Thanks for all the replies to my question about the Crydom solid state
relays.
I have found that most of the Commander 2500's use
Crydom A2425 relays. This means the control is 90 - 280 VAC, the
switched voltage is nominally 240 VAC (up to 280) and the current rating
is 25 amps.
They are now stocked at mouser dot com and other
on-line electronics parts dealers.
They are not usually
available through local electric/electronic distributors such as
All-Phase.
73
George
>
> Hi All,
>
>
Sorry to be asking this question here, but the
> responses on
other reflectors
> are not helping much.
>
> A
> friend has a Commander 2500 with Crydon solid state relays that
turn the
>
> amp on and off. They are labelled
either "01750" or
> "D1750" and have about
> 25A RMS ratings at up to 280
> VAC. They also
use a nominal 240 VAC control
> voltage switched
> from
the front panel. I can find a photo of that in the
> Newark
> on-line catalog, but not the relay itself, as all current
listings
> seem to have low voltage DC control circuits for the
solid state
> device.
>
> Can anyone of you
help with this replacement issue?
>
> The existing
relays will sometimes open up without warning or any
> indication
> of a problem. Other times one cannot turn on the
> amplifier.
> The wiring and fuse, and switch have all been
checked and
> even Palstar
> (current owner) leads us to
a replacement circuit for
> these devices, which
> they
prefer to totally change out !
>
> Thanks in advance and
Happy Easter or Happy Passover.
>
> 73
>
de George K8GG
>
>
>
>
> _______________________________________________
> UR RST
IS ... ... ..9 QSB QSB - hw? BK
>
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
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