[Clegg] Looking for some Clegg information.
Frank Grosso
k2mlb at aol.com
Tue Jul 27 21:52:16 EDT 2010
Hello Gene,
I had a Model 209 and thought you might be interested in hearing more
about it.
The Model 209 Crystiplexer was the frequency control component of the
Climaster 250 Series, which was a 250 watt transmitter. The rack
mounted component system included a Model 209, a Model 250 RF Amplifier,
and a Model 250 Modulator/Power Supply.
The 209 was an extremely interesting an innovative design for its day.
It predated solid state frequency synthesizers and had 15 tubes and 14
crystals in a unique circuit that provided crystal stability, and
digital readout with VFO flexibility. There were four small aluminum
frequency control knobs with engraved numbers in a row across the front
panel. The first one to the left was graduated with 1 MC markings from
50 to 54, the second in 100 KC steps, the third in10 KC steps and the
fourth was marked from 1 to 10. The first three knobs had detent stops
at each number and the KC knob was a variable vernier control. So for
instance to set your frequency to 50.125 MC, you would turn the first
knob to 50, the second to 100, the third to 20 and the vernier to 5.
Since the last knob was marked in single KC digits it had frequency
readout of 1/2 KC. This was pretty amazing back in a day when only a
Collins 75 series receiver had a dial readout as accurate as 1 KC, and
was especially so when you consider that the Clegg was doing this on VHF
frequencies where stability was even more difficult to achieve.
In addition the 209 provided metering of transmitter functions including
RF output, transmitter control of push-to-talk on AM, break-in on CW,
and CW sidetone.
There were three RF Amplifier Decks available, a Model 250-6 for 6
meters, a 250-2 for 2 meters and a 250-1/4 for 220 MHz. The amp had a
4X250B in the final, 300 watts input on cw, 250 watts on AM, and put out
over 180 watts on AM.
The Model 250-M was the combination modulator/power supply and had high
level plate-screen modulation with a clipper filter.
The units all had standard 19" wide rack front panels and were mounted
in an attractive gray hammertone finish Bud Metal Cabinet.
To the best of my knowledge only five 250 Climasters were ever made.
One was of course owned by Ed Clegg, and three others by W2UK, K2RRG,
and myself K2MLB. Of interest on the users; of course we all know of Ed
Clegg so that needs no explanation, W2UK was Tommy Thompson of great VHF
fame who made the first Hawaii to mainland California 2 meter contact as
KH6UK, and K2RRG was Bob Morrison a very well known 6 meter operator who
made the first NJ to Hawaii contact on 6 meters. Ed Clegg and I went to
dinner with Bob the night of the KH6 contact and Bob was happily decked
out in Hawaiian flower shirt to celebrate the occasion. I never knew
what happened to the fifth one. I don't believe it was ever sold to
another ham, and the last I recall it was still at the factory being
used for upgrade and prototype development.
As far as the question on the 600 series, it was intended to be a
followup to the 250 series having a pair of 4x250B's or some other tube
lineup to put it in the 600 watt class. Time wise, the engineering
drawings and schematics show a design date in late 1959.
Ed Clegg was a great friend and wonderful ham, and his equipment and
designs in the VHF area fully deserve merit and attention. I appreciate
your interest in his products and hope some of this information has been
helpful.
Sincerely,
Frank Grosso
K2MLB
On 7/27/2010 1:59 PM, manualman at juno.com wrote:
> This list looks similar to the list that was floating around various
> reflectors back in the 90's.
>
> Never heard of a Clegg 209 Crystiplexer. Clegg introduced the
> crystiplexer design with the Clegg FM-27A and FM-27B 2 meter FM
> transceivers. Most, if not all, of Clegg's 2 meter FM rigs were made by
> Midland. Note: on several schematics and layout drawings for the Clegg
> FM-27B, in the title box (lower right corner), the phrase "250 series and
> up" or "250th unit and up" appeared. These drawings were not part of the
> FM-27B manual. Also during this time, Clegg was known as the Clegg
> Division of International Signal and Control Corp.
>
> As far as "600-Series", the Apollo linear amplifier originally was going
> to be called Apollo 600; further refinement of the circuitry rolled the
> name to Apollo 700. There were some early product brochures and ads that
> said Apollo 700. The "600" and "700" identified the PEP output. Final
> production changed the name to just Apollo Six. All used the same tubes.
>
> As far as the "250-6C", never heard of it.
>
> Seems to me I remember prior to Clegg becoming well known to amateur
> products, he was envolved/owned/part of/etc. with a company that was
> called Transistor Specialties or something like that. Maybe some of these
> model numbers came from that area.
>
> Pete, wa2cwa
>
>
> On Mon, 26 Jul 2010 16:54:28 -0700 "MUCHSTUFF"<soundval at muchstuff.com>
> writes:
>
>> Specifically, I am wanting the following Clegg information.
>>
>> 209 Crystiplexer When was it first introduced? What is the tube
>> lineup?
>> Is it a transmitter or Transceiver? Can
>> anyone
>> give me a picture with proper authorization to publish.
>> 250- Series. What is the Tube lineup? When were they introduced?
>> Can anyone give me a picture with proper
>> authorization
>> to publish.
>> 600- series What is the tube lineup? When were they introduced?
>> Can anyone give me a picture with proper
>> authorization
>> to publish.
>> 250-6C What is the tube lineup? When were they introduced?
>> Can anyone give me a picture with proper
>> authorization
>> to publish.
>>
>>
>> Gene Rippen, WB6SZS
>>
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