1220-A1

The General Radio 1220-A1 Unit Klystron Oscillator was introduced in 1956 Catalog O and remained available through Catalog S 1965.

The Type 1220-A1 is part of the Unit Klystron Oscillator series and supplied with a Raytheon 726C Klystron. Its frequency range is 2700-2960 MHz with 100 mW output. See below for the Raytheon data sheet. For more information see the 1220-A.

Specifications

• Frequency Range: 2700-2960 MHz.
• Output Power: 100 mW.
• Modulation Internal: Internal 1 kHz square wave, adjustable within +15 Hz.
• Modulation External: External square wave, 50 Hz to 200 kHz; sine or square-wave modulating signal of at least 15 V rms required.
• Modulation FM: at least 15 MHz excursion obtainable with less than 3 dB change in output; at 60 Hz, on rms input of about 10 V is suitable.

Links

• Experimenter describing Type 1220-A March 1956
• Raytheon 726C Klystron Data Sheet 1963

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