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Total 92 documents matching your query.

41. Re: [Amps] Acoustic Noise Comparison (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 22 Jun 2012 09:02:38 -0700 (PDT)
** I have been fairly fussy about quiet ever since I started to suffer with Tinnitus ( ringing in the ears ). Loud noises - or even medium noises over periods of time - exacerbate the condition. A f
/archives//html/Amps/2012-06/msg00374.html (19,503 bytes)

42. Re: [Amps] Acoustic Noise Comparison (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 22 Jun 2012 21:36:44 -0700 (PDT)
Hi, I found a spare moment today and couldn't resist. I popped open the hood of the Alpha and cut three squares of the "Dynamat Extreme" that I had left over from my car soundproofing project. I stuc
/archives//html/Amps/2012-06/msg00377.html (9,600 bytes)

43. [Amps] Alpha 78 and field day (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Sat, 23 Jun 2012 22:43:16 -0700 (PDT)
Guys, I'm doing a little casual FD operating from my house. This Alpha is a GREAT field day machine. With the bandpass tuning, it's like just having a high power transceiver. No fuss no muss. Just si
/archives//html/Amps/2012-06/msg00390.html (7,521 bytes)

44. Re: [Amps] Alpha 78 and field day (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Sun, 24 Jun 2012 15:07:05 -0700 (PDT)
** All I had to lift was my index finger to punch the "on" button :). But yeah, it's a heavy beast. Not ** That was the idea. I didn't and don't expect to win anything. Already submitted my logs to
/archives//html/Amps/2012-06/msg00403.html (11,147 bytes)

45. Re: [Amps] Oscilloscope Purchase (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Tue, 26 Jun 2012 19:08:23 -0700 (PDT)
** I'm pretty happy with my Tektronix 2445.... - Jerry Kaidor _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-06/msg00409.html (6,853 bytes)

46. Re: [Amps] Oscilloscope Purchase (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Wed, 27 Jun 2012 12:52:23 -0700 (PDT)
What I remember from my instrument shop days ( back in the late 70's ) was that Tektronix scopes worked better, but HP were easier to work on. Typical construction for a Tek scope ( 475 etc ) was fou
/archives//html/Amps/2012-06/msg00426.html (10,644 bytes)

47. [Amps] 3CX400U7 in Alpha Linear? (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Wed, 27 Jun 2012 15:30:22 -0700 (PDT)
Hello, I've seen the 3CX400U7 out there pretty cheap. But those don't have pins, they have rings. Anybody considered replacing the 3CX400A7s (when they die) in an Alpha linear with the U7's? I'm thin
/archives//html/Amps/2012-06/msg00429.html (6,988 bytes)

48. Re: [Amps] Alpha 76A metering changes (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 29 Jun 2012 06:22:33 -0700 (PDT)
** I was looking at my Alpha 78 with an eye to adding circuitry. The box is pretty packed. Where to put it? On top of the power supply circuit board ( the one that screws to the big electrolytics )
/archives//html/Amps/2012-06/msg00444.html (9,016 bytes)

49. Re: [Amps] 8877 Plate Voltage (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Tue, 3 Jul 2012 15:25:07 -0700 (PDT)
** I did this with a multi-tube amp running grounded grid. One resistor per tube. It quieted down the current hogs and encouraged the shy ones :). - Jerry Kaidor, KF6VB _____________________________
/archives//html/Amps/2012-07/msg00025.html (8,844 bytes)

50. Re: [Amps] latest amplifier wonder (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 10:15:09 -0700 (PDT)
** It looks to me like it's set up for one band only. Could be 160.... Why on earth does anybody need an amp with 2400W of plate dissipation? The ad didn't show the power supply. Wonder if the OM ju
/archives//html/Amps/2012-07/msg00033.html (8,452 bytes)

51. [Amps] Amplified TV Antenna (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 11:13:09 -0700 (PDT)
Hello, Need a little advice here. TV reception has been marginal at this QTH since we moved in 8 months ago. Well, that's with an antenna made of 300ohm twinlead thumbtacked to the wall. XYL has been
/archives//html/Amps/2012-07/msg00039.html (8,473 bytes)

52. Re: [Amps] latest amplifier wonder (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 14:06:16 -0700 (PDT)
** Wait, this is AM. I seem to remember that the dissipation requirements are more than for SSB. Actually, much more. The ad says it comes with a 3000V 2A transformer. Yeee haw! - Jerry Kaidor _____
/archives//html/Amps/2012-07/msg00047.html (9,092 bytes)

53. Re: [Amps] Amplified TV Antenna (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 14:42:29 -0700 (PDT)
.... my RFI ** This is excellent. It reminds me of the importance of ground loops. Ground loops and me - we have a history. Once upon a time, when I was in high school, somebody gave me a Heathkit OM
/archives//html/Amps/2012-07/msg00050.html (9,435 bytes)

54. Re: [Amps] Amplified TV Antenna (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 14:49:20 -0700 (PDT)
** Naturally we would never sink to the level of teasing RS associates: Uh - this CD player says it has a 1-bit DAC and that one has a 16-bit. How come the one-bit one costs more money? Surely sixte
/archives//html/Amps/2012-07/msg00051.html (8,741 bytes)

55. Re: [Amps] Amplified TV Antenna (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Fri, 6 Jul 2012 21:24:12 -0700 (PDT)
The actual cause of the hum/buzz problems we blame on these ** Um, the OM-1 had no green wire. Two-wire cord. You seem to have some problem with the words or sounds "ground loop" - OK, let's call it
/archives//html/Amps/2012-07/msg00070.html (10,038 bytes)

56. Re: [Amps] Amplified TV Antenna (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Sat, 7 Jul 2012 08:19:53 -0700 (PDT)
** And from my original question. Is it a good bet to install this well-regarded amplified TV antenna? Bearing in mind that I will be helpless if the internal amp suffers fundamental overload at HF?
/archives//html/Amps/2012-07/msg00089.html (11,740 bytes)

57. Re: [Amps] Filament Xfmr (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Sun, 8 Jul 2012 11:56:19 -0700 (PDT)
10amps, the pigtails ** Do a web search for "wire table" or "ampacity". I found a table that claims that 18AWG is OK for up to 14 amps. However, I believe that at that current, the wire will attain a
/archives//html/Amps/2012-07/msg00121.html (7,786 bytes)

58. Re: [Amps] Antennae (?) (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Thu, 12 Jul 2012 17:00:00 -0700 (PDT)
** Or six 3-500Zs? - Jerry Kaidor _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-07/msg00176.html (8,158 bytes)

59. Re: [Amps] Neon xfmr for HiPot (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Wed, 18 Jul 2012 21:22:07 -0700 (PDT)
** Could current be limited by a resistor in the primary? I remember thinking - 10kV at 30mA - that's a LOT of juice! I was thinking of trying a transistor oscillator driving an automotive ignition
/archives//html/Amps/2012-07/msg00224.html (8,343 bytes)

60. Re: [Amps] Forms for air wound coils (score: 1)
Author: "Jerry Kaidor" <jerry@tr2.com>
Date: Mon, 23 Jul 2012 17:11:52 -0700 (PDT)
I once wound a plate choke on a pyrex test tube.... - Jerry Kaidor _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2012-07/msg00249.html (7,387 bytes)

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