danw wrote:
I have a very old Peugeot 205. I've had a couple of stereos in it and
ocasionally they loose all the preset radio stations.

This is, I think, is becuase the stereo is loosing power. This happens,
sometimes, when I start the car. The engine turns over once. Stops.
Then, when I retry, it starts without a problem. I very rarely have any
problems starting the car. Just this slight hiccup now and again.

Sounds like your battery and/or wiring is on the way out. The radio
needs about 12v ish all the time to save the presets. If when starting
the voltage is dropping much lower than that then that'll be your
problem.

John