Bryston Amplifier Repairs

Bryston 3BST Stereo Amplifier

There are several tantalum capacitors in this amplifier, whenever I see these I suspect them straight away. Two had morphed into resistors and had taken out 11 volt Zener's in the op-amp supplies. Replaced them all, along with the 1N4741 Zener's which were short circuit. Also replaced the voltage regulator LM317 as it may have been possibly over-loaded with capacitors being short circuit. The switches on the back panel were treated to a dose of switch cleaner as some contacts were open circuit. Powered up ok after.