Daily GLOWBUGS
Digest: V1 #13
via AB4EL Web Digests @ SunSITE
Purpose: building and operating vacuum tube-based QRP rigs
Subject: glowbugs V1 #13
glowbugs Wednesday, April 23 1997 Volume 01 : Number 013
Date: Mon, 21 Apr 1997 16:26:41 -0400 (EDT)
From: JOHN SEHRING <JOHN_SEHRING.parti@ecunet.org>
Subject: MANUAL FOR JACKSON 640
To: glowbugs@www.atl.org
Been looking a lo-o-ong time for this:
Manual for a Jackson Electrical Instrument Company (Dayton, OH)
Model No. 640 `Test Oscillator' (RF signal generator).
Anybody, please?
-John Sehring (Sun, Apr 20, 1997 3:25 am MT @Baker, Montana) UCC WB2EQG
Date: Mon, 21 Apr 1997 15:43:00 -0700
From: "Bowman, Jim" <Jim_Bowman@ATK.COM>
Subject: RE: 2.5 Volt Power Transformers For Sale.
Hey gang, it seems to me you could use one of these xfmrs with solid
state rectifiers for the h.v. and hook the 5 V winding in series with
one half of the 2.5 V winding (so that the voltages add) to get about
6.3 V for the filaments of your little 6L6 rig etc. as long as you don't
exceed the current rating. Just a thought.
Jim W7HPK
Jim_Bowman@ATK.COM
----------
From: jkh@lexis-nexis.com
To: glowbugs@www.atl.org
Cc: jkh@lexis-nexis.com
Subject: 2.5 Volt Power Transformers For Sale.
Date: Fri, Apr 18, 1997 6:09AM
Folks,
Subject sounds a little funny but these are NOS/NIB power transformers
with
2.5v
filament windings for those who want to make use of the older type
tubes.
Please
reply via private email. Please note that AES is asking 3 times plus for
like
transformers.
POWER TRANSFORMERS FOR SALE
All in excellent+ condition and, of course, never used.
STANCOR VPT-1 (Victory Model) (for 6-8 tubes)
325-0-325 70ma
5v 9 amp
2.5v C.T. 3 amp
Horizontal half shell
Box ratty but with instruction sheet
$20 NIB
STANCOR P-6003 (for 6-8 tubes)
350-0-350 70ma
5v C.T. 3 amp
2.5v C.T. 9 amp
Horizontal half shell
Box nice and with instruction sheet
$20 NIB
FMA #9342 (for 4-6 tubes)
325-0-325 50ma
5v 3 amp
2.5v C.T. 1.75 amp
Horizontal half shell
Box OK with enough remains of the instruction sheet to get specs.
$15 NIB
Date: Mon, 21 Apr 1997 23:45:48 -0400 (EDT)
From: Brien Pepperdine <pepperb@gov.on.ca>
Subject: Pilot "Super Wasp"
I wonder if anyone out there is familiar with the regen receiver, by
PILOT, the "Super Wasp".
The reason I ask is a friend of mine has one that was in the trash,
literally, and picked up from said trash, and given to him. He is working
on restoring it.
I have seen the circuit, very fleetingly, on a copy he has of the manual,
and have to admit my retention of it is ZERO. If anyone knows this, I'd
like to know if it is a good candidate for copying in a home brew set. If
I wanted to I could get him to copy the manual for me, but before I
trouble him I thought I would try
to find out if I can what the tube line-up is and various general
things, like
the power voltages required, and all that.
It looked pretty nice. If NO one knows, I will take it on 'spec' to get
the copy and let the List know what is on it, and we can debate its
suitability for copying. It was dissassembled when I saw it, and the
glance at the paperwork was fast, so I might have missed something that
would not make it a good candidate building. Then again.... it might
be.
Anyone with an opinion can let me know.
One more thing - any one have any
recommendations on books from Lindsay
publications. There are more than a few interesting ones, so I'd like to
find out what is useful. Rocky's "Regen Secrets"? Any others have useful,
reproduceable circuits?
Brien
Toronto
pepperb@gov.on.ca
Date: Tue, 22 Apr 1997 10:24:40 -0400 (EDT)
From: rdkeys@csemail.cropsci.ncsu.edu
Subject: Re: Pilot "Super Wasp"
> I wonder if anyone out there is familiar with the regen receiver, by
> PILOT, the "Super Wasp".
Yup. They made a ``Wasp'' also, and they were battery and AC sets.
> The reason I ask is a friend of mine has one that was in the trash,
> literally, and picked up from said trash, and given to him. He is working
> on restoring it.
Great!
> I have seen the circuit, very fleetingly, on a copy he has of the manual,
> and have to admit my retention of it is ZERO. If anyone knows this, I'd
> like to know if it is a good candidate for copying in a home brew set. If
> I wanted to I could get him to copy the manual for me, but before I
> trouble him I thought I would try
> to find out if I can what the tube line-up is and various general
> things, like
> the power voltages required, and all that.
It can be a battery or an ac set. The schematic and description is in
Frederick Collin's ``Radio Amateur's Handbook'' from about 1933 or so.
It is a good general set with an RF stage, a detector and two audio
stages, if my memory serves me correctly. The schematics should be
in Rider, and in that 1934 ``Short Wave Manual'' Gernsback reprint.
It used 2.5 vac tubes for the AC model and equivalent tubes for the
dc version. I think they were 24's and 27's in the AC model and I
forget which was the triode offhand, but 76's would do well.
Actually, the circuit can be adapted to almost any tube.
Plate voltages were in the 135vdc range on battery and around 180vdc
on AC.
> It looked pretty nice. If NO one knows, I will take it on 'spec' to get
> the copy and let the List know what is on it, and we can debate its
> suitability for copying. It was dissassembled when I saw it, and the
> glance at the paperwork was fast, so I might have missed something that
> would not make it a good candidate building. Then again.... it might
> be.
It is an easy set to reconstruct. You can make it of aluminum or
bakelite, and the chassis is on aluminum skids or frames, that can
be made of wood or plastic or aluminum or whatever. If you are trying
to recreate it, the frames are extruded aluminum, and would be very
expensive to duplicate, now. But, if you are just trying to emulate
it, almost anything will do, nicely.
If you can get a manual, make me a clean copy and I will reprint it for
the on-line archives, in postscript.
> Anyone with an opinion can let me know.
>
> One more thing - any one have any
> recommendations on books from Lindsay
> publications. There are more than a few interesting ones, so I'd like to
> find out what is useful. Rocky's "Regen Secrets"? Any others have useful,
> reproduceable circuits?
The only one i have seen is that 1934 thingie. It is good and worth
having as a reference. I hear some of the others are good too.
73/ZUT DE NA4G/Bob UP
Date: Tue, 22 Apr 1997 11:35:46 -0400 (EDT)
From: leeboo@ct.net (Leon Wiltsey)
Subject: LOST EMAIL
>To: BA
>From: leeboo@ct.net (Leon Wiltsey)
>Subject: LOST EMAIL
>Cc:
>Bcc:
>X-Attachments:
>
>anybody sending a email to leeboo@ct.net
>please repeat. lost all messages for leeboo
>wed morning. tnx
>
Thank the good LORD for all that you have!!!
Leon B Wiltsey jr. (Lee)
4600 Lake Haven blvd...
Sebring fl 33872.............
68yr old retired semi disabled senior
(stroke got my balance and coordination)
formerly w4kcj & kp4ryb ( till I quite) dumb dumb
waiting for my tech+ lic to arrv 73's
play keyboard and sing
music 1920's to 60'
none of the 80'S- 90'S noise
Date: Tue, 22 Apr 97 16:11:22 EDT
From: jkh@mailgate2.lexis-nexis.com (John Heck)
Subject: Re: Pilot "Super Wasp"
Brien Pepperdine wrote:
> > One more thing - any one have any
> > recommendations on books from Lindsay
> > publications. There are more than a few interesting ones, so I'd like to
> > find out what is useful. Rocky's "Regen Secrets"? Any others have useful,
> > reproduceable circuits?
Lindsay has/had a *lot* of really good reprints on vintage radio subjects. His
catalog is free. The "trouble" with Lindsay, though, is that he does not seem to
like to keep many of his reprints in print very long. The catalog cautions you
against ordering from old catalogs. Over the past couple of years quite a few
titles have disappeared from the catalog, maybe never to reappear. *Lots* of
excellent reference material has been available, and continues to appear from
time to time. In the new catalog there was a very nice reprint "Radio Trouble
Shooting" by Enno Hahn, Associate Editor of Popular Mechanics magazine. This was
originally published in 1928 and is intended for laymen to setup, maintain, and
improve their broadcast radios. It's very instructive regarding radios of that
period. Also recently reprinted, although I don't know the title, is the most com-
prehensive encyclopedia of landline and wireless telegraphy that I have ever seen.
I suspect that this book is rather rare. It must be huge because the reprint runs
around $75, as I recall, but it sure would be a must for me if I were a telegraph
collector. I would say that about 1/2 of the books I have bought from Lindsay in the
last two years are now out of print so you oughta get his catalog. I don't work for
Lindsay but could I please??
Regards,
John Heck, KC8ETS
1009 Donson Drive
Dayton, Ohio 45429
(513)865-7036(work)
jkh@lexis-nexis.com
Date: Wed, 23 Apr 1997 07:09:34 -0400
From: BEN NOCK <106312.1035@compuserve.com>
Subject: Tube eqiv's ????
Hi, can anyone tell me the equiv's 1L5, 3S4 etc etc for
the following:
VT-171
VT-172
VT-173
VT-174
as used in the BC-728.
Thanks. Ben G4BXD
End of glowbugs V1 #13
**********************
Created by Steve Modena, AB4EL
Comments and suggestions to modena@SunSITE.unc.edu