Mail Archive Search: <+from:wc6w

Results:

References: [ +from:wc6w_amps@yahoo.com: 193 ]

Total 193 documents matching your query.

61. Re: [Amps] amp p/s metering (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 19 Dec 2008 08:46:53 -0800 (PST); Hi Steve, Welll, if those are also the equalizing R's across the caps, as in the '220, then it is not a good idea as the leakage of the capacitors will influence the reading. Though a clever guy migh; /archives//html/Amps/2008-12/msg00268.html (8,474 bytes)
62. Re: [Amps] shielded HV connector (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sun, 28 Dec 2008 10:24:47 -0800 (PST); If anybody has any need for them, I still have a couple MHV and SHV connector sets available: http://wc6w.50webs.com/wc6wfsw/index.html?fr44.html 73 & Happy Holidays! Marv WC6W http://wc6w.50webs.com; /archives//html/Amps/2008-12/msg00354.html (7,612 bytes)
63. Re: [Amps] switchable zener cathode bias (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Wed, 31 Dec 2008 10:43:58 -0800 (PST); Hi Steve, Leave the high voltage one in circuit continuously and just switch in the lower voltage part in parallel with it when you need less bias. 73 & Happy New Year! Marv WC6W http://wc6w.50webs.c; /archives//html/Amps/2008-12/msg00383.html (9,165 bytes)
64. Re: [Amps] 5cx1500 Amp (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sat, 3 Jan 2009 10:36:34 -0800 (PST); Hi Robert, You might take a look at the ol' Henry 4K2 (manual available on the web somewhere...), which is the only ham amp I can recall using that tube. 73 & Happy New Year! Marv WC6W http://wc6w.50; /archives//html/Amps/2009-01/msg00019.html (8,662 bytes)
65. Re: [Amps] turns counter needed (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Mon, 5 Jan 2009 12:11:40 -0800 (PST); Hi Steve, Those old "Groth" units. Long out of production. Now, at least you know the name to Gooooglllize. 73 & Good afternoon, Marv WC6W http://wc6w.50webs.com/ ____________________________________; /archives//html/Amps/2009-01/msg00034.html (7,980 bytes)
66. [Amps] PCB's (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Mon, 2 Feb 2009 14:11:46 -0800 (PST); Even the word can engender an upset in certain circles... Late in the last millennium, I was at General Electric headquarters, on business, and the mere mention of PCB, meaning printed circuit board,; /archives//html/Amps/2009-02/msg00040.html (6,838 bytes)
67. Re: [Amps] Plate Choke Values (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Thu, 5 Feb 2009 09:15:58 -0800 (PST); Hi Eddy, You may find my compendium of plate choke technology to be of interest: http://wc6w.50webs.com/wc6wamps/index.html?fr62.html 73 & Good morning, Marv WC6W ____________________________________; /archives//html/Amps/2009-02/msg00116.html (10,126 bytes)
68. [Amps] First, CHECK the WIRING !!! -- was: SB-220 troubles (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 13 Feb 2009 09:25:16 -0800 (PST); It is always wise to "check the wiring" on any device of unknown history. I offer the following example: Late in the last millennium, I sold an electric clothes dryer (240V), through a classified ad; /archives//html/Amps/2009-02/msg00422.html (9,532 bytes)
69. Re: [Amps] Vintage rig PS question (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Thu, 19 Feb 2009 09:48:26 -0800 (PST); Hi Carl, Back when, choke input was required to protect the Mercury/Xenon rectifiers from current peaks they couldn't tolerate. The transformer will run just fine with modern diodes. Voltage regulati; /archives//html/Amps/2009-02/msg00569.html (8,772 bytes)
70. Re: [Amps] turns = henries question (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sat, 21 Feb 2009 12:41:52 -0800 (PST); Hi Gary, The coil as you've described should be about 80 uH. A 3" winding, other dimensions remaining constant, will provide 60 uH. Calculations performed on an American Hydromath Calculaide Frequenc; /archives//html/Amps/2009-02/msg00620.html (8,771 bytes)
71. Re: [Amps] turns = henries question (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sun, 22 Feb 2009 12:31:13 -0800 (PST); Hi Gary, Not to contradict the all knowing Wikipedia but, 45 TPI is #24 enameled. W' is likely listing bare sizes. With your other dimensions constant: Incidently, odd numbered wire sizes are very ra; /archives//html/Amps/2009-02/msg00649.html (9,492 bytes)
72. Re: [Amps] Digital read out (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Thu, 26 Feb 2009 11:12:16 -0800 (PST); Hi John, I've done some of that. For roller coils and vacuum caps, I use 2K-10K ten turn pots (Bourns, Helitrim, Spectrol) with 1/4" shafts. You can just count the turns on a roller coil to judge the; /archives//html/Amps/2009-02/msg00688.html (9,407 bytes)
73. Re: [Amps] Peak Reading Addon For Wattmeters... (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 6 Mar 2009 12:29:42 -0800 (PST); <snip> <snip> Hi Scott, http://wc6w.50webs.com/wc6waccy/index.html?fr40.html I've used the same basic circuit for peak reading on all kinds of meters. I grew to like the delayed release function so m; /archives//html/Amps/2009-03/msg00220.html (7,809 bytes)
74. [Amps] GI diode module ratings? (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 6 Mar 2009 12:34:25 -0800 (PST); A bridge worth of GI diode modules from 1976 fell out of the time closet. The part number, likely a house number, is: 051-4385 The are potted, 3/4" square cross section, with faston terminals out the; /archives//html/Amps/2009-03/msg00221.html (6,904 bytes)
75. [Amps] Wanted: Some odds & ends! (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Sat, 7 Mar 2009 10:37:35 -0800 (PST); Odd parts I'm seeking to complete a couple of radio projects: 16 MB, 30 Pin, SIMM, DRAM Modules (2 pieces) The Top & Bottom front frame rails including their mounting ears, from a 17" wide Hewlett Pa; /archives//html/Amps/2009-03/msg00233.html (7,363 bytes)
76. Re: [Amps] Microwave Transformers? (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Tue, 10 Mar 2009 09:55:55 -0700 (PDT); Hi Scott, You may find this old thread of interest: http://lists.contesting.com/archives//html/Amps/2006-03/msg00304.html 73 & Good morning, Marv WC6W http://wc6w.50webs.com/ ________________________; /archives//html/Amps/2009-03/msg00283.html (8,122 bytes)
77. Re: [Amps] HV PS transformer (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Wed, 11 Mar 2009 15:16:38 -0700 (PDT); Hi Paul, I conjured up a simple solution for winding that style of transformer a while back. "Standard" Teflon isulated wire is typically rated for 600 volts. The 3KV rated stuff is too thick. Instea; /archives//html/Amps/2009-03/msg00328.html (11,233 bytes)
78. Re: [Amps] HV PS transformer (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Thu, 12 Mar 2009 10:08:34 -0700 (PDT); Hi Carel, Take a look at CREE. http://www.cree.com/products/power_docs2.asp I'm using a phase modulation scheme at 100 KHz. And am currently investigating, at low power (250 watts), 192 KHz. 73 & Goo; /archives//html/Amps/2009-03/msg00347.html (12,006 bytes)
79. Re: [Amps] winding an HV transformer (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Tue, 31 Mar 2009 19:56:35 -0700 (PDT); Hi Alex, The cores are Magnetics 44916-TC-J. The original article stacks 10 of them (enough core for 8-10 KW!) which allows for the meager winding. I did the math long ago; The cores are run at 1200; /archives//html/Amps/2009-03/msg00561.html (11,918 bytes)
80. Re: [Amps] Radio Switch/Multi-Tech (score: 1): Author: Radio WC6W <wc6w_amps@yahoo.com>; Date: Fri, 24 Apr 2009 08:42:26 -0700 (PDT); Hi Arne, I've reworked a few of those using a small hardwood block with a hole drilled in it to back up the part. An old pin punch ground down to the proper size plus a small hammer complete the task; /archives//html/Amps/2009-04/msg00315.html (8,523 bytes)

Current List: 61 - 80
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10]