Just want to put the info. out there. If you have a SAE 2100 pre-amplifier, and hear a ''buzz'' when you turn it on, chances are that it's the switched AC outlets relay's coil buzzing.
Just changed mine with a brand new (we are in 2021), relay that i bought from Electronic Surplus in Ohio ( no affiliations).
Their item number is: 149933 part number is: VC20-1A-AC120V-K.
Exact replacement.
If you have the 2100L, i'm pretty sure it's the same deal.
It's easy enough to change but the wires are soldered on it, so you'll need a soldering iron.
There are 2 speaker relays in those pre-amps and it is NOT them buzzing, as if you turn off the speakers (A or B) those relays are not powered.
Just changed mine with a brand new (we are in 2021), relay that i bought from Electronic Surplus in Ohio ( no affiliations).
Their item number is: 149933 part number is: VC20-1A-AC120V-K.
Exact replacement.
If you have the 2100L, i'm pretty sure it's the same deal.
It's easy enough to change but the wires are soldered on it, so you'll need a soldering iron.
There are 2 speaker relays in those pre-amps and it is NOT them buzzing, as if you turn off the speakers (A or B) those relays are not powered.
That's where I get mine. I had a 2100 in for repair and that whole back compartment was stuffed with foam rubber to quiet it down, some people just never learn.
Craig
Craig