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Total 17 documents matching your query.

1. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: gjerning@flash.net (ARNE GJERNING); Date: Thu, 5 Apr 2001 23:10:56 -0600; This is a multi-part message in MIME format. --=_NextPart_000_0022_01C0BE25.AB394B20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ALPHA 77SX (2 holer) on; /archives//html/Amps/2001-04/msg00127.html (9,930 bytes)
2. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Thu, 05 Apr 2001 23:21:56 -0700; I built a 3300v power supply with the intent to use it in a 50 Hz country as well as here in the US. I asked Peter Dahl about this. I was told that the magnetizing current in the primary of a large; /archives//html/Amps/2001-04/msg00128.html (8,278 bytes)
3. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 6 Apr 2001 07:54:29 +0100; Interesting figures... so the total weight of the transformer increases as something like the square of the core cross-sectional area. Seems about right. And then the capacity of a blower with an AC; /archives//html/Amps/2001-04/msg00132.html (9,312 bytes)
4. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: phil@vaxxine.com (Phil (VA3UX)); Date: Fri, 06 Apr 2001 07:23:58 -0400; Hi Arne, If you visit Peter Dahl's website you'll see the supply frequency for some of his units listed as 50/60 Hz. This indcates that there is enough iron in the core to run at 50 Hz, which automat; /archives//html/Amps/2001-04/msg00133.html (9,693 bytes)
5. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: stevengrant98@yahoo.com (steven grant); Date: Fri, 6 Apr 2001 06:30:41 -0700 (PDT); i think some larger capacitors may also be in order 73 STEVEN GRANT W4IIV :-) __________________________________________________ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://p; /archives//html/Amps/2001-04/msg00139.html (9,193 bytes)
6. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: 2@vc.net (measures); Date: Fri, 6 Apr 2001 07:40:15 -0700; to ? My TL-922 is designed 50 - 60 Hz. In my opinion, 50 - 60 Hz transformer cores are about 20% heavier than equivalent 60Hz-only cores. good point The work-around is to use a DC brushless fan. - R; /archives//html/Amps/2001-04/msg00142.html (9,850 bytes)
7. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: Ian White, G3SEK" <g3sek@ifwtech.com (Ian White, G3SEK); Date: Fri, 6 Apr 2001 16:35:08 +0100; My "seems about right" was based on the notion that although the core cross-section would only need to be 20% larger, a core built from standard off-the-shelf laminations would probably be larger in; /archives//html/Amps/2001-04/msg00145.html (9,850 bytes)
8. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Sat, 7 Apr 2001 18:38:08 +1200; We run 50Hz down here in ZL. In my experience most amateur equipment eg SB220, TL922, my Viewstar PT2000A run quite happily on 230v 50Hz. Same goes for most relativley light duty equipment. Every so; /archives//html/Amps/2001-04/msg00148.html (11,302 bytes)
9. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Sat, 7 Apr 2001 18:48:38 +1200; Really amazing to find that "Here be Dragons" signs light up when some North Americans are confronted with anything that is different from what they are used to. Sometimes this is quite crazy, like s; /archives//html/Amps/2001-04/msg00149.html (11,004 bytes)
10. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: dcckc@ncn.net (dcckc); Date: Sat, 7 Apr 2001 02:31:01 -0500; And you think WE live under a rock? Dave/WB0PKK -- Original Message -- From: "Barry Kirkwood" <bjk@ihug.co.nz> To: "steven grant" <stevengrant98@yahoo.com> Cc: <amps@contesting.com> Sent: Saturday, A; /archives//html/Amps/2001-04/msg00150.html (11,008 bytes)
11. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: dcckc@ncn.net (dcckc); Date: Sat, 7 Apr 2001 05:18:07 -0500; I understand your dilemma Barry, trying to get a view of things from a distance but I doubt that the national electrical code has allowed a service entrance for a home in America to not be at the min; /archives//html/Amps/2001-04/msg00152.html (8,730 bytes)
12. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: kimba@sprint.ca (Bert Barry); Date: Sat, 07 Apr 2001 08:29:55 -0400; Please note that "North America" includes Canada and Mexico (and many other entities on the DXCC list). We in VE/VA land have been officially metric for many years now, although the transition has be; /archives//html/Amps/2001-04/msg00153.html (10,299 bytes)
13. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 7 Apr 2001 11:05:45 -0400; Hi Bert, ZL3REX said he received your card on 160. He heard you fine in spite of your using 60 Hz power mains. We have taps and dies, and can correct most bolts. It is the nuts we have a problem with; /archives//html/Amps/2001-04/msg00156.html (9,884 bytes)
14. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: kh7m@hsa-kauai.net (Jim Reid); Date: Sat, 7 Apr 2001 07:28:38 -1000; Hmmm, well, back in 1961, I made a trip to the Royal Radar Establishment in Malvern, England. Stayed at the Foley Inn. First morning, plugged my electric razor in, via an adapter. Sounded a bit more; /archives//html/Amps/2001-04/msg00159.html (8,119 bytes)
15. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Sat, 07 Apr 2001 13:57:50 -0700; No, it wasn't April 1. I too have used 50/60 Hz equipment such as the SB200 on 50 Hz without any trouble. I've also used 115v/60 Hz. US gear with step-down transformers on 230v/50 Hz. However, larger; /archives//html/Amps/2001-04/msg00169.html (8,705 bytes)
16. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Sun, 8 Apr 2001 09:17:35 +1200; Yes, I think you need to be careful when running up over 1kVA or so full load, but would be very surprised if problems showed up with magnetising current alone. Have once or twice in 50 years encount; /archives//html/Amps/2001-04/msg00170.html (9,764 bytes)
17. [AMPS] ALPHA 77SX on 50Hz (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 7 Apr 2001 18:19:13 -0400; That is correct, either for small or large transformers. You can use a transformer designed for 50 Hz on 60, but not always the other way unless the transformer has enough headroom in flux density.; /archives//html/Amps/2001-04/msg00172.html (10,098 bytes)

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