Re: MuTek Pre-amps for the FT290R
In the case of my mk1 FT290R the Mutek board is just a little PCB of size approximately 50mm x 35mm. It contains a small TR relay and a dual gate Mosfet amplifier. There is also a tuned circuit at the input to the Mosfet and a simple lumped BPF at the output. Just after the Mosfet there is also a tiny series trimmer resistor that is part of a resistive pi attenuator that can be used to vary the overall gain.
__________________
Regards, Jeremy G0HZU
|