Subject: GLOWBUGS digest 388

From: [email-masked]
Date: Fri, 20 Dec 1996 10:43:39 -0600 (CST)

GLOWBUGS Digest 388

Topics covered in this issue include:

  1) Re: Reprints
	by John Kolb <[email-masked]>
  2) Re: SW rig needed still!
	by "Robert M. Bratcher Jr." <[email-masked]>
  3) Specs on the 8646 tube
	by [email-masked] (Jeff Duntemann)
  4) Re: Reprints
	by John D Young <[email-masked]>
  5) Heath HP-23/C power supply
	by Robert Paschal <[email-masked]>
  6) Re: crystals
	by [email-masked] (Michael Herr)
  7) Re: SW rig needed still!
	by "Brian Carling" <[email-masked]>
  8) Re: Madison Electronics? (was Re:meters)
	by "Brian Carling" <[email-masked]>
  9) Modular regens
	by [email-masked] (John Heck)
 10) Re: Modular regens
	by Conard Murray <[email-masked]>
 11) Regens
	by "Stephen M. Linscott" <[email-masked]>
 12) new source of tube supplies
	by Stan Skelton <[email-masked]>

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

Date: Thu, 19 Dec 1996 08:45:43 -0800 (PST)
From: John Kolb <[email-masked]>
To: Wade Huffman <[email-masked]>
Subject: Re: Reprints
Message-ID: <[email-masked]>

> I am looking for reprint articles from "Ham Radio"
> magazine.
> March '72 page 6

I, like at least some others, chop up magazines, and save only
articles of interest, filed into different catagories. When 
posting for articles, it would be useful to post the name or 
description of the desired article. With an article descrition, 
I might be able to find it, or perhaps come up with a related
article the requestor wasn't aware of.

John

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

Date: Thu, 19 Dec 1996 10:42:09 -0600
From: "Robert M. Bratcher Jr." <[email-masked]>
To: [email-masked]
Subject: Re: SW rig needed still!
Message-ID: <[email-masked]>

At 03:50 PM 12/19/96 +0000, you wrote:
>Tony--
>
>>Do you a QRP AM transmitter, which will 
>>work PROPERLY in the 49MB???
>
>>From my own experience, I would guess a Clegg 99er or 66er (slightly more
>powerful) could be made to resonate and load at 49Mhz, designed as they were
>for 50-54 Mhz.  If I had a crystal to multiply to 49Mhz I'd give it a shot
>into the B&W but I don't think I have such a crystal in the box.  The 66er
>is a fine machine; wish I hadn't sold the one I had years ago.  2E26 final,
>puts out 8W with a good crystal and everything else in order.
>
>Doubtless people on this list or boatanchors would be the best first place
>to go to find a radio like that.
>
>Good luck and let us know how you do.
>
>--73--
>
>--Jeff Duntemann

When I first saw this I was wondering why someone would want to transmit in
the 49 meter SW broadcast band. He would be covered up by the megawatt SW
stations there.
Unless he meant 6955khz which is where the pirates hang out now. I listen
there sometimes but would never transmit on that frequency! I'm just not
the "pirate broadcaster" type.

My other thought was why 49mhz? Just where does this guy want to transmit &
why?
Maybe he meant 50mhz, six meters?

Robert M. Bratcher Jr.
E-mail to:
[email-masked]
Record collector, 8mm, super 8, 16 and 35mm Film collector.
I like old radio's too.
Collins, Hallicrafters, National & Hammurland are my Favorites!

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

Date: Thu, 19 Dec 1996 09:04:43 -0700
From: [email-masked] (Jeff Duntemann)
To: [email-masked]
Subject: Specs on the 8646 tube
Message-ID: <[email-masked]>

Hi gang--

While hip-deep in junk last night searching for jumbo sockets for Conard, I
happened across my "stash" of 8646 power tubes.  Got them in a Big Box 0'
Tubes for $20 years ago, and apart from a pencil note on the side of one box
that the filament is 24V, I know nothing about the tube.  It's a very late
era unit, I would guess post 1970 (!) with an integral heat sink.  The base
looks a little like a Compactron pin arrangement, only it's not the same.
(Somebody looked at it and said, "based like an 8821," but I have no idea
what an 8821 is.) No center positioning post a la 4CX250.

There were a couple of matching sockets in the box so I could conceivably
build something around these tubes.  Can anyone provide me with any
information on them at all?  Type 8646.  I don't even have the pinout.  It's
an RCA tube.

Thanks for any help at all.

--73--

--Jeff Duntemann KG7JF
  Scottsdale, Arizona

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

Date: Thu, 19 Dec 1996 11:59:47 -0500 (EST)
From: John D Young <[email-masked]>
To: Wade Huffman <[email-masked]>
Subject: Re: Reprints
Message-ID: <[email-masked]>

Wade
	My XYL says I'm a packrat but I keep moving my nearly complete 
set of Ham Radio.  I will check and let you know.  Send along your Smail 
address.

73  John   WA8KNE

On Thu, 19 Dec 1996, Wade Huffman wrote:

> I am looking for reprint articles from "Ham Radio"
> magazine.
> March '72 page 6
> January '74 page 14 & December '74 page 59
> Do you know of a source for this info?
> Thanks
> Wade Huffman  KZ5WH  E-mail [email-masked]
> 

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

Date: Thu, 19 Dec 1996 23:51:47 +0000
From: Robert Paschal <[email-masked]>
To: [email-masked]
Subject: Heath HP-23/C power supply
Message-ID: <19961219235145.AAA14366@LOCALNAME>

Seasons Greetings to all.

I'm building a Heath HX-1681 CW transmitter.  When I acquired the kit the
companion HP-23/C power supply had been built and I don't have a schematic
for the p/s.

I would appreciate any help in finding a schematic.

I built a HW-101 in the late 70's and it used a similar power supply and I
expect that the circuit would be fairly conventional but I always feel more
secure in trouble shooting when I have the documentation.  A parts list
would be nice also.

Thanks,

Bob   AA0MC

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

Date: Thu, 19 Dec 1996 16:05:32 -0800
From: [email-masked] (Michael Herr)
To: [email-masked]
Subject: Re: crystals
Message-ID: <v01530501aedeff361e0c@[199.120.150.58]>

>I have a question regarding crystals.
>Can you use a type HC49U crystal with these tube type rigs ?
>I am building the 6T9 Xmtr and dont have any FT243's to use.
>I'm thinking of Installing an HC49U crystal into an old FT243 case so it
>will look like one and I can use the socket to change bands.
Sure, no problem, as long as the xtal current isn't too high and shouldn't
be in the 6T9er. I did the same thing, wanted a FT243 at the color burst
freq, didn't have one so "built one" out of a FT243 case and a small rock I
had.
73
Mike WA6ARA

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

Date: Thu, 19 Dec 1996 20:33:56 +0000
From: "Brian Carling" <[email-masked]>
To: [email-masked] (Jeff Duntemann)
Subject: Re: SW rig needed still!
Message-ID: <[email-masked]>

On 19 Dec 96 at 9:50, Jeff Duntemann chatted merrily:

> Tony--
> 
> >Do you a QRP AM transmitter, which will 
> >work PROPERLY in the 49MB???
> 
> >From my own experience, I would guess a Clegg 99er or 66er
> >(slightly more
> powerful) could be made to resonate and load at 49Mhz, designed as

Jeff I think you misunderstood!

"49MB" is a shortwave radio term meaning the
49 meter band. Tony has a SW broadcasting operation out of Ireland!

All the best - Bry
********************************************************
*** 73 from Radio AF4K / G3XLQ in Gaithersburg, MD USA *
**  E-mail to:  [email-masked]                         *
*** See the great ham radio resources at:              *
**  http://www.mnsinc.com/bry/                         *
********************************************************

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

Date: Thu, 19 Dec 1996 20:33:56 +0000
From: "Brian Carling" <[email-masked]>
To: "Robert M. Bratcher Jr." <[email-masked]>
Subject: Re: Madison Electronics? (was Re:meters)
Message-ID: <[email-masked]>

Yep, I went in that store every once in a while in the early 80s.
I tried out a KWM-380 there once. VERY smooth sounding radio!

That was a neat store too, and they actually sold PARTS!

What a concept!

On 16 Dec 96 at 20:30, Robert M. Bratcher Jr. chatted merrily:

> At 07:53 PM 12/16/96 +0000, you wrote:
> >Don Busick, K5AAD, has hundreds of panel meters left over from the
> >closing of Madison Electronics.  Most are NOS (in original boxes),
> >some are surplus, and some are antiques.  Don's address is
> >
> >                 Don Busick
> >                 12310 Zavalla
> >                 Houston, TX 77085
> >
> >
> >
> >And no, I don't get a commission!  :-)
> >
> >                                          73 de W5EGP
> >
> >                                               - Steve -
> >
> >
> >
> >*******************************************************************
> >********
> ***
> >*     Steve Linscott        Divisional Consultant        Natural
> >Sciences
>   *
> >*   Rice University     6100 South Main Street    Houston, Texas
> 77005-1892  *
> >*    Phone: (713) 527-4985   FAX: (713) 527-6099   Email:
> >[email-masked]
>   *
> 
> Madison Electronics? Yeah I remember that place very well. Missed it
> when the place finally closed as so many other Houston customers
> did. No place like it that I know of anymore. Just ham radio swap
> meets now...
> 
> Robert M. Bratcher Jr.
> E-mail to:
> [email-masked]
> Record collector, 8mm, super 8, 16 and 35mm Film collector.
> I like old radio's too.
> Collins, Hallicrafters, National & Hammurland are my Favorites!
> 
********************************************************
*** 73 from Radio AF4K / G3XLQ in Gaithersburg, MD USA *
**  E-mail to:  [email-masked]                         *
*** See the great ham radio resources at:              *
**  http://www.mnsinc.com/bry/                         *
********************************************************

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

Date: Fri, 20 Dec 96 08:52:10 EST
From: [email-masked] (John Heck)
To: [email-masked]
Subject: Modular regens
Message-ID: <[email-masked]>

Hi Folks,
Do any of the more experienced regen builders in the group see any fundemental
problems with using a modular approach to constructing regens? The way I see it,
there are many regen designs available to tinker with but all of them have power
supplies, which already have been modularized, audio sections, rf amps in some
designs, and tuning/detection stages, where most of the serious variations seem
to take place. For instance, I have a nice little Knight mono amp for an audio 
stage, and well filtered power supply. I can see where it would be relatively
stright forward to build a simple, untuned RF amp/antenna coupler, any good conver-
ter design would do OK, I guess. I could then plug in any tuner/detector circuit
I wanted to play with without having to build the other stuff over and over. Any
problems with this approach?
Regards,
John Heck, KC8ETS
1009 Donson Drive
Dayton, Ohio 45429
(513)865-7036(work)
[email-masked]

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

Date: Fri, 20 Dec 1996 08:47:56 -0500
From: Conard Murray <[email-masked]>
To: [email-masked]
Cc: [email-masked]
Subject: Re: Modular regens
Message-ID: <[email-masked]>

I think John has a great idea here. From what I can see, the original users
of regens back around the Great War had modular sets of a sort ... probably
not for the same purpose that we want one for, but they look like the
individual sections could be lifted out of the cabinets.
He only problem I see with going too modularized is that you can't try two
seperate receivers at the same time ... which as I think about it wouldn't
work too well with regens anyway! 
Happy Holidays all,
de Conard, WS4S
   
.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
. Conard Murray  WS4S    Glowbugs listowner .
.  217 Dyer Avenue        [email-masked]  .
.   Cookeville, TN  38501  615-526-4093     .
.    <><  Wise men still seek Him  <><      .
.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.

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

Date: Fri, 20 Dec 1996 09:06:37 -0600 (CST)
From: "Stephen M. Linscott" <[email-masked]>
To: [email-masked]
Subject: Regens
Message-ID: <[email-masked]>

HERESY ALERT!! The following material contains references to SAND-BASED 
electronics!!

Yesterday afternoon UPS brought a package from Tennesee, and by 1:30 a.m. 
this morning I had completed the Ten-Tec Regen kit.  What a neat kit!  
Top-quality components, test-it-as-you-go construction, looks and works 
great.  I played 'til 2 a.m., but had to get up at 6:00, so I'm paying 
for it today!

Nine bands, pin-diode push-button band switching, RF amp, varactor main 
and bandspread tuning, plenty of audio to drive the built-in speaker, no 
drift and no "hand-effect" tuning.  It's really a well-designed regen.

I loved building it, but I missed the excitement that was there 
when I fired up the 833-A regen for the first time!  Making a kilowatt 
transmitting tube receive shortwave signals was a fun project.  The 
833-A receiver belongs to another ham now, but I kept the memories. 

Do you suppose we could persuade Ten-Tec to offer some TUBE kits?  :-)

                                      73 de W5EGP

                                              - Steve -

******************************************************************
*   Steve Linscott     Divisional Consultant   Natural Sciences  *
*   IS User Services      Rice University       Houston, Texas   *
******************************************************************

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

Date: Fri, 20 Dec 1996 08:15:35 -0800 (PST)
From: Stan Skelton <[email-masked]>
To: glowbugs list <[email-masked]>
Subject: new source of tube supplies
Message-ID: <Pine.SUN.3.95.961220081157.916A-100000@cln>

Hi all...Merry Christmas...a ham in our area is starting up a new store
specializing in antique radios and also tube stuff (ham oriented)...maybe
someone could repost this to the BA reflector, he has some military stuff
also...
Stan VE7SKT

Western Wireless Company:
112C Van Horne St.,"5th Ave. Plaza"
(Box 398 Cranbrook, B.C. V1C 4H9 Canada)
Tel/Fax 250-489-5874
Cliff Blakey
VE7WWC
[email-masked]
Please visit our "Antique Radio Store"
at:
http://www.cyberlink.bc.ca/~cblakey/
Preserving Yesterday's Wireless Heritage.

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

End of GLOWBUGS Digest 388
**************************