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References: [ +from:ka4inm@tampabay.rr.com: 211 ]

Total 211 documents matching your query.

61. Re: [Amps] HV Fuses (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Wed, 17 Feb 2010 09:07:03 -0500
The reason and result are different. In Kettering ignition systems the capacitor was to resonate the coil at a lower frequency which produced a lower frequency sine wave spark Voltage, producing a f
/archives//html/Amps/2010-02/msg00480.html (9,256 bytes)

62. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Fri, 19 Feb 2010 01:07:27 +0000
The 8 Henry filter choke with an oil filled .1mFd in parallel then an oil filled 20mFd cap to ground is a tuned filter, tuned to 120 Hz. If you truly have 60 Hz hum, you have a diode open in one of
/archives//html/Amps/2010-02/msg00531.html (9,250 bytes)

63. Re: [Amps] Alpha 86 light bulb (#85) replacement (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Thu, 25 Feb 2010 15:06:40 -0500
/*SNIP*/ It is a wedge based lamp just like those in modern dashboards and tag lights. Except it is 28 Volts at 0.04 Amps (1.12 Watts) You can take him (several) 14 Volt .04 Amp version (from Wally
/archives//html/Amps/2010-02/msg00745.html (7,622 bytes)

64. Re: [Amps] WD-40 is not.... (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 02 Mar 2010 00:01:19 +0000
I met a tower climber that was setting on a tower doing a path alignment* on a mw dish when a wasp flew into his face, he reacted by pulled a 1 1/2" "stiff arm" (that he had a good grip on) into his
/archives//html/Amps/2010-03/msg00028.html (10,019 bytes)

65. Re: [Amps] WD-40 is not.... (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 02 Mar 2010 00:08:00 +0000
It is supper for removing adhesive labels no matter how long they have been stuck there and I've never had it soften paint or damage any plastic. (doesn't mean it can't) It must soak through the pap
/archives//html/Amps/2010-03/msg00029.html (9,150 bytes)

66. Re: [Amps] WD-40 is not.... (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 02 Mar 2010 00:13:06 +0000
I buy paralyzing wasp spray for about $2.60* (home improvement centers) per huge can that works supper, it is only soapy water and a bit of 111-trichlorethane, which is deadly to any insect. * whate
/archives//html/Amps/2010-03/msg00030.html (8,998 bytes)

67. Re: [Amps] WD-40 Is Not.... (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 02 Mar 2010 04:20:59 +0000
My buddy, when he worked in the air conditioning field, use to squirt warehouse roaches with freon 12, the first drop froze them, flipped them on their back and turned them all white in the first se
/archives//html/Amps/2010-03/msg00040.html (8,311 bytes)

68. Re: [Amps] Manganin wire (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Sun, 07 Mar 2010 12:58:25 +0000
Putting a similar meter (same internal resistance and FS sensitivity) would result in two meters displaying the same meter deflection (disregard the scales) if they have the same sensitivity. Old me
/archives//html/Amps/2010-03/msg00117.html (7,841 bytes)

69. Re: [Amps] DE-OX-IT (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Wed, 10 Mar 2010 08:49:22 -0500
If activated a lot the gold will be hammered away revealing the base metal. -- Ron KA4INM - I'm proud to be Chuck's pop! _______________________________________________ Amps mailing list Amps@contes
/archives//html/Amps/2010-03/msg00158.html (7,824 bytes)

70. Re: [Amps] PTFE dielectricum variable cap (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Mon, 15 Mar 2010 17:05:30 -0400
Since "p means 10-12 (million-millionth), so 1000 pF = 1 nF" you are going to build a 500 to 1000 pF capacitor? I would think about putting a 50 pF to 500 pF in parallel with a 470 pF doorknob (or s
/archives//html/Amps/2010-03/msg00279.html (8,268 bytes)

71. Re: [Amps] Building 833 Amplifier. Hints and Suggestions? (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 16 Mar 2010 16:01:43 -0400
/*snip*/ If I could come up with a pair of 833s I would build a P-P grounded cathode amplifier. (cross neutralized) I would use a tuned center tapped grid and plate coils and I would link couple in
/archives//html/Amps/2010-03/msg00311.html (9,987 bytes)

72. Re: [Amps] Teflon Caps (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Wed, 17 Mar 2010 16:49:35 -0400
I have one of these also, the chap that gave it to me told me it came out of a army transmitter using one or two 813 pentodes. (possibly an ART-13) The problem with it is the shaft is about 3/8" lon
/archives//html/Amps/2010-03/msg00353.html (8,133 bytes)

73. Re: [Amps] choke - cap filter network in PS (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 23 Mar 2010 12:52:40 -0400
I'll guess that is all that was needed after the "resonant input" and it reduces the energy stored in the filter capacitors. That's the way I like to do it. -- Ron KA4INM - I'm proud to be Chuck's p
/archives//html/Amps/2010-03/msg00497.html (7,635 bytes)

74. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 23 Mar 2010 14:56:47 -0400
I call it a tuned auto-transformer. -- Ron KA4INM - I'm proud to be Chuck's pop! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai
/archives//html/Amps/2010-03/msg00506.html (8,229 bytes)

75. Re: [Amps] ripple in B+ supply (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Wed, 24 Mar 2010 11:36:16 -0400
Most "iron vane" ac Voltmeters measure true RMS. -- Ron KA4INM - I'm proud to be Chuck's pop! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.conte
/archives//html/Amps/2010-03/msg00558.html (7,839 bytes)

76. Re: [Amps] Why people don't build amps. (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Fri, 26 Mar 2010 14:11:39 -0400
< The industry of ham radio gear placed such a weird perfectionism in our brain that we find a home brewed linear amp which has not all knobs symmetrical arranged and in one line is UGLY! What's real
/archives//html/Amps/2010-03/msg00663.html (8,492 bytes)

77. Re: [Amps] 'good engineering' (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Sun, 28 Mar 2010 11:49:35 +0000
Paralleling a equal size of resistance across the meter movement should change a 1 amp meter into a 2 amp meter. (mark with: "X 2") -- Ron KA4INM - The next election, I know what is going to happen,
/archives//html/Amps/2010-03/msg00712.html (9,284 bytes)

78. [Amps] Photo flash caps (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Mon, 29 Mar 2010 16:01:03 -0400
Earlier this year someone on this list said something about "photo flash" caps not being suitable for high Voltage power supply filtering. (for HPAs) Did that remark apply to oil filled paper or elec
/archives//html/Amps/2010-03/msg00815.html (7,074 bytes)

79. Re: [Amps] gg (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 30 Mar 2010 09:54:46 -0400
The (/*snip*/)"an automatic document feeder. I can scan a 400 page book in about one hour" combined with quite a low resolution scan, what I down loaded is of remarkably low quality. I will not be lo
/archives//html/Amps/2010-03/msg00864.html (8,969 bytes)

80. Re: [Amps] Good engineering...More Car Computer Horror Stories (score: 1)
Author: Ron Youvan <ka4inm@tampabay.rr.com>
Date: Tue, 30 Mar 2010 12:15:44 -0400
A few HAMs in North Tampa seem to enjoying kicking up their 2 meter power to 50 Watts (while talking on local repeaters) on purpose, as they enter parking garages, just to hear the car alarms go off
/archives//html/Amps/2010-03/msg00875.html (10,708 bytes)

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