27-01-2013, 09:26 PM
well i now have a working set.
i could not reform the smoothing block 1st section still drawing 750MA after 4 hours
and that was at 60 volts!
so untill i can rebuild the can there are 2x 33mf under the chassis.
i changed C31 to be on the safe side (ul41 coupling cap) .
on applying mains i now had no hum tuned to radio 5 live exelent but very bassy
also the volume control was intermitent.
found that C37 was leaky (tone correction on vol pot) so changed it.
now working well on MW not so well on LW (only 2 stations)
i have found that the cores of T1 and T2 are loose.
so some time this week its out with the signal gen.
i am not shore about changing the rest of the black pitch caps as none read leaky.
the cabinet is polising up well..
rob t
photo shows added and changed caps
i could not reform the smoothing block 1st section still drawing 750MA after 4 hours
and that was at 60 volts!
so untill i can rebuild the can there are 2x 33mf under the chassis.
i changed C31 to be on the safe side (ul41 coupling cap) .
on applying mains i now had no hum tuned to radio 5 live exelent but very bassy
also the volume control was intermitent.
found that C37 was leaky (tone correction on vol pot) so changed it.
now working well on MW not so well on LW (only 2 stations)
i have found that the cores of T1 and T2 are loose.
so some time this week its out with the signal gen.
i am not shore about changing the rest of the black pitch caps as none read leaky.
the cabinet is polising up well..
rob t
photo shows added and changed caps
if its made by hand it can be repaired by hand







