Audio Research D115 mkii has a failing power relay.

[huffmanrfr]

Power relay switch in my ARC D115mkii needs to be replaced.
Cleaned up the replay switch contacts and the switch pulsates emitting an eeee sound.
When you take a wood stick and press the relay the amp fires up and plays fine no buzzing sound.
Anyone know where I could source a replacement, or have access to a parts list for this amp?

 

[Addicted to hifi]

Welcome to wbf.I cart help you out but hopefully someone will.

 

[Lee]

Call Service at Audio Research in Minnesota.

 

[DasguteOhr]

Power relay switch in my ARC D115mkii needs to be replaced.
Cleaned up the replay switch contacts and the switch pulsates emitting an eeee sound.
When you take a wood stick and press the relay the amp fires up and plays fine no buzzing sound.
Anyone know where I could source a replacement, or have access to a parts list for this amp?

If the relay makes a permanent clacking noise, then something is wrong with the coil supply voltage and the relay may not be defective
Shematics unfortunately no type designation of the relay

P.S take a photo from relay

 

[microstrip]

The relay coil is fed from the tube filaments DC and the amplifier works fine with the wood stick, my bet would be either the resistor in series with the coil is damaged or the relay contact is burnt. If it is possible to take the cover or the relay out cleaning and polishing the contact can assure some extra time. The relay is used as part of a soft start circuit.

Assuming the relay is similar to the one used in the D70, it is a 12VDC , 120 ohm coil 30A power relay.