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PCC189Sensibly equivalent¶ to:7ES8See also:
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The PCC189 is a low impedance high gain double triode. The technical specification specifically states that it is built with frame grids. The valves are variable μ types for use at RF as AGC controlled devices. The low voltage high current suggests a low noise design, probably as the front end stages in a television tuner. The low anode voltage suggests both stages used as a cascode (series connected) amplifier.Mullard describe the PCC189 as: a VHF variable-mu frame-grid cascode double triode.The thin glass tube envelope is 20 mm in diameter and excluding the B9A base pins it measures 47 mm tall.References: Data-sheet & 1040. Type PCC189 was first introduced in 1960. See also 1960 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |  a(2) | g1(2) | k(2) | h | h | a(1) | g1(1) | k(1) | s |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vg | mAa | ra | gm | 
| 7.6 | 0.3 | 90 | -1.4 | 15 | 2500 | 12.5 |
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Updated April 17, 2014.
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