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Total 6 documents matching your query.

1. [AMPS] AB1/2 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 12 Jun 1997 12:40:00 +0100; Hi guys transistors. virtually Secondary breakdown is a funny thing, and you can't always rely on the curves in the data sheet.. Quite a few years ago now, John, GW4FRX did an article in RadCom (repr; /archives//html/Amps/1997-06/msg00199.html (9,680 bytes)
2. [AMPS] AB1/2 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 16 Jun 1997 17:01:00 +0100; Tom, OK, I see what you mean. I made the unwarrantable assumption that one automatically drives the grid up to zero volts to get the most swing - but you don't have to, although that seems to be the; /archives//html/Amps/1997-06/msg00231.html (7,962 bytes)
3. [AMPS] AB1/2 (score: 1): Author: w8jitom@postoffice.worldnet.att.net (w8jitom@postoffice.worldnet.att.net); Date: Mon, 16 Jun 1997 22:21:22 +0000; That's right Peter. I'm sorry I didn't explain that better. A drawing would have helped, hi. My point was there is absolutely NO requirement the grid go positive with respect to the cathode in ANY l; /archives//html/Amps/1997-06/msg00238.html (9,244 bytes)
4. [AMPS] AB1/2 (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 17 Jun 97 15:17:17 -0700; ...snip......... There is no requirement that the emission capability of the tube be fully utilized by the designer. According to Eimac Curve #3452, in Class AB2 g-g, an F1 (Mu = 5),, the RF grid-ca; /archives//html/Amps/1997-06/msg00255.html (9,569 bytes)
5. [AMPS] AB1/2 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Wed, 18 Jun 1997 11:49:00 +0100; Gas tube regulators. Someone asked about the dynamic impedance of gas tube regulators. I found some RCA info which suggests about 160 ohms - that's for 105 and 150 volt regulators, both the octals an; /archives//html/Amps/1997-06/msg00257.html (9,448 bytes)
6. [AMPS] AB1/2 (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 18 Jun 1997 13:41:52 +0100; 'Twas I - thanks for the information, Peter. That's about 480 ohms for a typical string of two VR105s and a VR150. So the diode junctions and the 4CX1000 screen grid were both involved in thermal run; /archives//html/Amps/1997-06/msg00268.html (8,473 bytes)

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