
Featured VT: The 6BQ7 - diyAudio
2013年1月19日 · The 6BQ7A is a miniature, medium-u, twin triode primarily designed for use as a cascode radio frequency amplifier in very high frequency TV tuners. In this application, its performance is characterized by low noise figures and high gain.
EL86 / 6CW5 + 6BQ7A amp design - diyAudio
Some 6BQ7's can be rather microphonic in a guitar amp but some are OK. 4 stages is not excessive gain either. There is a $100 guitar amp design challenge on this forum. One of my designs started out as a "18 watt Lite" with 6BQ7's and 6CW5's. it now uses a series string heater circuit to fit in the $100 budget.
6BQ7A, Tube 6BQ7A; Röhre 6BQ7A ID3815, Double Triode
Low-noise grounded grid RF amplifier. Replaced the 6BQ7 within 2 years of the 6BQ7 announcement. It has some 12% higher gain, the characteristics are otherwise the same.
EL86 / 6CW5 + 6BQ7A amp design | Page 2 | diyAudio
2011年10月23日 · I read in many places that an EL86 can fit on amp designed for EL84, with small adjustments. I took the 18W and i´m trying to adapt to EL86... If you have a better solution, please let me know.
SRPP TEST 6BQ7A - 真空管アンプ製作
2020年10月3日 · 6BQ7Aはこの1kΩ抵抗値を使う場合が多い。 上記からするとカソードチョークの効果は大きく歪率が低く抑えられ最大出力も大きくなる。 実際にアンプに使用した場合、この効果が期待できそうである。 SRPP TEST 6BQ7A テストの概要 私はSRPP回路を好んで使います、かつて特性テストをしたことがありますが、ヤフーブログの廃止に伴って消えてしまいました。 そしてついこの間、オーディオ友の花岡氏がお見えになり、ダブル巻きシングルアン …
いとしの真空管たち - hp1.server-shared.com
6R-HH2は、高周波増幅用双3極管 6BQ7A を元に、東芝が1958~1959年頃(S・33年頃)にテレビチューナーのカスコード接続RF-Ampを目的として改造開発した球で、多くは混合発振管 6M-HH3 とコンビで使用されました。 ベース接続は 6BQ7A と同じ、管内電極構造も同様と思われますが、最大定格とgmが異なると同時に、カスコード接続時には各ユニットの電圧配分も違い、互換性は考慮されておりません (写真は東芝製) 6BQ7A が1952~1956年頃には国内 外 共 …
6BQ7A Cathode Follower | Audiokarma Home Audio Stereo …
2024年9月9日 · I'm finalizing the design of a RCA-type phono preamp with a cathode follower at both outputs. After reviewing several different tubes for this, the 6BQ7A seems to be a winner. Among other things, it exhibits reasonable filament draw, good transconductance and an HK rating of 300V with the cathode positive.
6BQ7A @ The Valve Museum
The 6BQ7A is an all glass miniature VHF double triode and is internally screened. A valve like this would be used for RF amplification, or frequency multiplication. In the latter case the valve is operated as a non-linear (Class C) amplifier. This causes harmonics of the signal frequency to appear in the anode current.
6BQ7, Tube 6BQ7; Röhre 6BQ7 ID3812, Double Triode
Tube 6BQ7 or Röhre 6BQ7 ID3812, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and VHF shown. Radio tubes are valves.
Vacuum Tube - 6BQ7A / 6BZ7, Dual Triode | Antique Electronic …
The 6BQ7A is a miniature, medium-mu twin triode primarily designed for use as a cascode, radio-frequency amplifier in very high frequency television tuners. In this application, its performance is characterized by high gain and low noise figure. An internal shield provides isolation between the two triode sections.
- 评论数: 2
- 某些结果已被删除