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CW Only, Tube Transceiver
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September 24th 03, 05:51 AM
Posts: n/a
On Wed, 24 Sep 2003 01:09:23 UTC,
(N2EY) wrote:
In article ,
(M Wilson) writes:
Can someone suggest a CW only, all tube tranceiver for me? Nothing
QRP, more like between 20 and 100 watts, no transmitter/receiver
separate boxes, and no SSB transmitting capability. I want glowing
tubes and CW, in one box (power supply, of course, on the side).
What you describe is what I've been seeking for 30+ years. There ain't none
made. So I built my own. Three of them, in fact. My latest one runs 100 watts
out on 80, 40, and 20, has RIT, cascaded 8 pole 500 Hz filters, beam deflection
mixer, no AGC, dial drive/capacitor from a BC-221, and lots more. The only
semiconductors are a pair of 1N34s in the SWR bridge.
807s in the final, 866As in the power supply....
The HW-16 comes close, but it is not a *true* transceiver - it's a transmitter
and receiver in one box with a common power supply. You have to re-zero the
external VFO every time you QSY.
73 de Jim, N2EY
Suppose you started with a Heathkit SB-101 (the 102 had a solid
state LMO), and removed the mike amp tube. It would be a CW only
tube transceiver, 2 6146's give you 100 Watts out.
You could cascade two Heathkit 400 Hz filters, using the space for
the SSB filter and just jumpering around the switch.
Relatively compact. 1 kHz readout, great stability. No RIT though.
You can probably buy a fixer for about $150.
--
de ah6gi/4
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