Speaking of which, the short-lived Mark I version used

LK1 keyboard, LP1 typing unit, LMU1 motor, LESU1 control

The Mark II series started with

LK3 keyboard, LP3 typing unit, LMU3 motor, LESU3 control

So, where are LK2, LP2, LMU2, LESU2 ??

Nick England K4NYW
www.navy-radio.com