1192-B
The General Radio 1192-B Counter was introduced in Catalog 1973 and remained available through Catalog 1978.
The Type 1192-B is an electronic digital counter with an upper limit of 50 MHz, designed to measure frequency, period, frequency ratio, or time interval, or count events. The 1192-B is an updated version of the 1192 with its maximum frequency increased from 32 MHz to 50 MHz.
The instrument has two inputs − the A or main input is located on the front panel, the B input on the rear of the instrument. The A input features a three-step attenuator and a variable trigger control with maximum frequency of 50 MHz. The B input is used for ratio measurements, or the insertion of an external time base. This input has fixed trigger level and attenuation, and a 10 MHz frequency limit. Also located on the rear panel are start and stop inputs that complement the front panel start/stop push buttons for event counting. A front panel "test" push button is available for testing the logic, it does not check calibration. The time base calibration is accessible through a hole in the bottom of the case.
The counter was available in 5, 6, or 7 digit models. An optional accessory card buffered the display and made data outputs available at the rear panel.
The Type 1157-B 500 MHz Scaler was available to raise the counter frequency to 500 MHz. An optional cabinet housing both the 1157-B scaler and an 1192 counter was available as Type 1192-Z.
Specifications
- Frequency Measurements: DC to 50 MHz
- Period Resolution: 0.1 μs
- Time Interval Resolution: 0.1 μs
- Impedance: 50 Ω // 27 pF channel A; 10 kΩ // 20 pF channel B
Links
Photos
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100 kHz Test
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Time-Base Calibration Adjustment
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1192-Z
