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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+Blown\s+TL922A\.\.\.\s+What\s+to\s+do\?\s*$/: 246 ]

Total 246 documents matching your query.

41. [AMPS] Blown TL922A... What to do? (score: 1): Author: rfamps@ic24.net (Steve Thompson); Date: Thu, 7 Sep 2000 08:20:20 +0100; That's not quite right, Don. The tune C has inherent inductance, so you get resonances. The resonance frequencies vary with shape, size and capacitance setting, but in all that I have put on the netw; /archives//html/Amps/2000-09/msg00182.html (10,808 bytes)
42. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 01:23:23 -0700; You check what I say in Wil's archive. It's all in the archive, Don - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contestin; /archives//html/Amps/2000-09/msg00185.html (15,501 bytes)
43. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 01:23:26 -0700; To: <amps@contesting.com> I did not say this, Steve. cheers. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com A; /archives//html/Amps/2000-09/msg00186.html (11,135 bytes)
44. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 01:23:20 -0700; A guy in Sweden played the Rauch Card. Anyone who blames me for this is someone I would rather miss. end - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com; /archives//html/Amps/2000-09/msg00187.html (9,219 bytes)
45. [AMPS] Blown TL922A... What to do? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 7 Sep 2000 10:00:08 +0100; Only in your definition of resonance. Not in the one generally accepted professionally - that V and I at the input are in phase. 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submi; /archives//html/Amps/2000-09/msg00190.html (9,109 bytes)
46. [AMPS] Blown TL922A... What to do? (score: 1): Author: dcckc@ncn.net (dcckc); Date: Thu, 07 Sep 2000 04:00:35 -0500; Its sounds like you have found the an answer to what I thought was a imaginary problem if what you say is true and I dont doubt that it is then I would hope these improvements would be on the very ne; /archives//html/Amps/2000-09/msg00191.html (11,766 bytes)
47. [AMPS] Blown TL922A... What to do? (score: 1): Author: sm2cew@telia.com (Peter Sundberg); Date: Thu, 07 Sep 2000 09:39:34 +0200; Paul, I am perfectly comfortable with my QBL 5-3500 G2DAF amp without any parasitic suppressor. It runs all bands, stable as a rock. No special arrangements except the screen is bypassed with a PTFE; /archives//html/Amps/2000-09/msg00194.html (10,260 bytes)
48. [AMPS] Blown TL922A... What to do? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 7 Sep 2000 10:40:28 +0100; The corollary to Tom's statement is that a tube with the anode parasitic circuit resonant at a frequency below that of the grid parasitic circuit will not oscillate. See Terman's 'Radio Engineering'.; /archives//html/Amps/2000-09/msg00195.html (9,408 bytes)
49. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 7 Sep 2000 09:11:39 -0400; That's exactly what a suppression system does. Not that I know of. By the way, many amplifier designs are done they way they are because people "perceive" it should be done that way. Look at the cap; /archives//html/Amps/2000-09/msg00199.html (10,435 bytes)
50. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 7 Sep 2000 09:11:39 -0400; The series inductance LOWERS the impedance. It forms a virtual short in the cases I have measured. I measured a transmitting capacitor commonly used in PAs. It was series resonant, and a virtual sho; /archives//html/Amps/2000-09/msg00201.html (12,764 bytes)
51. [AMPS] Blown TL922A... What to do? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 7 Sep 2000 09:11:40 -0400; I'd wager any improvement would be publicized by a certain individual as a "step backwards" because it isn't the 1930's technology he promotes. The reason the "debate" rages on is because some peopl; /archives//html/Amps/2000-09/msg00202.html (11,074 bytes)
52. [AMPS] Blown TL922A... What to do? (score: 1): Author: phil@vaxxine.com (Phil (VA3UX)); Date: Thu, 07 Sep 2000 09:06:41 -0400; Not understanding the derivation of an equation (ie. where it came from) is not the same as 'not understanding scientific notation' Rich, as you have charged. Boy you sure throw alot of stones. I ass; /archives//html/Amps/2000-09/msg00204.html (9,448 bytes)
53. [AMPS] Blown TL922A... What to do? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Thu, 7 Sep 2000 14:16:02 +0100; This ties in exactly with what Tom was saying. If you build HF amplifiers with the kind of "VHF awareness" that Peter has, you don't have many problems with unexpected VHF resonances. On the other ha; /archives//html/Amps/2000-09/msg00205.html (10,283 bytes)
54. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 08:39:48 -0700; I have spoken with a number of AL-1500 owners who got some nasty surprises. end - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: am; /archives//html/Amps/2000-09/msg00213.html (9,978 bytes)
55. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 08:39:50 -0700; True. These were two separate events. I throw embarrassing quotes. cheers, Phil - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: am; /archives//html/Amps/2000-09/msg00214.html (9,566 bytes)
56. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 09:32:13 -0700; Rich did not say this. The discussion of current division in L-supp and R-supp had Nothing to do with the discussion about series resonances in C-Tune. I have made no measurements of series resonanc; /archives//html/Amps/2000-09/msg00217.html (13,750 bytes)
57. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 09:32:15 -0700; Are year-2000 electrons different than 1935 electrons? ? now there's a new one. ETO's 8877 amplifier had a VHF suppressor. Ameritron's 8877 amplifier has no VHF suppressor. Which manufacturer is stu; /archives//html/Amps/2000-09/msg00218.html (11,752 bytes)
58. [AMPS] Blown TL922A... What to do? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 7 Sep 2000 17:36:15 +0100; There are three things certain in life........... Death (Even that's not quite so sure with modern medicine) Taxes And the fact that the parasitic debate will never end, only occasionally be suppress; /archives//html/Amps/2000-09/msg00220.html (9,128 bytes)
59. [AMPS] Blown TL922A... What to do? (score: 1): Author: 2@vc.net (measures); Date: Thu, 7 Sep 2000 10:19:22 -0700; also -- Humans suffer from denial of reality. In my view, the parasitics debate ended when the missing piece of the puzzle was supplied. After writing several articles on the subject, I had no clue; /archives//html/Amps/2000-09/msg00224.html (9,681 bytes)
60. [AMPS] Blown TL922A... What to do? (score: 1): Author: dcckc@ncn.net (dcckc); Date: Thu, 07 Sep 2000 12:35:08 -0500; but not to be found on ameritron amps A moot point till the improvements are seen The least troublesome ameritron among owners seems to be the AL811 pretty close to 1930 technology apparently Mr Kes; /archives//html/Amps/2000-09/msg00225.html (11,986 bytes)

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