:
: I have a Sunn Solarus head and a 2-12 sunn cab.
: It is an awful task to find info about it.
The diagram is in Pittman's Tube Amp Book.
I use the
: cab.as an extension with my fender HR.The head snaps the
: fuses every time you turn it on.I know this much about
: its has ll5w and was made in '68 or '69. Any info will
: be greatly accepted.
Pull the all the tubes out and then try to turn
it on. If it still blows a fuse, you've either got
a blown power transformer or blown diode and/or
capacitor in the low voltage (for the transistors)
or bias circuit.
If it doesn't, first suspects are a bad GZ34 tube,
the 20 uF 600V capacitor or shorted choke.
Further down the list are shorted 6550's or
dud output transformer.