[JohnBHanson]

An annoying feature of this machine is that when playing back in mono only one channel of the radio out socket is used - thus it will only play through one channel of an attached stereo amplifier.

I have modified mine to take the signal from the high end of the playback volume control and sent it through an attenuator (divide by two, made from two 33k Ohm resistors in series). This gives a good line out on both channels. I removed the remote socket at the back and used a 7 pin din socket wired to carry this signal on pins 3/5 together with the normal radio input on pins 1,4 and gnd on pin 3. The remaining two pins were used for the tape pause and tape stop functions. This means that normal 5 pin din leads can be used to connect to an amplifier that incorporate a series resister. In addition it preserves the remote control function.

My amplifier does not have a mono switch.

I also built a switch box to automatically switch between two tape recorders - but that is another story.