Tube 1AD4 or Röhre 1AD4 ID4096, Vacuum Pentode, Subminiatur (wire-ends, flat) B5A and RF/IF-Stage shown. Radio tubes are valves.

1AD4 is a subminiature filament type, fully-shielded sharp-cutoff pentode valve (tube), designed for RF and AF applications in portable equipment. It has five wire leads that can be soldered onto a PCB directly, but can also be cut and inserted into a …

1AD4 was introduced in 1956 and is a Pentode. Our thanks to Frank Philipse and Mark Mallison for supplying data-sheets for the museum. Updated May 29, 2024.

2014年3月4日 · 现在搞一个 这种小管生产线倒是不错，目测比花生管好多了。 现在电子管阴极技术比以前进步多了，低压大电流低内阻的管子也比较容易实现。 请问是杭州....吗？ 现代胆友 …

Title: 1AD4 Author: Raytheon Subject: JA-FP-2002-01-19 Created Date: 1/19/2002 9:15:21 PM

日本電気（nec)製の1ad4のサブミニチュア管 上の写真は、通常の真空管の比較です。 左からナス管、ST管、GT管、ミニチュア管および日本電気（NEC)製の1AD4のサブミニチュア管を並べてみました。

2025年3月12日 · After many tries, I found out that the 1AD4 just doesn't sound good overdriven. Not even in triode mode! However, it can still be used as a Booster, if properly paired with a transistor buffer with Bootstrapping (this is based off Merlin's "Bootstrapping for more Gain" section at: http://valvewizard.co.uk/dccf.html , which I've used before in ...

本帖最后由 mrliuzhong 于 2014-12-21 08:45 编辑 常用电子管代换表 01A 直热三极管 201/301 1A5 直热五极管 34 1F5G 直热五极管 1F4

2011年3月27日 · nach der Klärung der Miniaturröhren-Bezeichnung 1AD4 habe ich auch eine Anfrage. Diese Röhre war mir vorher unbekannt. Ich suche für meinen Stassfurter-Imerial6 immer noch eine REN704d.

Learn more about Reverb Buyer Protection. Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape. Learn more. Product safety information may be available here. This tube was purchased from a Ham radio enthusiast estate. We will combine shipping. 9 tubes available - price is per tube.