Two QRP questions, one easy, the other, tricky...
OK OK boys... yes I know 2n2222's are wonderful and plentiful, but I
have a heap of geriatric bipolar power transistor I thought it might
be worth experimenting with:-
2n3055 (three)
2n3054 (four)
2n3739 (two)
2n4800 (one)
Sony D292 U38 (two)
Sony 2sc895 (one)
I thought if you can get anything up to 500mW with a general purpose
NPN, then what can you get out of an old power transistor?
I also have a load of BD139 medium-power transistors...?
Any thoughts?
In addition, I am still looking for the COMPONENT LAYOUT for the PCB
for a QRP
transmitter called "little joe" described in 9-81 in QST. I am not
looking for just the circuit diagram but where the parts GO on the
PCB!
Stephen G7VFY
07956-544202
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