Search String: Display: Description: Sort:

Results:

References: [ +from:nagato@arnet.com.ar: 94 ]

Total 94 documents matching your query.

41. Re: [Amps] 10 DB increase (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Sat, 05 Feb 2005 11:29:55 -0300
Ken, IMHO it's non linear (a simpler, bad design) or unadjusted metering system. In older receivers with S-meters calibrated in microvolts, a 10 dB power increase reflects as a 20 Db input change. Co
/archives//html/Amps/2005-02/msg00143.html (9,631 bytes)

42. [Amps] 813 top cap cement (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 17 Feb 2005 19:53:13 -0300
Which cement could be appropriate to fix the loose top cap in one of my 813's?. It works very well, the cap has been detached from the glass, but still in place by means of the plate connection wire.
/archives//html/Amps/2005-02/msg00563.html (6,217 bytes)

43. Re: [Amps] 813 top cap cement (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Fri, 18 Feb 2005 00:14:33 -0300
Many thanks for the various answers; I'll give a try to a sealant marketed as "Fastix" here, there's a high temperature (350 &ordm;C) resistant version, it's like RTV, and what's more important in my
/archives//html/Amps/2005-02/msg00572.html (8,211 bytes)

44. [Amps] Hi pot circuit variation (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 24 Feb 2005 09:53:32 -0300
Although it's indirectly related with Amp's topic, i want to ask if anybody has used a triac control (even with a zero crossing detector) instead of a variac for the HiPot tester. Best regards Guille
/archives//html/Amps/2005-02/msg00731.html (6,227 bytes)

45. [Amps] Mica Condensers (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 14 Apr 2005 10:41:11 -0300
Hello, I have two capacitors, NOS both, manufactured by Soshin Denki K.K., one is Type A-2, 0.01uF, T.V. 5 KV DC, and a stamped number (date code?) 61-8. The other is Type A-1, 0.01uF, T.V 3 KV DC. t
/archives//html/Amps/2005-04/msg00276.html (6,395 bytes)

46. [Amps] 813 (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Mon, 25 Apr 2005 10:09:08 -0300
I have found two 813 NOS tubes from RCA. They have a metal sheet anode instead of the old graphite ones for the surplus types. Is there any advantage/preference for any of them?. I have a slightly id
/archives//html/Amps/2005-04/msg00519.html (6,598 bytes)

47. Re: [Amps] Freebie (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Mon, 25 Apr 2005 10:03:32 -0300
I second his idea, it would be great. TIA. Best regards Guillermo - LU8EYW. Patrick EGLOFF escribi&oacute;: _______________________________________________ Amps mailing list Amps@contesting.com http:
/archives//html/Amps/2005-04/msg00520.html (8,135 bytes)

48. Re: [Amps] DC Blocking Capacitor (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Tue, 26 Apr 2005 23:52:10 -0300
Plate resistance equals VDC/(k*Ia), with k=1.8 for AB2 GG, is this correct?. Best regards Guillermo - LU8EYW. Phil Clements escribi&oacute;: _______________________________________________ Amps maili
/archives//html/Amps/2005-04/msg00569.html (9,329 bytes)

49. [Amps] PI input types for linears (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Sun, 29 May 2005 10:47:22 -0300
What kind of arrangement is best for PI input circuits in a linear amplifier?, one which has an adjustable inductor or the other with two trimmer capacitors?. Best regards Guillermo - LU8EYW. _______
/archives//html/Amps/2005-05/msg00318.html (6,267 bytes)

50. Re: [Amps] Help, My SB-220 is sick (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 23 Jun 2005 00:01:12 -0300
I should start lifting the HV connection to the bottom of the plate choke, then power on to see what happen, a (maybe) tube related problem or a power supply problem. best regards Guillermo - LU8EYW.
/archives//html/Amps/2005-06/msg00190.html (8,609 bytes)

51. [Amps] Transformer spec's for linear amplifier (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Wed, 06 Jul 2005 23:13:37 -0300
Having the need of a 2500VDC @ 350 mA maximum current power supply, and planning to use a full wave voltage doubler, how can I establish the correct current rating for the transformer?. It should be
/archives//html/Amps/2005-07/msg00043.html (6,603 bytes)

52. [Amps] Transformer spec's for linear amplifier - added (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 07 Jul 2005 08:00:45 -0300
Having the need of a 2500VDC @ 350 mA maximum current power supply, and planning to use a full wave voltage doubler, how can I establish the correct current rating for the transformer?. It should be
/archives//html/Amps/2005-07/msg00046.html (7,010 bytes)

53. [Amps] Conditioning certain tubes (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Mon, 11 Jul 2005 22:26:35 -0300
I have two NOS 8122 RCA tubes, these have been stored many years, and my question is if these tubes also need conditioning as the other "glass" tubes before use, and if so, may I have to follow any p
/archives//html/Amps/2005-07/msg00101.html (6,351 bytes)

54. Re: [Amps] Tetrodes (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Tue, 12 Jul 2005 20:02:58 -0300
Please, let me jump in here, with my usual question: for my two, nos RCA 8122 (they have been stored many years) that I plan to put in use in a friend's NCL 2000 linear, will suffice to turn on heate
/archives//html/Amps/2005-07/msg00131.html (9,993 bytes)

55. Re: [Amps] Specification for 3-500 grounded-grid grid bypass caps? (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Fri, 15 Jul 2005 08:11:57 -0300
Mylar?, those cylindrical made of rolled aluminium foil?. I thought Mylar was not good beyond 20 MHz. Siver mica or good quality disk ceramics are best options. You may increase the value, but that s
/archives//html/Amps/2005-07/msg00164.html (8,146 bytes)

56. Re: [Amps] LK500 Amp Problem (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Tue, 19 Jul 2005 10:07:08 -0300
Steve Thompson escribi&oacute;: I've used plumber's PTFE tape to protect the trap coils in my past HQ-1 mini quad antenna (that for 20,15, 10 and 6), with no apparent loss of performance or de-tuning
/archives//html/Amps/2005-07/msg00210.html (8,611 bytes)

57. Re: [Amps] plate choke (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Fri, 26 Aug 2005 10:25:57 -0300
Alex Eban escribi&oacute;: Alex, like the one shown in this site: http://sp5gjn.za.pl Best regards Guillermo - LU8EYW. _______________________________________________ Amps mailing list Amps@contestin
/archives//html/Amps/2005-08/msg00692.html (8,164 bytes)

58. [Amps] Bias or Plate voltage change (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Tue, 30 Aug 2005 21:57:31 -0300
I've seen many GG amplifiers with a lower working plate voltage for CW mode than for SSB (for example some 2KV for CW, 3 KV for SSB). Others have a fixed plate voltage value and change cathode bias i
/archives//html/Amps/2005-08/msg00764.html (6,803 bytes)

59. [Amps] Bias or Plate voltage change (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Thu, 01 Sep 2005 13:12:08 -0300
Many thanks for the answers. A last question I have is, which is the correct CW bias so?, beyond cutoff bias, or just one which makes circulate a slight plate current?. Thanks in advance Best regards
/archives//html/Amps/2005-09/msg00002.html (6,301 bytes)

60. Re: [Amps] CW and High Voltage (score: 1)
Author: GGLL <nagato@arnet.com.ar>
Date: Sat, 03 Sep 2005 23:20:14 -0300
Even when re-tuning the amplifier with low drive, for maximum output, then (for the same plate voltage) the RL will be different from the optimum value for which the Pi tank is designed; you will hav
/archives//html/Amps/2005-09/msg00029.html (13,058 bytes)

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