Alcatel FA101 Cold Cathode Penning Vacuum Gauge Pressure Instrument System

Pfeiffer Vacuum PTR25500 Compact Cold Cathode Ionization Gauge IKR 251

CRT RCA Solid State oscilloscope WO-535a test dual mode cathode ray tube

Alcatel Lucent 622-9203-002 UM-62X-2 Local Oscillator GREET USED.

Cathode Ray T Scale Glass Replacement Plate P/N 34-37931B01 NSN: 6625008278042

Vintage Tektronix Tastkopf CATHODE-FOLLOWER PROBE + 5x Attenuator

Cathode Ray Scale Clifton Precision NSN 6625-00-827-8042

Granville-Phillips 275 Convectron & Varian 525 Cold Cathode Vacuum Gauges AS IS