Theres your answer Jon...... I didnt get msg til last nite.
The Zenith kit is 800-860 . Often on E-bay.
BE VERY CAREFUL TO CHECK THE VALUE !!
The 13" 13GC10 + & the 17" & 19" EFL jugged sets used a different value.
Orange ones did fail. Either shorted popping breaker or opened causing
no HV. Never had one fail with causing too much HV.
Remember the blue ones in Warwick sets but never had a fail.
They were used in that terrible 19" with an RCA bonded yoke set.
Early GE SS sets used a 2 lead white cap behind the HOT.
went left & right. Instant death for the HOT. Change any white ones,
good ones were blue & from Europe IIRC. The white ones would
come apart by pulling on the leads even if still "good".
Maggy same as Zenith. Change any white ones. Sets with
703744-## reg modules also had a shut down. Too much HV would
cause the hoz osc to go way off with narrow pix to prevent disaster.
The symptom is usually the reg board or PC cons.
Other sets with this type SD circuit were RCA, Panny, Hitachi
& probably others. Can be very confusing....
73 Zeno
LFOD !