WINDSOR MODEL 45B VALVE TESTER
TAYLOR ELECTRICAL INSTRUMENTS LTD. SLOUGH, BUCKS, ENGLAND.
I have now (1998/1/14) instruction manual and circuit diagram of Windsor Model 45C, which functionally is close enough to 45B. Thanks to Stein.
NEW (1998/10/18): Instruction manual is here.
email: old.stuff at <this domain>
1997/12/10