Search String: Display: Description: Sort:

Results:

References: [ +from:audioguy@charter.net: 96 ]

Total 96 documents matching your query.

41. Re: [Amps] Source for large purchase of toroids? (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Tue, 26 Jan 2010 16:01:23 -0800
It isn't necessarily a "don't bother to" scenario. Do you have time to read even a fraction of the postings and references in all the information that passes your desk every day? Unfortunately, I don
/archives//html/Amps/2010-01/msg00361.html (10,938 bytes)

42. Re: [Amps] Amp panels - an alternative to silkscreening (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Fri, 29 Jan 2010 18:01:46 -0800
That might be an interesting alternative to try in situations where black or at least very dark text would work. Something I've been experimenting with lately is engraving - both through the coating
/archives//html/Amps/2010-01/msg00469.html (10,838 bytes)

43. Re: [Amps] I dont accept answers to why did Heath die? (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Mon, 01 Feb 2010 11:14:31 -0800
Latency with the Flex may or may not be a problem depending on the PC and the care used to configure it. I make no claim to being a CW op, so it would be better to have the discussion with someone th
/archives//html/Amps/2010-02/msg00025.html (11,377 bytes)

44. Re: [Amps] HV relay (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Thu, 04 Feb 2010 20:58:24 -0800
Max-Gain Systems has surplus Jennings RF5A's (7500V, 12A) for $19/each: http://www.mgs4u.com/RF-Microwave/vacuum-relays-SPST.htm Don't buy them all... I've been meaning to order some but haven't gott
/archives//html/Amps/2010-02/msg00117.html (7,580 bytes)

45. Re: [Amps] QRO Questions (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Fri, 05 Feb 2010 15:01:24 -0800
Many years and several moves ago our next-door neighbor's bedroom overhead (incandescent) light used to modulate with my QRO 75m SSB signal. I re-oriented my 75m inverted-vee from N-S to E-W and the
/archives//html/Amps/2010-02/msg00134.html (9,746 bytes)

46. Re: [Amps] shorted filter caps (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Thu, 11 Feb 2010 15:24:40 -0800
Shorted or high-leakage electrolytic caps are usually expected when resurrecting vintage electronic gear. I don't know if drawing a direct parallel to HV amplifier supplies is appropriate or not, but
/archives//html/Amps/2010-02/msg00325.html (9,479 bytes)

47. Re: [Amps] shorted filter cap (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Fri, 12 Feb 2010 14:50:09 -0800
Semantics. If it goes 'bang' and causes me to claw the ceiling, then that's close enough to shorted for me, although in the heat of the moment I might choose expletives over adjectives... 73, Jim, N7
/archives//html/Amps/2010-02/msg00365.html (8,342 bytes)

48. Re: [Amps] 3000/5000 (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Wed, 17 Feb 2010 12:15:11 -0800
What about tapping the inductor down from the antenna side with a batch of Really Husky relays? I have some here I bought from Array Solutions that have held up to between 10 and 3000 ohm antenna loa
/archives//html/Amps/2010-02/msg00497.html (10,647 bytes)

49. Re: [Amps] Alpha 76/78 front panel 'flag' buttons (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Wed, 24 Mar 2010 11:12:43 -0700
Does anyone still have an inventory of the 76/78 switches? (no, I haven't called Alpha, this thread got my curiosity up) I have a 76A that could definitely use a new set. Thanks, Jim, N7CXI _________
/archives//html/Amps/2010-03/msg00562.html (9,133 bytes)

50. [Amps] YC156 operating parms for US amp build? (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Mon, 29 Mar 2010 17:55:26 -0700
Assuming all this YC156 chatter motivated me enough to start yet another project, I'm curious what a good set of operating parameters would be for a YC156 GG US-legal-with-significant-headroom amp? M
/archives//html/Amps/2010-03/msg00829.html (7,267 bytes)

51. Re: [Amps] UNBUILT SB 220 SOLD...I CANNOT TELL A LIE! (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Wed, 31 Mar 2010 13:45:46 -0700
IMHO, people will collect just about anything - it has little to nothing to do with usage. My dad and I used to collect unfired Colt handguns, if they met certain criteria. (model, production dates,
/archives//html/Amps/2010-03/msg00964.html (10,902 bytes)

52. Re: [Amps] UNBUILT SB 220 SOLD...I CANNOT TELL A LIE! (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Wed, 31 Mar 2010 13:40:23 -0700
IMHO, people will collect just about anything - it has little to nothing to do with usage. My dad and I used to collect unfired Colt handguns, if they met certain criteria. (model, production dates,
/archives//html/Amps/2010-03/msg00965.html (10,952 bytes)

53. Re: [Amps] 2000Vct 1.5KVA Toroid Tube Transmitter Amp Transformer (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Sun, 18 Apr 2010 12:45:43 -0700
Funny... I sent them a very similar email a month or so ago. No response. The "sister" company also makes some attractively cheap aluminum enclosures. Jim, N7CXI _____________________________________
/archives//html/Amps/2010-04/msg00545.html (8,914 bytes)

54. Re: [Amps] 30M noise problem (OT?) (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Tue, 20 Apr 2010 16:53:15 -0700
Looking at only the spectral display it's a fair match for a regular enemy of mine - the Variable Frequency Drive motor (VFD) in any number of newer front-load washing machines, air conditioners, etc
/archives//html/Amps/2010-04/msg00583.html (10,469 bytes)

55. Re: [Amps] HV toroid, ebay item # 370270095930 (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Thu, 22 Apr 2010 16:13:52 -0700
Try this one: 370270095030 2000Vct 1.5KVA Toroid Tube Transmitter Amp Transformer If that doesn't get you there, search eBay for "toroidal transformer". A fair percentage of the hits will be for the
/archives//html/Amps/2010-04/msg00615.html (10,344 bytes)

56. Re: [Amps] Cleaning air-wound coils (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Mon, 03 May 2010 11:38:01 -0700
High-temp powder coating might be interesting to try as well. Several powders are available that are good for over 500 degrees F after curing. They're used on exhaust systems, ovens, etc. If the coil
/archives//html/Amps/2010-05/msg00034.html (10,209 bytes)

57. Re: [Amps] Cleaning air-wound coils (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Mon, 03 May 2010 13:39:19 -0700
Good point, since the original question was about B&W coils. What I don't know is whether the curing process would get the plastic hot enough long enough to matter. Standard polycarbonate (used in th
/archives//html/Amps/2010-05/msg00038.html (12,264 bytes)

58. Re: [Amps] Cleaning air-wound coils (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Wed, 05 May 2010 10:11:35 -0700
Based on everthing presented in this thread, then, at HF would a *very* thin layer of plated gold decrease performance in any significant way? If not, that might be a long-term method to keep things
/archives//html/Amps/2010-05/msg00062.html (11,620 bytes)

59. Re: [Amps] 5CX1500A (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Thu, 06 May 2010 13:20:38 -0700
A text-searchable DVD set returns: "Notes on the Eimac 5CX1500A power pentode" Arthur Reis, K9XI Ham Radio, August 1980, pp61,62 Text-only article, mostly anecdotal notes - article describes some ear
/archives//html/Amps/2010-05/msg00079.html (9,680 bytes)

60. Re: [Amps] 5CX1500A (score: 1)
Author: Jim Barber <audioguy@charter.net>
Date: Thu, 06 May 2010 16:03:26 -0700
No, unfortunately he didn't. ;-) 73, Jim, N7CXI _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-05/msg00086.html (11,311 bytes)

Current List: 41 - 60
Page: [1] [2] [3] [4] [5]
This search system is powered by Namazu