One of the most commonly found driver tubes found in push-pull vacuum tube audio power amplifiers is the 12AU7 preamp tube. As well, this tube's low gain make it a great choice for …

Tube Depot carries a selection of 12AU7 / ECC82 / CV4003 / 5814A Pre Amp Vacuum Tubes. New & NOS tubes from Tung-Sol, Electro-Harmonix, JJ & more!

The 12AU7 and its variants are miniature nine-pin (B9A base) medium-gain dual- triode vacuum tubes. It belongs to a large family of dual-triode vacuum tubes which share the same pinout …

Tube 12AU7A or Röhre 12AU7A ID5285, Double Triode, Noval, 9 pin miniature (USA pico-9) B9A and Universal shown. Radio tubes are valves.

2009年8月4日 · 2、EH 12AU7A：噪声比曙光稍大一点点，尤其热管需时较长，管子在通电后1分钟以内会出现有类似冒水泡的“卜卜”声响，热管一分钟后问题消失，无明显话筒效应，手敲机 …

A medium-gain dual/single triode with the lowest gain factor amongst all commonly used preamplifier tubes, the 12AU7 has several names for identical variants. 12AU7 is used for this …

The Electro-Harmonix 12AU7A / ECC82 preamp tube is a brand new vacuum tube that is made in Russia. It is a premium quality 12AU7 tube built to match the performance of the military …

The Electro-Harmonix 12AU7A / ECC82 Gold vacuum tubes are a gold-plated pin version of their very popular preamp tube. It is a premium quality 12AU7 tube built to match the performance …

The PHILIPS 5814A (12AU7A) before 1980 labelled Sylvania, is a US mil.spec version of the 12AU7 of highest quality and reliability standard. The 5814A is an excellent mil.grade audio …

The 1960s RCA 12AU7A tubes in this precisely matched pair have long gray plates, side getters, and clear tops. The red print on the glass has the RCA logo. Both tubes test as new with low …