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Tube Types



Select or type a tube name to get its specific information.

Sort columns values by clicking their titles - A → Z or Z → A

Tube Base Pin Device Structure
1203 / 1203A High Frequency Diode
1204 UHF Pentode
121VP ?
1221 1h,2p,3g2,4g3,5k,6h,||g1 Pentode
1231 Pentode
1232 Sharp-Cutoff Pentode
1237 ?
1267 Voltage-Regulator
1273 ?
1274 ?
1275 1f,2p,3p,4f Full-Wave
1280 ?
1282 ?
1284 UHF Pentode
1285 ?
1291 UHF Medium-Mu Twin Triode
1293 UHF Medium-Mu Triode
1294 UHF Diode
1299 UHF Tetrode
12A 1f,2p,3g,4f Triode Detector Amplifier


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Last modified: Jun 5, 2026 20:40
Cape Old Radio - Since Nov, 1996
1996 - 2026 © Carlos Eduardo Lazarini da Fonseca