"Phil Allison" wrote in message
...
:
: Hi to all the Quad fans,
:
: I have been refurbishing a circa 1977, Quad 405 that has
been long out of
: use.
:
: The dark red, PCB electros were found to have all
completely failed - the
: 47 uF and 100uF ones on the amp PCBs tested virtually open
circuit. The
: 10uF, 40 volt bi-polar ones on the triac PCB had
depolarised, becoming caps
: of about 65 uF and only a few volts.
:
: All the caps are unusual in that they appear to be
*hermetically sealed* in
: hard plastic cases with epoxy filling around the leads. I
have seen the
: same caps fail the same way in old 405s before.
:
: Any info on these caps ( maker ?) or comments ?
:
:
:
:
:
: ....... Phil
:
:
:
Hey Toaster Boy, keep your grubby little fingers out of it!
Remember what happened the last time you went poking around
inside some Quad gear?

Some good advice - take it to a professional that knows what
he is doing. What about your pals TW or PT?

TT