Received my second kit this morning....thanks Hans
I had a box ready prepared for it.
This large box is designed so I can tinker with things like
filters power supplies and PA stages hence the roomy interior.
MK1 test bed is using a separate PA stage (no FETs on the kit board).
Driven from the DDR, this PA transistor gives me the output powers
shown scribbled in the circuit diagram.
I'm going to add a drive pot so I can set the output on all bands to
say 200mW or whatever.
This PA can drive a simple IRF510 to 3 or 4 watts if needed.
The kit board switches a relay which switches the 12 volt supply to the
PA when in transmit..
Using external switchable LP filter box...
Rear panel has a 5 pin DIN socket for the external GPS module....
Much fun tinkering to come :)
Photos in this link...
Philip G4JVF
