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CV1104Sensibly equivalent¶ to:See also:
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The CV1104 transmitting beam tetrode was a pre-WWII HF design the PT15. This exhibit is a genuine M-OV built PT15 but of 1950s manufacture, whereas exhibit PT15 is of 1940s vintage. The most obvious differences are in the style of labelling.The valve has a directly heated oxide cathode.The box anode is clearly visible as is the glass pinch construction.G3JLZ reports: in the transmitter type T1154, a pair of VT104's were used in parallel in the RF power amplifier stage. The PA was suppressor-grid modulated for AM and MCW.The wide glass tube envelope is 48 mm in diameter and, excluding the B5 base pins, is 171 mm tall.References: Data-sheet, private communication & . |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | tc | g2 | g1 | f | f | g3 | a |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | mAs | Pdriv | Pout | Pdiss | freq |
| 6.0 | 1.3 | 1000 | 300 | -70 | 80 | 23 | 0.7W | 60W | 30W | 20MHz |
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Updated February 25, 2017.
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