What's your original Zenith part number?? - the transistor may only be marked with a suffix, but the prefix will be 121- . Zenith made some Horizontal Output Transistor replacements as kits, with the skinny clear tube of Monkey-Snot heat sink compound and mica insulator. I remember the 4-lead safety cap CCII sets had a subbed horizontal transistor that didn't come as a kit - most others came simply by their 121- number. I've got some used-but-good Horizontal Output Trannys, but a part number is what would help right now.
Cheers,
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Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
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