Biasing a vintage 100w MARSHALL

Finally fixing the Cornell Plexi 18/20 and biasing a '78 Marshall 2203 using the oscilloscope method

[@sworgan1]

I once asked Cornell for some help with one of their output transformers so I feel your pain i ended up going to the manufacturer in Poole they were great

[@Kevin-the-Just]

Is that a cylinder head next to the Cornell?

[@RiftAmps]

One of many 👍

[@udaleswanagan9568]

*promosm*