One thing I was never quite sure of, are the lead lengths listed
as "total" or individual?
Mark WB8JKR
On Thu, 04 Nov 1999 07:56:56 +0100 "Hans Goldschmidt" <sm5ki@algonet.se>
writes:
>
>
>----------
>If we had that CD with long forgotten articles on linears, you could
>eventually see there a copy of Bill Orrs RADIO HANDBOOK 22d edition
>writing
>about the series resonance of capacitors:
>
>0.02uF MICA no lead length 44.4 MHz
>0.002 MICA no lead length 23.5
>0.01 MICA 1/4" 10
>0.0009 MICA 1/4" 55
>0.002 CERAMIC 5/8" 24
>0.001 CERAMIC 1/4" 55
>500 pF BUTTON none 220
>0.0005 CERAMIC 1/4" 90
>0.01 CERAMIC 1/2" 14,5
>
>You can check the resonant frequency yourself with an grid dip meter (
>used
>since 1938 - remember the AEROVOX LC-CHECKER? ). Just tie the leads
>together. You can in this way cut condenser leads to your operating
>frequency. By paralelling capacitors of different resonant
>frequencies, you
>can make your decoupling more broadbanded. Remember there may be in
>many
>places harmonic currents that you must take care of. The best
>broadband
>condenser should be a multilayer chip condenser that has no leads at
>all. Is
>there any that can take the high currents in a linear? CENTRAL LABS
>858 or
>equivalent?
>
>Prosit and: hej daa de Hans SM5KI
>
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>
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