Equipment modifications needed

The old TS 120S is drifting in response to temperature changes in the room. There is a mod to improve frequency stability, which involves changing to capacitors in the VFO. I must get onto this!

Audio feed from PC to mic of TS120S needs to be modified as the input impedance appears to be a mismatch requiring lots of audio drive. As a result of the above I am receiving and reporting only until I get these mods done.