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Total 8 documents matching your query.

1. [AMPS] L4B power supply (score: 1): Author: k6ndv@contesting.com (Will K6NDV); Date: Tue, 26 Jan 1999 06:31:38 -0800; I have a L4B power supply what is basically new and has not been used for many, many years. I have not turned it on yet and I would like to ask the group how to tackle this one. Thanks Will, K6NDV --; /archives//html/Amps/1999-01/msg00404.html (7,270 bytes)
2. [AMPS] L4B power supply (score: 1): Author: sheepdip@continet.com (Larry L. Ravlin); Date: Tue, 26 Jan 1999 07:49:07 -0800; Will, Put some 100w light bulbs in series with the load and run it for a couple of hours like that and then up the wattage to 200 and run it for a couple of more hours and up the wattage again etc,et; /archives//html/Amps/1999-01/msg00406.html (8,429 bytes)
3. [AMPS] L4B power supply (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Tue, 26 Jan 1999 11:37:46 -0500; On Tue, 26 Jan 1999 06:31:38 -0800 "Will K6NDV" <k6ndv@contesting.com> writes: Carefully. Preferably with a variac but if one is not availble wire the primary for 240V and plug into 120V. A step star; /archives//html/Amps/1999-01/msg00407.html (8,900 bytes)
4. [AMPS] L4B power supply (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Tue, 26 Jan 1999 17:15:59 -0000; I would make sure all the caps are discharged with a 1 Kohm 10 watt resistor , connected on insulated flying leads with insulated test prods across each cap in turn for a few seconds, before poking; /archives//html/Amps/1999-01/msg00409.html (7,728 bytes)
5. [AMPS] L4B power supply (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 26 Jan 1999 10:45:51 -0800; ? Will -- >20 yr. old electrolytics tend to loose C. I would inspect the pressure vents on the caps (white feculence =s replace all), measure each cap's C, measure the R of each cap. equalizer resis; /archives//html/Amps/1999-01/msg00413.html (7,970 bytes)
6. [AMPS] L4B power supply (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 27 Jan 1999 01:46:48 -0500; I knew someone would comment on that as I was typing it! The Drake L4 thru L7 PS uses both equalizing resistors across the caps PLUS a pair of 50K 50W bleeders. In many other amps I probably would ha; /archives//html/Amps/1999-01/msg00452.html (9,080 bytes)
7. [AMPS] L4B power supply (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 27 Jan 1999 02:14:39 -0500; On Tue, 26 Jan 1999 10:45:51 -0800 Rich Measures <measures@vc.net> writes: Similar rated caps made by CDE in the USA are available for less cost at Mouser. Look for the 381LX series. They also carry; /archives//html/Amps/1999-01/msg00454.html (9,044 bytes)
8. [AMPS] L4B Power Supply (score: 1): Author: w5hvv@aeneas.net (Roderick M. Fitz-Randolph); Date: Tue, 23 Jun 1998 21:59:36 +0600; Anyone have a fully functional L4B power supply that is surplus to their needs? If so, I'd like to know what you need to part with it. Thank you, Rod, N5HV w5hvv@aeneas.net -- FAQ on WWW: http://www.; /archives//html/Amps/1998-06/msg00224.html (6,649 bytes)

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