| To: | <amps@contesting.com> |
|---|---|
| Subject: | [AMPS] L4B |
| From: | measures@vc.net (Rich Measures) |
| Date: | Fri, 16 Oct 98 00:07:24 -0800 |
> > >On Thu, 15 Oct 1998 21:58:25 +0100 "Ian White, G3SEK" ><G3SEK@ifwtech.demon.co.uk> writes: >> >SNIP > >>"What price" comes into this very literally. In Europe the classic >>8.2V 50W zeners are very hard to find. > >Ian...in the Colonies: > Anywhere from $7 -15 depending on voltages and who has what when. K2AW >is often a very good source. > 1N5400 series,3a avg. diodes are around $0.25 each. A string of 'em provides adjustable cathode bias, and can withstand 200a peak during a "glitch" -- a current that will destroy a 50w zener in mS. Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm |
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