M1 - Signal Generators and Frequency Meters
Advance, GB B4A5 Signal generator, 100 kHz to 80 MHz, AM / CW
General Radio, USA 805-C Standard signal generator, 16 kHz to 50 MHz
General Radio, USA 1390-B Random noise generator
Heath, USA AG-9A Audio sine-wave oscillator
Hewlett-Packard, USA 200CD Audio sine-wave oscillator
Hewlett-Packard, USA 202A Low-frequency function generator
Hewlett-Packard, USA 205 AG Audio sine-wave oscillator
Hewlett-Packard, USA 214A Pulse generator
Hewlett-Packard, USA 606A Signal generator, 50 kHz to 65 MHz, AM / CW
Hewlett-Packard, USA 5245L Frequency meter, Nixie display
Hewlett-Packard, USA 5257A Transfer oscillator plug-in
Hewlett-Packard, USA 5260A Automatic sampling prescaler, 12 GHz
Hewlett-Packard, USA 5262A Time interval plug-in
Hewlett-Packard, USA 5267A Time interval plug-in
Hewlett-Packard, USA 8616A Signal generator, 1.8 to 4.5 GHz
Lael, Italy 145C RF signal generator
Marconi, GB TF801A RF signal generator
Measurements. USA 65-B Standard signal generator, 75 kHz to 30 MHz
Mial, Italy 145 RF signal generator
Military FR-4/U p of AN/URM-79 Heterodyne frequency meter, 100 kHz to 20 MHz
Military FR-6/U Frequency meter, part of AN/URM-81, 100 to 500 MHz
Military FR-159/USM-169 Heterodyne frequency meter, solid-state version of BC-221
Military AN/URM-25, URM-25-D RF signal generator, 10 kHz to 50 MHz
Military AN/URM-26, URM-26-B RF signal generator, 4 to 405 MHz
Military BC-221 Frequency meter, part of SCR-211, 125 kHz to 20 MHz Different models available
Military FR-114/U Trochotron frequency meter, part of AN/TSM-16
Military I-72 RF signal generator, 100 kHz to 32 MHz
Military I-129-B Frequency meter set, absorption type
Military I-208 FM signal generator, 1944
Military SG-24 / TRM-3 Sweep Generator, 15 to 400 MHz
Military TS-47 / APR RF signal generator, 40 to 500 MHz
Military TS-147-D/UP X-band analyzer, frequency and power meter
Military TS-174B/U VHF heterodyne frequency meter
Military TS-413C/U RF signal generator, 75 kHz to 40 MHz
Military TS-418B/U RF signal generator, 400 to 1000 MHz
Military TS-541A/TPS X-band analyzer, frequency and power meter
Polarad, USA 1108A Signal generator, 6.95 to 11 GHz
Tektronix, USA 284 Pulse generator, 70 ps risetime
Unknown, USA Trochotron counter Trochotron 6-digit counter