Topband: Solid state relays for a Commander 2500

[k8gg at voyager.net]

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