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Total 11 documents matching your query.

1. [AMPS] Floating Grids (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sun, 5 Nov 2000 18:59:30 -0500; Everyone seems to agree the idea of negative feedback is a bust. That is was not technically sound in an amplifier with grid current, or a triode. One valid reason for floating the grids is equalizin; /archives//html/Amps/2000-11/msg00064.html (8,376 bytes)
2. [AMPS] Floating Grids (score: 1): Author: ITR@Nanoteq.co.za (Ian Roberts); Date: Mon, 06 Nov 2000 10:43:38 +0200; Presumably any bypass caps become more reactive with increasing frequency, rendering the bypassing less effective anyway. Ian ZS6BTE -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amp; /archives//html/Amps/2000-11/msg00067.html (7,900 bytes)
3. [AMPS] Floating Grids (score: 1): Author: 2@vc.net (measures); Date: Mon, 6 Nov 2000 05:27:55 -0800; True enough, Tom. Orr made a small error. Not very likely. In my experiences the 500v grid caps short first does not make sense. At a cathode potential of +20v , the tube is in cut off. not well tho; /archives//html/Amps/2000-11/msg00070.html (8,938 bytes)
4. [AMPS] Floating Grids (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Mon, 6 Nov 2000 15:18:44 +0100; With some socket, also the actual method to ground grid is prone to have inductance, and inductive reactance yes increases with frequency. With proper bypassing capacitors and short leads, like with; /archives//html/Amps/2000-11/msg00071.html (7,851 bytes)
5. [AMPS] Floating Grids (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Mon, 6 Nov 2000 15:39:39 +0100; It happens if catode becomes floating, but generally it does not. Transceivers, IP shunt resistor (and meter) and bias zener where never replaced after grid coil opened in the SB220 and TL 922 we re; /archives//html/Amps/2000-11/msg00072.html (7,827 bytes)
6. [AMPS] Floating Grids (score: 1): Author: 2@vc.net (measures); Date: Mon, 6 Nov 2000 07:37:13 -0800; does not wash. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contestin; /archives//html/Amps/2000-11/msg00074.html (7,972 bytes)
7. [AMPS] Floating Grids (score: 1): Author: 2@vc.net (measures); Date: Mon, 6 Nov 2000 07:43:53 -0800; Amen, Mauri. 1-inch strap has around 12nH per linear inch. ciao, Mauri - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contes; /archives//html/Amps/2000-11/msg00075.html (8,392 bytes)
8. [AMPS] Floating Grids (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 6 Nov 2000 17:59:59 -0500; It is a popular myth that adding a series C will decrease reactance in HF amplifiers as frequency is increased and improve stability. The normal capacitance in the tube parallel resonating with the; /archives//html/Amps/2000-11/msg00076.html (8,810 bytes)
9. [AMPS] Floating Grids (score: 1): Author: 2@vc.net (measures); Date: Mon, 6 Nov 2000 19:26:34 -0800; True. There is not much improvement in the grid resonance freq. with 200pF caps. The AL-82 has Rauchian directly grounded grids. Is it stable? See Figure 17 on my Web site. end - Rich..., 805.386.37; /archives//html/Amps/2000-11/msg00077.html (9,197 bytes)
10. [AMPS] Floating Grids (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Tue, 7 Nov 2000 09:29:04 +0100; As I told in my message, all depends by the tube and its socket. When a tube socket is mechanically unsuitable for short, low inductance ground connection, or inside the tube itself there's a long l; /archives//html/Amps/2000-11/msg00081.html (8,572 bytes)
11. [AMPS] Floating Grids (score: 1): Author: i4jmy@iol.it (i4jmy@iol.it); Date: Tue, 7 Nov 2000 09:30:20 +0100; As I told in my message, all depends by the tube and its socket. When a tube socket is mechanically unsuitable for short, low inductance ground connection, or inside the tube itself there's a long l; /archives//html/Amps/2000-11/msg00082.html (8,590 bytes)

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