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Homebrew 2m (and maybe 70cm) linear (solid state, 20~30W)
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) |
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