Must be the hoz AFC diodes. If so there will be 3 legs & come in
3 flavors.Sometimes 2 separate diodes are used.
1) series
2) common anode
3) common cathode.
A common fault so change it if you can get at it. These sets are not for the
faint of heart so take it slow ! I started in 1970 & we avoided them
like the plague along with GE's. We would only "make them just work again".
But sometimes you would get a real good runner.
73 Zeno
