Hi,
I am in the process of overhauling  a Bryston 2B -LP ca. 1990 Serial  207634 , Main Amp.
(In one channel,  one of the supply line capacitors (ROE 4700 uF, 50V, 105 deg C) had deteriorated.
Replaced all those 4 ROE's Supply line capacitors (2 in each channel)  and 6x 470 uF Nippon Chemicon 470 uF 16V 105 deg.C. electrolytic Caps.
However, in the process, unfortunately I damaged the Power Switch.
Can you please provide me with the Details (Type/manufacurer/etc.) of this mains/power switch ? and possibly a source where to purchase it.
Also (if possible) , I would like to order one full set of black Robertson screws which retain the lid and the front heatsinks, in order to fully tidy up this amp. 
I believe this  AMP was reviously used in an IMAX movie theatre in Rotterdam, Holland, but it has survived very well.
I would really appreciate your help!
Kind regards,
Martin (the Netherlands).