Description
The Soviet tube 12J1L (12Zh1L) is a high-frequency universal pentode with a short characteristic, designed to operate in all stages of receiving devices in the frequency range up to 200MHz, as well as in the output stages of low-power amplifiers and in HF master oscillators. Produced in a glass design on a flat leg in an aluminum case-screen.
8-pin with a key in a special lock.
Technical specifications:
- Heating voltage: 12.6V
- Filament current: 75 ± 15mA
- Anode current: 2.35 ± 0.95mA
- Anode current at the beginning of the characteristic: <100uA
- Anode voltage: 150V
- Voltage of the second grid: 75V
- Third grid voltage: 0V
- The voltage on the first grid is constant: -2.1V
- Second grid current: 0.55 ± 0.35mA
- Anode current: 6.8 ± 2.1mA
- Slope: 1.65 ± 0.45mA/V
- Output power: 0.5W
- Permeability in triode inclusion: 5%
- Electronic current cutoff voltage of the first grid: (negative) 0.6 ± 0.6V
- Internal resistance: more than 0.8MOhm
- Equivalent resistance of intralamp noise: 4.5kOhm
- Input capacitanc:e 3.7 ± 0.3pF
- Output capacitance: 4.0 ± 0.35pF
- Through capacitance: less than 0.007pF
- Anode-cathode capacitance: less than 0.007pF
The minimum operating time is not less than 3000 hours.
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