Subject: GLOWBUGS digest 304

From: [email-masked]
Date: Sat, 28 Sep 1996 06:37:34 -0500 (CDT)

GLOWBUGS Digest 304

Topics covered in this issue include:

  1) BA/GB Net weekend funzies
	by [email-masked]
  2) Hello
	by "Brian Carling" <[email-masked]>
  3) HELLO ? ? ?
	by "Brian Carling" <[email-masked]>
  4) (Fwd) Fwd: Re: BA Call For Votes
	by "Brian Carling" <[email-masked]>
  5) Re: HELLO ? ? ?
	by Jeffrey Herman <[email-masked]>
  6) Re: Hello
	by [email-masked] (michael silva)
  7) Re: HELLO ? ? ?
	by "Brian Carling" <[email-masked]>
  8) Re: Hello
	by "Brian Carling" <[email-masked]>
  9) Re:  QRP & tubes
	by Paul Harden <[email-masked]>
 10) (Fwd) Re:  QRP & tubes
	by "Brian Carling" <[email-masked]>
 11) Re: QRP & tubes
	by [email-masked] (Charles Kadesch)
 12) Re: QRP & tubes
	by "Harley L. Miller" <[email-masked]>
 13) Re: QRP & tubes
	by [email-masked] (Stephen M Smith)
 14) Re:  QRP & tubes
	by [email-masked] (David Feldman)
 15) Tube QRP
	by [email-masked] (Scott Brigham)
 16) Re: QRP & tubes
	by "Harley L. Miller" <[email-masked]>
 17) Re: Tube QRP
	by [email-masked] (Scott Brigham)
 18) Re: QRP & tubes
	by [email-masked] (Stephen M Smith)
 19) Re: QRP with tubes
	by Bob Duckworth <[email-masked]>
 20) RE: QRP with tubes
	by [email-masked] (Forrest B. Snyder Jr)
 21) QRP Group
	by Paul Bernhardt <[email-masked]>
 22) Re: QRP with tubes
	by Bob Rolfness <[email-masked]>
 23) Re: Tube QRP
	by [email-masked] (Scott Brigham)
 24) Re: QRP with tubes
	by Jeffrey Herman <[email-masked]>
 25) Re: QRP with tubes
	by [email-masked]
 26) glass qrp
	by [email-masked] (John D Hensley)
 27) Tube QRP
	by "Harley L. Miller" <[email-masked]>

----------------------------------------------------------------------

Date: Fri, 27 Sep 1996 15:29:55 -0400 (EDT)
From: [email-masked]
To: [email-masked], [email-masked]
Cc: [email-masked] ()
Subject: BA/GB Net weekend funzies
Message-ID: <[email-masked]>

Well, another find weekend, she be upon us, an' wid that Lunar Eclipse over,
it should be fine fer rattlin' an' bangin' on de ol' brass monkey.  Hope to
'ear ye, byes the bye, on the usual QTR/QRG....

QTR 0100Z QRG 7050R5KHZ/QTR 0200Z QRG 3579R545KHZ/QTR 0300Z QRG 1802R5KHZ

An if ye plys the ether with really ancient glowbottle burners, nee them
thar glowbuggye thingies....

QTR 0400Z QRG 3579R545KHZ

Come on, now, an makes ye some fine company fer WS4S's fine TCS an'
W5TVW's fine breadboard bottleburner.....

73/ZUT DE NA4G/Bob UP

p.s.  If ye be bye 7020KHZ or 3520KHZ, inbetweentimes, rattles ye a dit
      or a call, fer a round o' QRQ.  Them thar bottleburners need an
      occasional sprint or twoe ta keeps them fit an' spry......

------------------------------

Date: Fri, 27 Sep 1996 16:27:09 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: Hello
Message-ID: <[email-masked]>

Hi - is anyone here?
I haven't seen too many messages!
There was a bunch of us interested in QRP and small tube CW 
transmitter construction projects for this winter!

I am here and ready to start putting together some new junkbox 
supplies!

Bry, AF4K
Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: Fri, 27 Sep 1996 19:57:49 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: HELLO ? ? ?
Message-ID: <[email-masked]>

Anybody else here yet?
72 de AF4K
Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: Fri, 27 Sep 1996 19:57:49 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: (Fwd) Fwd: Re: BA Call For Votes
Message-ID: <[email-masked]>

VOTE! VOTE! VOTE!

------- Forwarded Message Follows -------

For those who may have tried to cast their vote for (or against) the 
proposed new boatanchors newsgroup and found the referenced message 
from my earlier post missing from their ISP (as I did), here's the 
voting procedure:

----- Forwarded message begins here -----

From: Stan Korzep  <[email-masked] >
To: <[email-masked]>
Date: Fri, 27 Sep 1996 19:21:14 -0400
Subject: Re: BA Call For Votes

Hi Dick

The form required by the automated tally mechanism:  

                address:  [email-masked]

                text:  I vote YES on rec.radio.amateur.boatanchors

In approximately 24 hours, you will receive an acknowledgement of vote.

------ Forwarded message ends here ------

                             Dick Dillman
                       WPE2VT  N6VS  ex-WA2BJK
                        <[email-masked]>
                      Collector of Heavy Metal:
                Harleys, Willys and Radios Over 100lbs.

Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: 	Fri, 27 Sep 1996 17:03:54 -1000
From: Jeffrey Herman <[email-masked]>
To: Brian Carling <[email-masked]>
Subject: Re: HELLO ? ? ?
Message-ID: <Pine.GSO.3.93.960927170259.10224E-100000@uhunix5>

Well Brian, you've missed some very very good articles regarding
regen receivers. Did you get Bob's note about the BA/Glowbug CW
net?
Jeff KH2PZ

On Fri, 27 Sep 1996, Brian Carling wrote:

> Anybody else here yet?
> 72 de AF4K
> Brian Carling in Gaithersburg, Maryland, USA
> [email-masked]
> http://www.mnsinc.com/bry/
> 

------------------------------

Date: Fri, 27 Sep 1996 20:44:31 -0700
From: [email-masked] (michael silva)
To: [email-masked]
Subject: Re: Hello
Message-ID: <[email-masked]>

You wrote: 
>
>Hi - is anyone here?
>I haven't seen too many messages!
>There was a bunch of us interested in QRP and small tube CW 
>transmitter construction projects for this winter!
>
>I am here and ready to start putting together some new junkbox 
>supplies!

Hi Brian (and others who may have found the group from the QRP thread),

This group goes in spurts -- there were a number of messages a few days 
ago on regen receivers and home-made plate chokes, then it got quiet.

So, tell us, what have you got in your junkbox and what do you want to 
make out of it?

Speaking of junkboxes, I've discovered that Mouser is a surprisingly 
good source for tube-friendly components.  For example, they sell the 
heavier gauges of magnet wire (for winding those pillbottle coils) for 
$9-10 per one pound spool, about half what other folks seem to charge.  
They also have terminal strips, some fairly large RF chokes that I want 
to try, and very good prices on 1/2 watt resistors (1.4 cents @ 100).  
I'm thinking about ordering a range of the 20% values, so for around 
$35 and perhaps some creative paralleling I'll have just about all the 
bigger-than-1/4W resistors I'll ever need.

73,
Mike, KK6GM

------------------------------

Date: Sat, 28 Sep 1996 04:12:04 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: Re: HELLO ? ? ?
Message-ID: <[email-masked]>

> Date:          Fri, 27 Sep 1996 22:06:52 -0500 (CDT)
> Reply-to:      [email-masked]
> From:          Jeffrey Herman <[email-masked]>
> To:            Multiple recipients of list <[email-masked]>
> Subject:       Re: HELLO ? ? ?

> Well Brian, you've missed some very very good articles regarding
> regen receivers. 

But... I don't LIKE regen receivers! (GRIN!)
Actually I built a TRF receiver using about 5 or 6 EF50 tubes back 
around 1962.
They were UGLY loctal tubes ("valves" to us!) with a loctal base - 
BRIGHT RED metal case - no exposed glass, and perfectly cylindrical, 
looking like a small canned food item at the grocery!

I never got a squeak out of the receiver and trashed it in disgust!

>Did you get Bob's note about the BA/Glowbug CW
> net?

Yeah - that's a great idea. I am super busy right now, but can 
possibly get on such a net after this weekend, but of course *I* 
don't have a glowbug xmtr until I build one, he he!

72 de AF4K
Bry
Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: Sat, 28 Sep 1996 04:12:05 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: Re: Hello
Message-ID: <[email-masked]>

[email-masked] to GLOWBUGS:

> >Hi - is anyone here?
> >I haven't seen too many messages!
> >There was a bunch of us interested in QRP and small tube CW 
> >transmitter construction projects for this winter!
> >
> >I am here and ready to start putting together some new junkbox 
> >supplies!
> 
> Hi Brian (and others who may have found the group from the QRP thread),
> 
> This group goes in spurts -- there were a number of messages a few days 
> ago on regen receivers and home-made plate chokes, then it got quiet.
> 
> So, tell us, what have you got in your junkbox and what do you want to 
> make out of it?
> 
> Speaking of junkboxes, I've discovered that Mouser is a surprisingly 
> good source for tube-friendly components.  For example, they sell the 
> heavier gauges of magnet wire (for winding those pillbottle coils) for 
> $9-10 per one pound spool, about half what other folks seem to charge.  
> They also have terminal strips, some fairly large RF chokes that I want 
> to try, and very good prices on 1/2 watt resistors (1.4 cents @ 100).  
> I'm thinking about ordering a range of the 20% values, so for around 
> $35 and perhaps some creative paralleling I'll have just about all the 
> bigger-than-1/4W resistors I'll ever need.
> 
> 73,
> Mike, KK6GM

Hi Mike & everyone. My Junkbox is in BAD shape! To much post 1975 
stuff! I have a number of solid state power supplies etc., but i DO 
have a few tube sockets and tubes. Maybe even enough stuff to put 
together a small 80 meter CW transmitter (I think I even have an xtal 
for that band!) - so what I am going to do, is to get it all out next 
weekend when I have some time and see exactly what I have and what I 
might need to build like a small 2 or 3 tube xmtr! Can't wait.

Guys, I am still going to write up my earlier experiences with 
"valves" and amateur radio etc., from over in England in the 
1950-1970 era and pass it out here. I think you will all get a kick 
out of some of the wild stories!

Meanwhile, to keep you all amused, I will pass along some of the 
GROUPMAIL that some of the guys have sent over the past week, before 
I realized that this list existed!

More coming at you soon - Bry, AF4K
Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: Mon, 23 Sep 1996 17:05:21 -0600
From: Paul Harden <[email-masked]>
To: [email-masked]
Subject: Re:  QRP & tubes
Message-ID: <[email-masked]>

Brian,
As if I don't have enough irons in the fire ... but a future
project I'd like to do before too long is build a vacuum tube
transceiver.  I've got all the parts and then some left over
from the good old days.  Have a bunch of old postage stamp
ceramic caps, original Fhanestok clips (sp?), vintage switches,
etc.  Just need to sit down and do it.

Are you using a HB vacuum tube rig?  Something about them
things that glow in the dark ... they have a romance you
never forget.  hi.

72, Paul NA5N

------------------------------

Date: Sat, 28 Sep 1996 04:19:12 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked]
Subject: (Fwd) Re:  QRP & tubes
Message-ID: <[email-masked]>

------- Forwarded Message Follows -------
Date:          Mon, 23 Sep 1996 21:51:14 -0700
From:          [email-masked] (David Feldman)
To:            [email-masked]
Subject:       Re:  QRP & tubes

I did, back in about 1971. A single 50L6 as a 40M oscillator, crystal
controlled.

See the now long out-of-print book 104 projects for the radio amateur.

MUCH FUN!!!!!

73 Dave WB0GAZ [email-masked]

Brian Carling in Gaithersburg, Maryland, USA
[email-masked]
http://www.mnsinc.com/bry/

------------------------------

Date: Mon, 23 Sep 1996 18:59:21 -0700
From: [email-masked] (Charles Kadesch)
To: [email-masked]
Subject: Re: QRP & tubes
Message-ID: <[email-masked]>

Bry:
Yes I'm working on getting my Meissner Signal
Shifter going (5 watts with an 807!). What are
your plans??
72
Chas W8KUX
[email-masked]

------------------------------

Date: Tue, 24 Sep 1996 07:44:32 -0500
From: "Harley L. Miller" <[email-masked]>
To: [email-masked]
Subject: Re: QRP & tubes
Message-ID: <[email-masked]>

Brian Carling wrote:
> 
> Is anyone else using TUBES to generate their QRP signals???
> Bry, AF4K
====================
Bry:

I just started to build a one-tube crystal-controlled xmtr for 40m with
a 6V6, and am considering modifying it to include a 6AG7 VF, and maybe
making it multi-band with plug-in coils. The one-tuber is in the January
'85 issue of CQ magazine, and a similar set with vfo is in the 'Low and
Medium Frequency Scrapbook' by Ken Cornell.
What sparked (g) your interest in the tube construction?

WB0ROQ     QRP-L #393     ARS #77

------------------------------

Date: Tue, 24 Sep 1996 18:21:00 EDT
From: [email-masked] (Stephen M Smith)
To: [email-masked]
Subject: Re: QRP & tubes
Message-ID: <[email-masked]>

Well Bry, I haven't had that rig on the air in probably over 20 years,
but I've been thinking about doing just that and I you just pushed me
past the thinking stage.  I just went out to the garage and up on the
shelf, there it sat (boy is it DUSTY).  Still has a crystal in it for
7160, not much use now but that used to be part of the Novice segment. 
It's all there (Even has a Collins "meatball" emblem stuck on the front
as a joke.  That's the closest I could get to owning a Collins anything
when I was a kid!).  So I checked around the shop for crystals.  You
know, I could kick myself for getting rid  of those old rocks now.  When
I got a rig with a VFO I figured that I'd never need those fossils again,
so I sold almost all I had at the swap meet.  However, I did find three
that hold some promise:  7040 (I hope that one works), 7050 (don't know
how quiet that freq. is)  and 7137.  I also found one I could grind up in
freq. if I have to (6950 kHz).  All FT243 holders!  Classic.  So I guess
the next thing to do is to fire the old beastiet up.  I'll bring it up
slowly on a variac to let the electrolytics "heal" and to let the getter
in the 6L6 clean up the vacuum. I sure hope the jug isn't gassy.  I'll
check out the crystals and let you know what I end up with.  Maryland
would be my best DX with that rig.  I think the farthest I ever talked
was St. Louis, MO if  I remember correctly.  But my antenna was pretty
poor, although I didn't realize it at the time.  It was an inverted 'V'
with the ends up about 12' off the ground.  The bad thing about it was
that  I used a metal pole to support it and didn't use a balun, so I
imagine that the radiation patern was probably pretty goofy from the
interaction of the feedline.  Also, even if the pattern was somewhat
correct, it was oriented S.E./N.W., not too good for the majority of the
US from here,  near Los Angeles.  But I used to rag chew all over the
west with the thing, so I was happier than a clam at high tide.  I'm sure
that I'll have to get an antenna aimed your direction if we hope to have
any success.  With my current lot, I figure another inv. V or  maybe a
vertical (I have room for radials here) or maybe a sloper.  I can try
several antennas at the same time, I have some space here.  I've also
been thinking about playing with a compact loop.  

BTW, I have one other rig left over that I built during my novice days. 
It was considered QRP back then when 100 Watts was QRP.  I is a 12BY7
followed by a 1625 (an 807 with a 12 volt filament).  It runs 75 Watts,
has plug in coils for band change although I only wound coils for 40
meters.  I built that one from plans from the  ARRL handbook.  It's a
clean machine, really has a nice note.  It's along side the 6L6 up on the
shelf.  I think it might need some repair, seems that I lent it to a
friend once upon a time and he fried the plate choke in the final.  But
again, it's all there so maybe I can get both of them going.  If we
couldn't make it with the 6L6, I could bring out the 'big gun'.  I don't
have anything else for low bands at this time, only a receiver and some
flea power QRP 40 meter stuff.  I'll tell you about my "Super Duper-X Spy
Transmitter" sometime.  

So what do you have on that end?  Boy, QRP-L has sure got me fired up
again.   In the evening I pour over old magazines, handbooks and
downloads from the ftp site.  My wife thinks I'm nuts.  But she's been
through it before.  I was really wrapped in the local repeater systems
around here in the early 70's and that actually led to my career in
two-way radio.

BTW, my father and my relatives on that side of the family are from
Maryland, Eastport near Anapolis.

That's it for now.  73.......Steve

------------------------------

Date: Wed, 25 Sep 1996 04:05:07 -0700
From: [email-masked] (David Feldman)
To: [email-masked]
Subject: Re:  QRP & tubes
Message-ID: <[email-masked]>

Someone is taking the old MILLIWATTs and scanning them into images in
adobe acrobat, and saving them on CDROM for re-distribution.

Maybe someone will do that with the old tube project books someday...

Just a musing...

Dave

------------------------------

Date: Wed, 25 Sep 1996 08:20:11 -0500
From: [email-masked] (Scott Brigham)
To: [email-masked]
Subject: Tube QRP
Message-ID: <[email-masked]>

Hi Bry --

I've been getting back into hamming in the past
few years after letting it wane, and have been
focusing on QRP and boatanchor worship.  One thing
I dug out of my pile of "stuff" was a one-tube
QRP transmitter I built about 10 years ago.
It uses a 6AQ5, is crystal controlled and puts
out about 2 watts on 80 and 40 meters.  The only
problem is, I have no idea where I got the original
plans for it -- some book I must have gotten at
the library at the time.  It is a cute little 
rig.  I may have to reverse engineer it some day
and at least create a schematic.

73,
Scott
============================================================================
 [email-masked]
 Scott Brigham  (AA0HU)   "Lamb Chop is a U.S. puppet, down with Lamb Chop!"
 Rosemount, Inc.            
 Eden Prairie, MN  USA                             - my gal Jo
============================================================================

------------------------------

Date: Wed, 25 Sep 1996 08:36:03 -0500
From: "Harley L. Miller" <[email-masked]>
To: [email-masked]
Subject: Re: QRP & tubes
Message-ID: <[email-masked]>

Brian Carling wrote:
> 
> Hello - well, I have built numerous things like that over the years.
> There seems to be quite a few of us out here still willing to try it!
> 
> I might even put together an informal cc: groupmail list so we can
> all communicate here! Would that interest you?
> 
> Kinda busy with work now (an interruption to REAL LIFE on the
> Internet and ham radio, he he!)
> 
> 73,
> 
> Bry, AF4K
> 
> > Date:          Tue, 24 Sep 1996 07:44:32 -0500
> > From:          "Harley L. Miller" <[email-masked]>
> > Reply-to:      [email-masked]
> > To:            [email-masked]
> > Subject:       Re: QRP & tubes
> 
> > Brian Carling wrote:
> > >
> > > Is anyone else using TUBES to generate their QRP signals???
> > > Bry, AF4K
> > ====================
> > Bry:
> >
> > I just started to build a one-tube crystal-controlled xmtr for 40m with
> > a 6V6, and am considering modifying it to include a 6AG7 VF, and maybe
> > making it multi-band with plug-in coils. The one-tuber is in the January
> > '85 issue of CQ magazine, and a similar set with vfo is in the 'Low and
> > Medium Frequency Scrapbook' by Ken Cornell.
> > What sparked (g) your interest in the tube construction?
> >
> > WB0ROQ     QRP-L #393     ARS #77
> >
> >
> >
> >
> Brian Carling in Gaithersburg, Maryland, USA
> [email-masked]
> http://www.mnsinc.com/bry/
===================
Bry:

Yes I would be interested in an informal list to discuss tube projects.
We might help each other find some tubes also. I dug into my old tube
box last night and found only one 6AG7 to use for my VFO, hope it still
works. It was a metal can Mil. Spec.! Found a 6L6 metal also. I have a
good collection of 73, CQ, QST and various assorted such as Popular
Electronics that I find some old tube projects. They were mostly
nostalgia articles, but a few from the era when tubes *were* radio. Also
I mentioned in the last post that I have the 'Low and Medium Frequency
Radio Scrapbook'. It is geared to those frequencies, and has a lot of
tube gear projects, just scale up the frequency components and they fit
the ham bands.
I retired this June after 35 years teaching bands in NE and MO, so I
have some time on my hands right now. Will probably get some kind of job
to supplement retirement pay and keep busy.
I ran across a web site that proposed a low power tube station for its
members. Don't remember what the exact name or address was, but it
called itself the Pisweaker group. If I find it again, I'll let you know
where it is, but you can probably find it through a search engine or ham
radio links. They were trying to get up interest in what we are
discussing and may be a good contact.
Keep in touch and lets see what we come up with. As soon as we get gear
operational, lets try a sked contact. If enough are interested we may be
able to get up an informal net.

Harley L. Miller  WB0ROQ
QRP-L #393     ARS #77

------------------------------

Date: Wed, 25 Sep 1996 13:58:06 -0500
From: [email-masked] (Scott Brigham)
To: [email-masked]
Subject: Re: Tube QRP
Message-ID: <[email-masked]>

Hi Bry --

Well, I guess this sounds like as good a time as
any to reverse engineer that little rig!  I currently
haven't offically subsribed to the QRP list; I have
been downloading it off a web site (http://sunsite.unc.edu/modena/)
so none of this is going through the list right now.

I will try and sit down with the rig in the next week or so
and figure out the schematic.  There may be a choke or trimmer
cap whose value I might not know.  There is also the coil in
the pi network which is a homebrew multi-tapped thing that is
wound on a 35mm plastic film canister.  But if I get this
all written down, maybe I could post something to the list
offering the schematic and notes to anyone for a SASE.  I
don't have any way of putting it on a website.

As far as scheds go, my antenna situation is pretty lame right
now, with my 40m vertical sort of being supported by the tree
it has fallen into.  It may work, but who knows.  I will keep
your email note, and let you know if I can swing something
like that in the near future.

73,
Scott
============================================================================
 [email-masked]
 Scott Brigham  (AA0HU)   "Lamb Chop is a U.S. puppet, down with Lamb Chop!"
 Rosemount, Inc.            
 Eden Prairie, MN  USA                             - my gal Jo
============================================================================

------------------------------

Date: Thu, 26 Sep 1996 00:43:16 EDT
From: [email-masked] (Stephen M Smith)
To: [email-masked]
Subject: Re: QRP & tubes
Message-ID: <[email-masked]>

Bry,

"The Scrounger" is on the variac tonight.  I'm bringing it up in 25V
increments about 1/2 hour per step.  And guess what else?  The rectifier
is a TUBE too!  A 5Y3 I think (I can't get a good look at it. "The
Scrounger" has an aluminum shield cover over the chasis and I don't want
to take it off to look.  Fancy, huh?)  I had thought that I  had used
silicon diodes.  Now I have a confession to make.  I really hate tubes. 
I got that way when I was a young tech and had to keep all kinds of
boatanchor tube type  two-way radios going for a living.  But I have fond
memories of using "The Scrounger" so that's why I've decided to bring it
out of retirement.  I'll keep you posted.  BTW, why don't we get the
other QRP tube guys to meet in a chat room some time?  WBS has a ham chat
channel.  Also, I've started writing a giant e-mail to send you regarding
the 60's, etc., but that'll take a while to finish.

73.......Steve, WB6TNL

------------------------------

Date: Thu, 26 Sep 1996 07:43:36 -0400 (EDT)
From: Bob Duckworth <[email-masked]>
To: [email-masked]
Subject: Re: QRP with tubes
Message-ID: <[email-masked]>

Brian-
Why don't you guys use the list for this.
No way that Jack can complain about it, esp. 
after the cats/rats/balloons stuff.
-bob
> 
> Hi guys!
> I was wondering if anyone here is interested in builing / 
> resurrecting small QRP tube CW transmitter(s)?
> There is a small group of us corresponding about such tings via an 
> e-mail cc: list - If you'd like to join us in chatting about these 
> things drop me an e-mail.
> 
> Several guys are going to build such this fall/winter and maybe try 
> to sked on the air, others are resurrecting old homebrew tube QRP rigs
> that they built years ago, and still others are just trading stories 
> about such experiences.
> 
> E-mail to AF4K by replying to this
> (  [email-masked]  )
> Brian Carling in Gaithersburg, Maryland, USA
> [email-masked]
> http://www.mnsinc.com/bry/
> 

------------------------------

Date: Thu, 26 Sep 96 08:19:23 -0400
From: [email-masked] (Forrest B. Snyder Jr)
To: [email-masked] (Brian Carling)
Subject: RE: QRP with tubes
Message-ID: <[email-masked]>

Good Morning Brian!

Put me on your distribution.

There's plenty of interest -- there's even a "Glowbugs" list devoted to such 
things.  

Also, check out the BA and Glowbug archives -- the NA4G directory
has updated plans for a 160 or 80 Meter Hartley Oscillator as presented by the 
legendary George Grammer in QST in the late '30s.  I've downloaded thess files 
(with graphics) and can forward them via eMail if you're interested.

Forrest B. Snyder, Jr     
N4UTY     [email-masked]
RCVR:     BC-348-R
XMTR:     Johnson Adventurer -- 50 W to a single 807
Johnson Matchbox
40 Meter Center-fed Zepp between two trees at 30 feet
"Sure, it's 1936 technology, but it's GOOD 1936 technology!" 
>Hi guys!
>I was wondering if anyone here is interested in builing / 
>resurrecting small QRP tube CW transmitter(s)?
>There is a small group of us corresponding about such tings via an 
>e-mail cc: list - If you'd like to join us in chatting about these 
>things drop me an e-mail.
>
>Several guys are going to build such this fall/winter and maybe try 
>to sked on the air, others are resurrecting old homebrew tube QRP rigs
>that they built years ago, and still others are just trading stories 
>about such experiences.
>
>E-mail to AF4K by replying to this
>(  [email-masked]  )
>Brian Carling in Gaithersburg, Maryland, USA
>[email-masked]
>http://www.mnsinc.com/bry/
>
>

------------------------------

Date: Thu, 26 Sep 1996 09:03:23 -0400 (EDT)
From: Paul Bernhardt <[email-masked]>
To: Brian Carling <[email-masked]>
Subject: QRP Group
Message-ID: <[email-masked]>

Brian,
  Please add me to your QRP tube group.  I also have another ham friend 
at work that keeps talking about QRP so I will ask him if he wants to join.
Sincerely, Paul Bernhardt, KF4FOR
           5740 Ridge View Dr
           Alexandria, VA 22310
           Phone: 703-960-9656

------------------------------

Date: Thu, 26 Sep 1996 06:30:38 -0700
From: Bob Rolfness <[email-masked]>
To: [email-masked]
Subject: Re: QRP with tubes
Message-ID: <[email-masked]>

Brian - I'd be interested in such a project.  Ever since joining the 
list I've though about my first novice transmitter in 1954.  In those 
days the ARRL had a publication called HOW TO BECOME A RADIO AMATEUR and 
if I remember correctly it contained a single 6V6 crystal oscillator 
transmitter.  The little rig was most unique for it was constructed on a 
wooden chassis formed by 2 end blocks holding 2 parallel slats 
which between them were a tube and crystal socket.  The coil was wound 
with "BELL WIRE" and used small wooden pegs or dowels verically into the 
chassis as a form.  There was a matching power supply chassis using a 
5Y3.

I know it was simplest of rigs, running maybe 4 or 6 watts, but as a 
young teen ager I can't tell you the hours of joy and wonderment it 
provided.   BTW - The receiver was an ARC-5 and I had one crystal, 3701 
Kcps.  I turely was in HOG HEAVEN......

I've often thought about reconstructing this rig.

73's  Bob  W7VZX

Brian Carling wrote:
> 
> Hi guys!
> I was wondering if anyone here is interested in builing /
> resurrecting small QRP tube CW transmitter(s)?
> There is a small group of us corresponding about such tings via an
> e-mail cc: list - If you'd like to join us in chatting about these
> things drop me an e-mail.
> 
> Several guys are going to build such this fall/winter and maybe try
> to sked on the air, others are resurrecting old homebrew tube QRP rigs
> that they built years ago, and still others are just trading stories
> about such experiences.
> 
> E-mail to AF4K by replying to this
> (  [email-masked]  )
> Brian Carling in Gaithersburg, Maryland, USA
> [email-masked]
> http://www.mnsinc.com/bry/

------------------------------

Date: Thu, 26 Sep 1996 10:13:10 -0500
From: [email-masked] (Scott Brigham)
To: [email-masked]
Subject: Re: Tube QRP
Message-ID: <[email-masked]>

Having you post it on your website sounds like a great
idea, Brian.  I actually took the beast in hand last
night and traced out the circuit.  I have a really 
cheezy power supply for it, which I can't remember if
it was part of the original plans or if I just put it
in myself.  Anyway, it uses a 125VAC secondary into
a voltage doubler circuit.  The only problem is, I
measured the DC voltage coming out and it is 350 volts.
The max rating on the 6AQ5A is 275V, with 250V typical
for operating.  So I am going to have to do some tweaking
to it.  On the schematic I will just show the B+ line
as being 250V and people can slap in their own power supply.

If you can give me your snail mail address I will send
you a paper copy of the schematic and parts list and
you  can take it from there....

Scott
AA0HU

------------------------------

Date: 	Thu, 26 Sep 1996 05:25:59 -1000
From: Jeffrey Herman <[email-masked]>
To: Brian Carling <[email-masked]>
Subject: Re: QRP with tubes
Message-ID: <Pine.GSO.3.93.960926052257.26480G-100000@uhunix5>

On Thu, 26 Sep 1996, Brian Carling wrote:
> Hi guys!
> I was wondering if anyone here is interested in builing / 
> resurrecting small QRP tube CW transmitter(s)?
> There is a small group of us corresponding about such tings via an 
> e-mail cc: list - If you'd like to join us in chatting about these 
> things drop me an e-mail.

Hi Brian,
The Glowbugs email list was created exclusively to combine tubes and
QRP; Bob Keys and some others are active on it. To sub, email to:
[email-masked]  and only write:  subscribe glowbugs <your name>
and you'll be hooked up. Get your group on there so the two groups
can join forces!
73,
Jeff KH2PZ / KH6

------------------------------

Date: Thu, 26 Sep 1996 11:49:51 -0400
From: [email-masked]
To: [email-masked]
Subject: Re: QRP with tubes
Message-ID: <[email-masked]>

definitely would be interested in the list--just last weekend bought a roller
coil for a 6BA6-6L6 160 meter rig I'm building.

73, Brian 
[email-masked]

------------------------------

Date: Thu, 26 Sep 1996 19:26:42 PST
From: [email-masked] (John D Hensley)
To: [email-masked]
Subject: glass qrp
Message-ID: <[email-masked]>

Hi Brian,

I'm interested in the QRP tube idea in the
sense that I am interested in WW2 era and
think it would be interesting to learn how to
duplicate minimal size or unique or suitcase
radio gear.  I think that falls into the tube qrp
class.

By the way, in the 60's I earned the first WAS
and first WAC awards issued by QRP Int'l to
a Louisiana ham.  I still have the certificates.
Not an outrageous accomplishment, but 
interesting!

73,  Doug

------------------------------

Date: Thu, 26 Sep 1996 14:34:05 -0500
From: "Harley L. Miller" <[email-masked]>
To: [email-masked]
Subject: Tube QRP
Message-ID: <[email-masked]>

Bry & the group:

Responding to Bry's call to introduce ourselves: I am Harley L. Miller
WB0ROQ, Kansas City MO. I've been a ham since 1974, but interested and
experimenting with electronics for a longer time. A friend Gene W0UJI,
and I used to throw a wire over telephone lines and listen to phone
conversations with a crystal radio in the early 50's. My 'formal'
training in radio was in Army Radio School at Ft. Benning GA in 1958
(almost all tube). I went through the usual building phase of
tube-transistor in the 70's and built a DX-60/HR-10b Heathkit set for my
novice (WN0ROQ) station, then added a HG-10b VFO (which I still have). I
used that till about 1980 when I bought a used Yaesu FT-101B station.
This is still my 'big' setup, tunable from almost 0 to @300 W, and used
for qrp, cw/ssb/am. About 1985 I got a used Heathkit HW-8 in near mint
condition to become my portable rig and this station is fitted into a
sturdy Sampsonite brief case.
I retired this June after 35 years teaching, and since then have been
catching up on some things I wanted to do, now am ready to get a
part-time job to keep busy and supplement the retirement pay.
Having been an active scrounger for years, I have a supply of tubes from
radio and television sets that I have 'repaired'. In addition, I have a
small collection of old tube BC/SW radios in various stages of
restoration.
While web surfing one day, I ran across a site called the Pisweakers
club (lost it since) interested in qrp and tubes. It stirred up some
long-dormant juices and I started to scrounge up the parts to build a
tube xmtr about the time that Bry made a call for tubers.
Searching my database of CQ, QST, PE, HR and etc. magazines, I soon came
up with a simple 1-tuber (CQ Jan 85 p22) using a 6V6/opt. 6L6 which I
had in stock. At a local Ace Hardware store I found a pvc pipe, no
diameter given, identified as 'Crestline PVC SDR 21' which is a perfect
fit over the base of an Amphenol 8-pin male chassis or connector plug.
This is about the same diameter as the ubiquitous toilet paper roll that
figured in a lot of homebrew coil-winding, and is the basis of my
link-coupled output coil to be plugged into a socket for interchangable
band-changing coils. I have a bunch of CW company crystals (CW has gone
out of business, but a new company has sprung up, Phoenix Crystals, also
in Missouri, and it may be rising from the ashes of CW. I have sent a
letter to the address given on QRP-L, no answer yet to queries about the
range of crystals to be available). Remembering that 1tubers were prone
to choip, I am planning for buffer/regulator stages to be added if
needed, and am considering a VFO with a 6AG7.
I checked into Bry's web page and it is really super. My own pages are
somewhat primitive at this stage and I am working on a ham-related page
to go with my genealogy and community orchestra pages. So much to do and
so little time, even when retired.
I'm looking forward to hearing from some of the others in the tuber
group. I'm familiar with a couple names from the QRP-L list, but would
be interested in hearing more about all of you.

Harley L. Miller     WB0ROQ
QRP-L #393     ARS #77

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End of GLOWBUGS Digest 304
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