The UCL83 is an audio voltage amplifier triode and an output pentode. The use would have been for post detector amplification and loudspeaker driving in broadcast receivers and small VHF televisions sets. The 100 mA heater is for use with series heater chains.The triode section is on the left with a gap to the pentode on the right. The copper support for the suppressor grid can be seen through the hole in the anode.The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 49 mm tall.Reference: Data-sheet & 1040. Type UCL83 was first introduced in 1955. See also 1955 adverts. |
Pin Connections
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | a(t) | g1(t) | k(t) | h | h | a | k,g3 | g2 | g1 |
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Absolute Maximum Operating Conditions¶
| Vh | Ah | Va | Vs | Vg | mAa | gm | μ |
| 38 | 0.1 | 170 | 170 | -9.5 | 30 | 5.5 | 10 |
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Absolute Maximum Operating Conditions¶
| Va | Vg | mAa | gm | μ |
| 170 | -1.5 | 1.6 | 2.1 | 82 |
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PDF scanned from an original document held by the museum |
Updated September 01, 2019.
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