Search String: Display: Description: Sort:

Results:

References: [ +from:Gudguyham@aol.com: 815 ]

Total 815 documents matching your query.

201. Re: [Amps] L4-B Power Supply (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 4 Jul 2006 11:49:36 EDT
Most of the capacitor choices I found were of the type using snap in terminals. Into what do these terminals snap? Can I just mount the capacitors and then solder leads to their snap in terminals, or
/archives//html/Amps/2006-07/msg00189.html (6,759 bytes)

202. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 4 Jul 2006 11:57:00 EDT
What kind of plug would it have? It would have the basic 240 volt receptacle which requires no neutral connection. Like the receptacle that one would plug an Ameritron AL-1200 or the like. I think th
/archives//html/Amps/2006-07/msg00190.html (8,943 bytes)

203. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 4 Jul 2006 12:18:12 EDT
Lou, that wouldn't necessarily be true. If you had a 240 Volt device that didn't have any 120 Volt needs at all, you would still HAVE to use that plug to get the power from the generator. In that cas
/archives//html/Amps/2006-07/msg00191.html (10,277 bytes)

204. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 4 Jul 2006 15:06:54 EDT
Newer electric range plugs and sockets have 4-conductors. Yes, as they should. They have 120v requirements hence the neutral wire is needed making it a 4 wire system. ________________________________
/archives//html/Amps/2006-07/msg00195.html (8,635 bytes)

205. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 4 Jul 2006 15:27:30 EDT
As how I was taught in the last NEC 2005 class I had a few weeks ago, it all depends on the 'AHJ' or Authority Having Jurisdiction. If he says 3 wires, then three wires it is. If four then four. The
/archives//html/Amps/2006-07/msg00196.html (8,537 bytes)

206. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 07:20:39 EDT
During an electrical outage, I switch off the mains breaker, connect a home made West Hollywood cable (two male connectors) from the generator's 240v outlet to the 3-wire outlet for the Plywood Box A
/archives//html/Amps/2006-07/msg00208.html (9,146 bytes)

207. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 07:23:59 EDT
I can understand why ranges, heaters, AMPLIFIERS and other high power devices need a 240V supply, and I can understand why in North America that supply is balanced around neutral. What I don't unders
/archives//html/Amps/2006-07/msg00209.html (9,223 bytes)

208. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 07:30:35 EDT
What guages for which wires would be required for a 4-conductor 50a outlet? assuming you bought a pre-fabed cable like Romex 6-3 w/ground the 3 insulated wires would be #6 and the bare bond wire woul
/archives//html/Amps/2006-07/msg00210.html (8,842 bytes)

209. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 10:09:09 EDT
This is an interesting one. Is it assumed that you can't get a fault such that the full fault current flows down the ground (i.e. the protection) wire? Such fault current being greater than the norma
/archives//html/Amps/2006-07/msg00217.html (10,132 bytes)

210. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 10:50:02 EDT
A double-male patch cable is only dangerous if both breakers are not switched off when connecting it or disconnecting it. What is the other hazard, Lou? Rich, people make mistakes (even you) and some
/archives//html/Amps/2006-07/msg00218.html (8,865 bytes)

211. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 11:10:39 EDT
Only if the two loads have identical power factors. If one is capacitive and one is inductive, the currents in the neutral won't cancel. OF COURSE fraction of a second< OK. We have to consider the po
/archives//html/Amps/2006-07/msg00220.html (9,497 bytes)

212. Re: [Amps] Safety grounding - was Mains Isolation Transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 5 Jul 2006 11:32:02 EDT
Not if they didn't touch the pins while standing in water barefooted, or toss it in the bathtub. CHORTLE _______________________________________________ Amps mailing list Amps@contesting.com http://l
/archives//html/Amps/2006-07/msg00221.html (8,359 bytes)

213. Re: [Amps] FL2100B (score: 1)
Author: Gudguyham@aol.com
Date: Tue, 11 Jul 2006 18:24:13 EDT
Could be a dirty contact on the trans/rx relay? Try a cleaning of that and see what happens. Lou _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
/archives//html/Amps/2006-07/msg00336.html (6,241 bytes)

214. [Amps] WTB: Plate transformer (score: 1)
Author: Gudguyham@aol.com
Date: Wed, 12 Jul 2006 15:48:22 EDT
Looking to purcahse a small footprint plate transformer. I can use something for a doubler circuit with a secondary of 1000-1300vac at about 1 amp or better. I could also go with a FWB and use a tran
/archives//html/Amps/2006-07/msg00350.html (6,538 bytes)

215. Re: [Amps] Filament life (score: 1)
Author: Gudguyham@aol.com
Date: Sat, 15 Jul 2006 06:28:58 EDT
I was in commercial broadcasting for about 25 years, and filament life was an issue. What puzzles me, however, is Alpha's recommendation to turn off their amps if one is not going to use it for two h
/archives//html/Amps/2006-07/msg00416.html (7,518 bytes)

216. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sat, 15 Jul 2006 11:22:05 EDT
Since you mentioned that, why does the front of the SB-220 say "2KW LINEAR AMPLIFIER" if it was designed as a 1kW input amp? I've often wondered that... Joe, N3JI The SB-220 was rated at 2KW PEP inpu
/archives//html/Amps/2006-07/msg00420.html (7,057 bytes)

217. Re: [Amps] Filament life (score: 1)
Author: Gudguyham@aol.com
Date: Sat, 15 Jul 2006 11:28:01 EDT
Lou == The SB-220 uses a current-limiting type filament transformer that allows no more than 60% of the 3-500Z's rated filament inrush current to flow, so step-starting the filament is unnecessary. H
/archives//html/Amps/2006-07/msg00421.html (7,260 bytes)

218. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 08:24:22 EDT
I don't see how. You don't see how....What? Am I mistaken that the Sb-220 was rated at 2KW PEP input? It does say it on the front panel, though it does not say "input" it does say 2KW amplifier. Or..
/archives//html/Amps/2006-07/msg00439.html (7,790 bytes)

219. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 11:28:35 EDT
There has been a lot of discussion over the years, especially in the early days when one did not have a PEP reading watt meter. So, the rule of thumb "at the time" was that PEP was ~ twice the avera
/archives//html/Amps/2006-07/msg00448.html (8,091 bytes)

220. Re: [Amps] Transformers (score: 1)
Author: Gudguyham@aol.com
Date: Sun, 16 Jul 2006 19:17:19 EDT
Lou -- A question. I measured 400v-pk into 49.9-ohms @ 7MHz with a SB-220. How many PEP W is this? The way I figure it, that is 3200 watts at that point in time. Sounds pretty high to me. That is lik
/archives//html/Amps/2006-07/msg00458.html (8,112 bytes)


This search system is powered by Namazu