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PCF801Sensibly equivalent¶ to:8GJ7See also:
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The PCF801 is a VHF television mixer oscillator. Triode pentode combinations worked better at high frequencies than hexode mixers.As the PCF801 was designed for use in the dual standard sets of the mid 1960s the vari-μ pentode can also be employed as an IF amplifier following the UHF tuner.In the UK BBC2 opened in April 1964 as a 625 line transmission on UHF (470 - 860 MHz) totally incompatible with the 405 line BBC1 and ITV programs on VHF. Dual standard sets had a long slide switch that changed the circuit configuration between the two standards.The triode is small compared to the pentode on the right. The top mica looks to be double thickness.The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins, is 41 mm tall.Reference: Data-sheet. Type PCF801 was first introduced in 1963. See also 1963 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | k,g3,s | g1(t) | k,g3,s | h | h | a | g2 | a(t) | g1(t) |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | ra | gm |
| 8.5 | 0.3 | 175 | 120 | -1.4 | 10 | 3.0 | 0.35M | 5.0 |
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Absolute Maximum Operating Conditions¶
| Va | mAa |
| 60 | 12 |
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Updated July 23, 2021.
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