Slow delay also equals slow pickup unless you add another relay contact.?
Don W4DNR?
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-------- Original message --------
From: Jim VE7RF <jim.thom@...>
Date: 2/26/20 11:56 AM (GMT-06:00)
Subject: [ham-amplifiers] How to make a relay slow release ?
I'm? going? to? use a? resistor to? slow? down a blower....on? RX.? ? ?Resistor? shunted? on? TX.....? with a DPST - NO Kilovac vac? relay.? (contacts in? parallel).
(12? vdc? coil,? 500? ohm? coil? resistance).??
I? want? to? make? the? relay slow? release,? like? .75? to? ?1 sec? release.? ?I? was? thinking of? a RVS? connected? diode? across? the? coil,
+ an? electrolytic? across? the? coil.? Electrolytic? wired? with? same? polarity? applied? to? coil.? ?10,000uf? to? 25,000uf? ?(on? paper)? should? work.?
The? idea? is? to? keep? the? blower at? max? speed? during? TX,? even? when? VOX? drops? out.? ?Typ I? use .375 sec? vox? delay.
Jim? VE7RF? ?
