Marshall Major Blowing Power Fuse

[dstrat]

according to the older 1968 schematic the yellow is bias CT and green is heater CT.

but its always best to verify with meter IMO.

[catalin gramada]

according to the older 1968 schematic the yellow is bias CT and green is heater CT.

but its always best to verify with meter IMO.

That.s good infos.Thanks. Oh ,yeah , it is a note in generic 200w Major schematic you posted.Bias CT is Yellow wire. In this case lift just yellow wire and run it directly to bias board. But always better to check first
There are allready some errors like blue-yelow-blue for bias winding. There are pink as I saw
The green wire is indicated as be heater CT or electrostatic shield. Let it in place