The 8A8 is from the era of VHF Band III television in the mid 1950's. The valve is a triode pentode, with separate cathodes, designed to function as a mixer and oscillator in the tuner or …

Tube 8A8 or Röhre 8A8 ID5139, Triode-Pentode, Noval, 9 pin miniature (USA pico-9) B9A and Frequency converter shown. Radio tubes are valves.

2017年3月10日 · 苏联早期电子管型号无甚规律可循，开头СО-、СБ-、УО-、УБ-这样地写，可能与用途相关（带栅极的电子管或整流管，电池式或交流式），后面跟两到三位数字，按照定型 …

The thin glass tube envelope is 20 mm in diameter and, excluding the B9A base pins, is 49 mm tall. References: Data-sheet & 1040. Type PCF80 was first introduced in 1953. See also 1953 …

Tube- 231 : 8A8 Tube- 232 : 6CL8A Tube- 233 : 9JW8 Tube- 234 : 5CL8A Tube- 235 : 6FV8A Tube- 236 : 8B8 Tube- 237 : 6LX8 Tube- 238 : 6LN8 Tube- 239 : 6GH8A

9 pin miniature type medium-mu triode, sharp cutoff pentode used as combined oscillator and mixer tube in vhf television receivers.

2009年8月24日 · 9u8 8a8 9u8 9a8 9u8 9ea8 9u8 9u8a 9u8 pcf82 9u8a 9u8 9v9 pch200 a1834 6as7g a2521 6cr4 a2900 12at7 a61 17z3 a677 6c6 a863 6j7gt aa91e 5726 abc91 12a6 ad …

2024年6月17日 · Excellent communication, beautiful TT, on the spot description. Would most definitely buy from again. Two thumbs up, highly recommend.

三五極複合管。プレート電圧が低い、もともとTV用の球であるのを知ったのは後年のこと。5極出力部を三結にしても比較的出力が落ちない。ヒーターの電圧違いで、8A8、16A8、32A8 …

Home Resources References Tubes Forums Links Support Sale Tube Substitutions for: 8A8 Triode-Pentode. Type Substitutes Base Diagram; 8A8: 9A8, 9EA8, 9U8, 9U8A: Web …