wrote in message
...
On Fri, 27 Jul 2007 01:43:09 -0700, Clayton wrote:

Hi,
I am looking for some plans for a simple(beginners) 20 Meter SSB Tube
Transceiver and was wondering if somebody had any good plans or web
site they could point me to?

Any help would be greatly Appreciated
Thank You

Radio Amateurs Handbook any copy printed between 1963 to 1970.
Also back issues of QST for that era.

A tube TRX for SSB will minimally be around 11 tubes or more and not
simple.
"Just finding items like the power transformer will be a challenge."

NOPE, that is urban legend BS or must be working for a Far East exporter
(Purpose of the "weak dollar" is to strengthen these mfg. in world market -
not kill them).

Just in greater Chicago area there are at least 3 major mfg. that have been
around for 75+ years -- and turning out hundreds a day plus custom requests.
Triode Electronics JUST handles the Dynaco rebuild requests -- they are
providing brand new units exceeding original 1950 specifications (better
materials and mfg facilities)
http://www.triodeelectronics.com/

Heyboer - Grand Rapids, MI
http://www.heyboertransformers.com/index.shtml

Heyboer also handles the profesional musicians/bands/professional
restorers/audiphile market -- that still use vacuum tubes for that soft warm
sound!
http://www.heyboertransformers.com/tubeamps.shtml

There are a LARGE number of US transformer manufacturers -- USE the GOOGLE
with the Internet!!

If you can find an old Heathkit HW32 (Monobander SSB series) and
rebuild it that might work better.

Yes, that is a viable solution for a tube based radio. A solid state design
is also possible.

gb

"Michael Black" wrote in message
...
"Uncle Peter" ) writes:
wrote in message
...
On Fri, 27 Jul 2007 01:43:09 -0700, Clayton wrote:
A different way of dual use, without the bilateral stages, is to have
a balanced mixer, the filter, IF strip, and then a balanced mixer. By
using broadband mixers, the first stage is either the receiver mixer,
or the balanced modulator for the transmitter. Then the balanced mixer
at the output of the IF stage is the product detector on receive, and
the conversion mixer on the transmit. The signals all go down the
strip in the same direction, and relatively little switching is needed.


I did that with a small solid state transceiver for 160 and 80 meters. The
mixers were DBMs. I think I wrote up the bilateral IF for Ham Radio,
but never got around to publishing the entire project..

One of those ARRL SSB manuals had such a transceiver, nice and small,
albeit with transistors.

I think that may have been the rig by Benjamin Vester (if my memory hasn't
messed up his name!) That was a cute project that always fascinated me.
At the time I was in my early teens and didn't have the skills to duplicate
it. Late 50s or early 60s IIRC.


Though, I seem to recall there was a transceiver made out of subminiature
tubes in the late fifties or early sixties. Unless I'm confusing it
with something else, it was in the Bill Orr Handbook.



I'd like to look that one up for a read if your ever recall where it
appeared!!


Michael VE2BVW


73

Pete k1zjh

"Uncle Peter" ) writes:

One of those ARRL SSB manuals had such a transceiver, nice and small,
albeit with transistors.

I think that may have been the rig by Benjamin Vester (if my memory hasn't
messed up his name!) That was a cute project that always fascinated me.
At the time I was in my early teens and didn't have the skills to duplicate
it. Late 50s or early 60s IIRC.

That's it. It's in both the fourth and fifth editions of the SSB Manual.
Looking now, I see that it is listed as originally in QST for June 1959,
which seems terribly early. It looks like something that would have
been published in the mid-sixties.

What's surprising is how small it is. That sort of construction is
hard in itself, but at a time when people were still just getting
close to transistors it becomes amazing.


Though, I seem to recall there was a transceiver made out of subminiature
tubes in the late fifties or early sixties. Unless I'm confusing it
with something else, it was in the Bill Orr Handbook.



I'd like to look that one up for a read if your ever recall where it
appeared!!

I was vague about that because I'm not sure what I'm remembering. There
was an article in CQ about the "Argonaut", I think in the early sixties
but maybe late fifties, about this miniature SSB transmitter or transceiver,
and the DXpedition it went on (so maybe it was just a transmitter, to
get some new countries on the air on SSB, where there'd already be
receivers). It wasn't a construction article, but the intro mentioned the
consctruction details were published elsewhere. Either in the Bill Orr
Handbook, or the "Editors and Engineers" SSB handbook (which were either
Howard W. Sams, or would a tad later be engulfed by Sams).

But I'm not sure if that had subminiature tubes or not. Thinking about
it now, such a rig seems vaguely familiar, so maybe I did see the book it
was in at the Library in the early seventies when I started reading such
things. THere definitely is some memory that is stronger than that CQ
article, but I don't know what.

Michael VE2BVW

Thanks Everyone,
I'm not new to working with tubes just putting something together this
size is a bit daunting...
Tubes and crystals are not a problem either,I have plenty of both.

I'll look over all of your posts a bit closer and see what I can work
out.

I Appreciate the help Guys
Thank You

On Jul 28, 9:48 am, wrote:
On Sat, 28 Jul 2007 00:17:04 GMT, Yukio YANO wrote:
Clayton wrote:
Hi,
I am looking for some plans for a simple(beginners) 20 Meter SSB Tube
Transceiver and was wondering if somebody had any good plans or web
site they could point me to?

Any help would be greatly Appreciated
Thank You

Why not re-work a 10 Meter(CB) SSB), Re-Tune the Rx. Front-end for 20
Meters, Use the 10 meter Tx as an Exciter to drive a 20 Meter Final.

This way 85% of the design work has already been done and tested !

I've done that, the intermod is terrible in most CB rigs. After
scrapping most of the RX frontend was it brought to the decent level.

Are you out to prove a point, or want a working rig ?? Tubes have been
obsolete for fifty years !! Why else would you attempt to build a
Sideband rig using parts that have been out of production for several
generations. If you are going to wind coils and Rf transformers why not
wind them for transistor stages. Transistor Rigs (CB) are CHEAP. Tube
type rigs have long been relegated to the Scrap Heap.

First it's under 40 years since the last of the new production tube
rigs.

The HW-101 (OK, it had a couple semiconductors in it but I won't hold
it against it, it's still a "tube rig") was still for sale by Heathkit
up till 1980 or so.

That'd be 27 years ago.

Tim.