16
Plate Choke Inspection
Check all the solder connections carefully. Inspect the plate choke. If the plate choke has loose or overlapped
wires it needs to be put back in a single tight wrap and “re-glued”. Q-dope can be made from a mix of lacquer
thinner or Xylene and pure white Styrofoam “peanuts” used for packing. Dissolve the white packing peanuts
or other pure Styrofoam (do not use anti-static peanuts) in thinner until it is a thick paste. Paint the paste on
the coil to hold the windings in position. Allow time to dry. A dot of Gorilla Glue is fairly good end-glue at
winding ends.
Figure 22 reglue choke all units
811KS Power Supply Kit
If your amplifier has tan or sand color bleeder resistors they should be changed. The sand or tan bleeders
have proven to be failure prone. When a resistor fails all four electrolytic filter capacitors are damaged. A 50k
to 100K higher reliability resistor of suitable wattage must be used. Suitable resistors along with superior filter
capacitors are included in the 811KS power supply kit.
The small meter protection diode on the very center far right below the ferrite bead gets changed to a larger
diode that is supplied in the kit with all kits.
Figure 23 Replace sand color bleeders. Replace diode.
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