I happened to be working on an MKARS80 which is a variant on the BitX.? I realised that this rig uses a Pic 16f818 as a frequency counter with LCD readout and it generates a huff n puff voltage.
If you are capable with Pics it may be worth checking out for use with the new board to give a readout and stabilise the vfo.
Code and circuit diagram are here ;
Rob
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| | | | MKARS80
Transceiver kit The MAKRS80 is a QRP transceiver designed for use
for use on the 80M band, the circuit was developed from the
BITX20
designe... | |
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