Replacement capacitor cans for Drakes are available
at http://www.hayseedhamfest.com/capkit.htm
It also shows the specs.
73,
Bob WW3QB
________________________________
I am in the process of refurbishing a T4XB that has
been significantly modified. (This is more like a detective story and whodunit
or done what?)
The can electrolytic which I believe is a
combination of C129 and C140 was removed from the T4XB and a metal plug was
fitted to the chassis.
I have a manual I downloaded and in the spare parts
list is the following entry for a combination electrolytic
C129 = 20 Mfd @ 250 Volts
C140 = 10 Mfd @ 25 Volts
The schematic from the same downloaded manual shows
C129 as being 60 MFd. In this T4XB, C129 has been replaced with a 60 MFd @
350 Volt radial electrolytic that was cable tied underneath the chassis to
hold it in place.
Thus two questions:
1) Which is the correct value? (I would think
having the larger value of capacitance is more desirable especially since this
is in the plate circuit of the 12AX7.)
2) I have no problem with having something
different in the radio so long as it is electrically correct. But is there any
chance the dual electrolytic originally installed is available from some
source.
The can as originally installed appears to have no insulating ring and the
three
ears on the can were simply bent over and soldered to the chassis. Or is on the
"unobtainium" list?
Thanks in advance.
Pete N6QW
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