I seem to have blown up a LM317K TO-3 in my hicap - can't see what else it could be, not exactly a complex circuit, there is c.40Vdc going in, nowt coming out on one regulator, c.25Vdc on the other ... the resistors are all intact so ...
I know Naim did a selection job on these to filter out the damn noisy from the normal, and if you were lucky the surprisingly quiet from the normal, but let us assume most of us will "get lucky" and not get a noisy regulator, the issue for me is where are these available from now?
I can't see much out there, and what I can find is daft pricing £30 for a single regulator, before delivery, but I suppose that is not unusual for essentially obsolete parts.
Oh, I should say, I am aware I can replace the hicap PCB with 3rd party replacement improved parts, that is great, and I am exploring that option, I am just trying to fix this hicap PCB at this time ...
I know Naim did a selection job on these to filter out the damn noisy from the normal, and if you were lucky the surprisingly quiet from the normal, but let us assume most of us will "get lucky" and not get a noisy regulator, the issue for me is where are these available from now?
I can't see much out there, and what I can find is daft pricing £30 for a single regulator, before delivery, but I suppose that is not unusual for essentially obsolete parts.
Oh, I should say, I am aware I can replace the hicap PCB with 3rd party replacement improved parts, that is great, and I am exploring that option, I am just trying to fix this hicap PCB at this time ...