This is a last resort attempt to see if my old ARCam Alpha 6 amplifier can be (or is worth) salvaging.
The amplifier stopped working a while ago and having taken the unit in for repair the advice from the workshop is that the "power amp mosfets are short-circuited". Given the unit is from around 1993 and parts are difficult to source, is it worth persevering with or do I add it to the e-waste scrap heap.
Any advice is welcome.
DD.
The amplifier stopped working a while ago and having taken the unit in for repair the advice from the workshop is that the "power amp mosfets are short-circuited". Given the unit is from around 1993 and parts are difficult to source, is it worth persevering with or do I add it to the e-waste scrap heap.
Any advice is welcome.
DD.
If the power supply is okay, put a populated transistor amp PCB, connect to pre-amp.
If not...and you have the ability, use the cabinet.
Mosfets are available, newer one may work, Arcam itself was not very well made it seems.
Hence my advice, change to a ready board, get that with heat sink, and do this after verifying the pre amp and supply are working.
Boards are sold as suitable for a supply voltage, among other parameters, no big deal. Buy one with a 20% higher rating, say use a 60V unit if you supply is 50V.
Easier, and cheaper in time and money than fixing an old unit with difficult to find parts.
If not...and you have the ability, use the cabinet.
Mosfets are available, newer one may work, Arcam itself was not very well made it seems.
Hence my advice, change to a ready board, get that with heat sink, and do this after verifying the pre amp and supply are working.
Boards are sold as suitable for a supply voltage, among other parameters, no big deal. Buy one with a 20% higher rating, say use a 60V unit if you supply is 50V.
Easier, and cheaper in time and money than fixing an old unit with difficult to find parts.
