I not being a relay expert either, I wonder if the slow brake is due to
some sort of residual "permanent" magnetism on the core of the relay???
Maybe just a demagnetizing might help the problem??? Phil
Scott Townley wrote:
>
> I recently acquired some coaxial relays very similar to the DK-60 type (but
> there are no markings on them). They have 12VDC coils. I was surprised to
> find that although these relays "make" quickly (not measured but, you know,
> apparently right when coil voltage switched on) they "break" VERY slowly,
> at least 500msec after 0VDC and one of them literally 2+ sec after 0VDC.
>
> Not being a coaxial relay expert, is this how DC coils act? Do relay
> manufacturers have an option for slow break that I don't know about? Any
> suggestions on how to address the issue? I don't expect QSK operation but
> I think we'd all agree that 1/2 sec break is pretty darn slow.
>
> PS I have some marked DK-60 relays with 6VAC coils and they are
> "instantaneous".
>
> TIA,
> Scott Townley
> nx7u@arrl.net
>
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