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Total 13 documents matching your query.

1. [AMPS] 50~ vs 60~ ??? (score: 1): Author: w2ox@pop.fast.net (A.AIMETTE); Date: Sat, 02 Jun 2001 01:03:10 -0400; This may be a well known topic, but not to me! What happens when you operate a USA 60~ hi power amp on 50~? Does the filament voltage change? B+ voltage changes? any info would be helpful? thanks aga; /archives//html/Amps/2001-06/msg00004.html (7,641 bytes)
2. Fwd: [AMPS] 50~ vs 60~ ??? (score: 1): Author: ToddRoberts2001@aol.com (ToddRoberts2001@aol.com); Date: Sat, 2 Jun 2001 01:17:28 EDT; --part1_55.165ef97f.2849d0e8_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Don't do it ! Unless the power transformer is rated for 50 Hz operation it will most; /archives//html/Amps/2001-06/msg00005.html (9,826 bytes)
3. [AMPS] 50~ vs 60~ ??? (score: 1): Author: Uwe.Egen@t-online.de (Uwe Egen); Date: Sat, 2 Jun 2001 09:44:16 +0200; A.AIMETTE schrieb: Hi Alex, A big one P.Dahl does not show negative effects but a small transformer with less iron will saturate a bit more (Gauss). Results, higher temperature at load and no load. O; /archives//html/Amps/2001-06/msg00007.html (8,434 bytes)
4. [AMPS] 50~ vs 60~ ??? (score: 1): Author: W0YR@aol.com (W0YR@aol.com); Date: Sat, 2 Jun 2001 08:11:36 EDT; Uwe is right. I lived in Moscow 2 1/2 years and Budapest 4 years and managed to cook the original plate transformer in a Henry 2K during a contest, even with a fan running on it. It grunted a LOT. Re; /archives//html/Amps/2001-06/msg00008.html (8,104 bytes)
5. [AMPS] 50~ vs 60~ ??? (score: 1): Author: 2@vc.net (2); Date: Sat, 2 Jun 2001 05:59:39 -0700; /\ The I^2R heating in 60-Hz transformers that are operated on 50Hz comes primarily from the primary. The two fixes are: reduce the primary v. proportionately. or add turns to the primary. Decreasin; /archives//html/Amps/2001-06/msg00009.html (8,891 bytes)
6. [AMPS] 50~ vs 60~ ??? (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Sat, 2 Jun 2001 15:15:52 +0100; Henry amps of the 2 x 8874 vintage had a variety of problems on 50Hz. First was core saturation because the transformer was too small; second, the tuning cap for the smoothing choke was designed for; /archives//html/Amps/2001-06/msg00010.html (8,977 bytes)
7. [AMPS] 50~ vs 60~ ??? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Sat, 2 Jun 2001 11:44:35 -0500; I suspect that the problem lives on, Ian. Most Henry models have tuned chokes in the power supply. Henry does offer many voltages and choice of 50-60 hz for most models, so drop-in replacement parts; /archives//html/Amps/2001-06/msg00013.html (8,605 bytes)
8. [AMPS] 50~ vs 60~ ??? (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Sat, 02 Jun 2001 09:56:20 -0700; It depends. Some transformers in US-made equipment are rated for 50/60 Hz and others are not. I used an SB-200 in Israel with no problems. However, if the transformer is not explicitly rated for 50 H; /archives//html/Amps/2001-06/msg00015.html (8,195 bytes)
9. [AMPS] 50~ vs 60~ ??? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Mon, 4 Jun 2001 07:36:33 +1200; It is most unusual for transformers of a size commonly used in the amateur service and rated 60Hz to "burn up" when used on 50Hz. Worst case is usually poor regulation. If the 60Hz device "burns up"; /archives//html/Amps/2001-06/msg00031.html (9,501 bytes)
10. [AMPS] 50~ vs 60~ ??? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Mon, 4 Jun 2001 07:42:37 +1200; More: The problem with the 2K was probably not the transformer but the tuned choke. Adding C would shift in to 100hz and restore the regulation. True, the core will saturate sooner at 50Hz but tthis; /archives//html/Amps/2001-06/msg00032.html (10,255 bytes)
11. [AMPS] 50~ vs 60~ ??? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Mon, 4 Jun 2001 08:35:17 +1200; Hi Paul et al: We have been down this track on this reflector before. 50Hz at 230 or thereabout volts is the common mains supply in the UK, Australia, New Zealand and quite a lot of other places. It; /archives//html/Amps/2001-06/msg00035.html (13,544 bytes)
12. [AMPS] 50~ vs 60~ ??? (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Tue, 12 Jun 2001 09:46:37 +1200; I am no guru on transformers, but would be surprised if 50-60 Hz shift needed anything like 30% more iron for equal performance. Is there someone on the reflector who has transformer design tables/so; /archives//html/Amps/2001-06/msg00097.html (14,913 bytes)
13. [AMPS] 50~ vs 60~ ??? (score: 1): Author: phil@vaxxine.com (Phil (VA3UX)); Date: Mon, 11 Jun 2001 20:38:32 -0400; I've designed and built a few Barry. Text e-mail doesn't lend itself to presenting the equations in a readable form. But it really isn't needed in this case. The iron difference is simply the ratio o; /archives//html/Amps/2001-06/msg00098.html (17,047 bytes)

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