Mark IV Questions

[555]

pulled the IV out the closet
it was working when it was wrapped up and boxed

ok from what this guy says
on the transformer the -12 volts is not working
and tubes are little low

so can any tell me where to get a retube kit for my Mark IV

and where to get a replacement transformer

and something about the voltage reading causing the led channel readout to operate incorrectly.

i have a Eagle 500 tube amp
yes i know its not made by browing or kenrich
it just kinda blends in with the radio
and it works just fine

also have a Mark III im very fond of and would like it checked out

[mark4]

555 sent you a message. Check your mail.

As for the Mark IV not having the right voltage.
It may have a bad 4700uf cap or (2) 4400uf caps in parallel. (C5&C6). If the 11VDC supply is not working I would not suspect the transformer right off. Could be a blown internal fuse on the 11Volt supply and shorted rectifier bridge (D3). Also if it has no output the Display would not operate at all. Flickering display indicates a PLL out of lock condition. Causes can be many. But don't worry it can be fixed.