Modifying MRF9180 board to RD100 with separate bias
Experiment failed — to much problems, but I decided to post it here anyway.
Метка: amplifiers
Finally — finished big LPF
1.2KW LPF
High pass filter for the LPF for MRFX1K80
My LPF board contains hight pass filter to split harmonics to the 50Ohm load, instead of returning it to the transistor. Measurements.
Test 2 stages 2 x BFG591 + 2 x RD15HVF (got 20w output)
Some measurements.
MRFX1K80H inside
Now we know whats inside:
Received coils and relays. (LPF)
But no wire 
Looks cool.
More RD16 amps :)
Was bored 
Paper QSL from Japan and some work.
Paper QSL and work on the 1.2KW LPF and amplifier controller.
48v cooler PWM control via arduino
Noise levels from that fan.
Just received some stuff
Flatpack2 3000 + photo of some big.amp. stuff