Does anyone know what voltage the Plug Top power supply for the BT Robin (Machine ,Answering & Recording No 202A)
http://www.britishtelephones.com/ansr202a.htm, introduced in 1985, used?
I've just found one at home (as you do!) but no PSU
As usual with a lot of BT equipment, there is no mention on any labels on it, of the required voltage.