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Obtained original Zenith 136-114-13 replacement fuses. Also located and obtained similar fast acting Buss 0.6amp fuses for testing. Powered up the set with conv yoke and defl cables disconnected at chassis. Used both an original Zenith fuse and a later day Buss equivalent fuse. Fuse did not activate. Reconnected both cables. Tested with both fuses and none activated. Ran a resistance test of both fuse types. The original Zenith fuse, subtracting lead resistance, indicated 1 ohm resistance. The Buss replacement fuse indicated .5 ohms resistance. Went through both boxes of fuses with same results. At 1ohm, measuring voltage drop across Zenith fuse in circuit might give some indication of amperage across fuse.
The only component missing from the circuit now is the Horizontal output transistor. Will test and inspect and if good will reinstall transistor.
By the way. I also have a 1976 Zenith 19" portable TV 19GC45Z1 with a similar circuit design and many identical parts. Used it in resistance testing between vertical sections of both sets. Found results to be very similar.
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