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Old August 10th 09, 09:48 PM
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First recorded activity by RadioBanter: Aug 2009
Posts: 2
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Quote:
Originally Posted by Stuart Longland View Post
[Previously sent to rec.radio.amateur.equipment by mistake... resent
here]

Hi all,

I was wondering if anyone knew of a solid state 2m linear amp project
that I could build. I'm looking for no more than about 30W. It'll be
primarily used for FM, driven from my handheld radio. Bonus points if
it can do 70cm too (or at least allow pass-through unattenuated...).

Most of the designs I've seen are for tubes with an output power in
the KW-range... my radio license only allows me to transmit 30W FM or
100W SSB... so these are massive overkill (and not desirable for other
reasons).

The only project I've seen that fits the bill so far is
http://www.falara.org/tektalk/GPOAmp.html which calls for a PCB made
with G10 stock. I have no idea where to obtain that here in Brisbane,
I have some blank PCB, but have no idea what grade it is, or how much
impact on performance using it would have. The MRF1946A is also
difficult to source.

Does anyone know of a good project to start on this sort of thing?

Regards,
Stuart Longland (VK4MSL)
Stuart,

Unless you absolutely want the experience of building, you may (I don't know the situation in Australia) be able to find a used mobile 2m or 2m/70cm tranceiver for a reasonable price. My used Yaesu FT-2800M cost me 100 Canadian dollars. I had been thinking of buying an amp for my HT but discovered it is easier to simply buy a transceiver that gives me 25 watts along with 3 other power choices.

I hope the suggestion helps.

Robert VE2AGE
Gatineau, Quebec
Canada
 
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