I recently traded for a Metaltronix M-1000. It needed a little work and I have it running but it does eat a 12AX7 in V2 every once in a while. I have ordered new 9-pin sockets because I noticed the sockets were mangling pins. I tested all the rails and they match what Lee Jackson said they should be on his maintenance video on youtube. (Cool of Lee to give that away for the m-1000) Sounds killer when it runs, I'm just trying to work out the bugs...
On 6V PS rail after the rectifier, the zener was burned so I replaced it. That "fixed" the amp but not completely. Beyond a shorting socket, what should I look for? It seems to me that the zener blew up because there was a short between the rails and one of the higher voltage connections either through the socket itself or because the mangled pins are pushing the socket tabs into each other somewhere.
Schematics here: Metaltronix Schematics
zener photo: Picasa Web Albums - Thomas
On 6V PS rail after the rectifier, the zener was burned so I replaced it. That "fixed" the amp but not completely. Beyond a shorting socket, what should I look for? It seems to me that the zener blew up because there was a short between the rails and one of the higher voltage connections either through the socket itself or because the mangled pins are pushing the socket tabs into each other somewhere.
Schematics here: Metaltronix Schematics
zener photo: Picasa Web Albums - Thomas
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