1025-A
The General Radio 1025-A Sweep Frequency Generator was introduced in 1963 Catalog R and remained available through Catalog T 1968.
Specifications
- Frequency Range: 0.7 to 230 MHz in 10 ranges plus bandspread ranges.
- Calibration Accuracy: At output voltages less than 0.3 volt, frequency is indicated to within +0.5%.
- Drift: Not greater than 0.3% for five hours after one-hour warmup.
- Sweeping Rate: 22.2 milliseconds 20 times per second.
Links
Photos
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Sweep Motor Upper Power Supply Lower
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200 V regulator (A5)
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Power Supply
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Top Side of A4 board
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Top Side of A3 board
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Attenuator
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-150 V regulator and meter circuit (A3)
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Automatic amplitude-control amplifier (A4)
