GS12D Ericsson Bidirectional double-pulse duodecal, (12-position), counting/selector tube, Neon filled, Dekatron,

B12A, MCMURDO, CRT BASE, VALVE BASE, NOS, FOR, DG7-32, GN-5, CV535, AND OTHERS, EX EQUIPT

B12A, MCMURDO, CRT BASE, VALVE BASE, NOS, FOR, DG7-32, GN-5, CV535, AND OTHERS, EX EQUIPT

CV2271, GC10B, Hivac, Ruislp - Ericsson, divide by 10 counter, 4,000 pulses per second, , Z303C, May 1966 Production

CV378, MILITARY SPEC GZ37, MULLARD, MITCHAM PRODUCTION, APRIL 1964, WHITE PRINT, BOTH MILITARY CARTOUCHE AND CIVI WHITE OLD SHIELD MARKINGS

CV378, MILITARY SPEC GZ37, MULLARD, MITCHAM PRODUCTION, JANUARY 1964, WHITE PRINT, BOTH MILITARY CARTOUCHE AND CIVI WHITE OLD SHIELD MARKINGS