650-P1

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The General Radio 650-P1 Oscillator-Amplifier was introduced in Catalog L (1948) and remained available through Catalog O (1956).

General Radio 650-P1
Oscillator-Amplifier
General Radio 650-P1 Oscillator-Amplifier

Available from 1948 to 1956

Manuals
Catalog History
 Document Year Page
Catalog L 1948 78
Catalog M 1951 73
Catalog N 1954 91
Catalog O 1956 29
(All manuals in PDF format unless noted otherwise)

The Type 650-P1 is an accessory oscillator and amplifier for the Type 650-A Impedance Bridge. Its designed to fit into the empty battery compartment of the bridge. It provides a DC potential and 1 kHz generator for bridge measurements. A built-in amplifier is available for AC detector use. Amplifier gain is variable and a choice of tuned 1 kHz or flat frequency response. The 1 kHz generator output has a variable control.

  • Caution: The DC output terminals have at least 185 V available and are uninsulated!


Specifications

  • Oscillator
  • Frequency: 1 kHz ±1%
  • Harmonics: less than 4% at full output
  • Open-Circuit Voltage: 10 to 15 V
  • Internal Impedance: 2000 Ω
  • Amplifier:
  • Voltage Gain: 45 dB
  • Selectivity: approximately 15 dB attenuation to second harmonic when tuned to 1 kHz
  • DC Output:
  • Open circuit voltage: 185 V, approximately
  • Internal Resistance: 23 kΩ

Links


Photos