Casio CZ/ VZ/ FZ - Pro Series

On Mon, Sep 10, 2018 at 12:28:26PM +0000, sean@... [CZsynth] wrote:
> Here is what I have gathered. 
> 
>  - The relay in the CZ-101 is an Omron G2E-187P-H-M 5VDC, which is no longer being made. 

Just get rid of it, bypass it.  It's a bloody stupid thing that doesn't
need to be there.  If you absolutely *must* have a muting circuit, use
a resistor and bipolar transistor like everyone else does.

Relay contacts develop a film of tarnish on them that is non-conductive.
In RF we arrange to pass a few tens of mA through them where they're
used for switching filters, but that's not done at audio because it
would introduce clicks and pops into things which is exactly what it's
there to prevent.  This means that without a wetting current the
contacts quickly fail.

-- 
Gordonjcp