does anyone know the original brand and tubes that were used in the jcm 800 2203 (NOT reissue)? my dad has one as wants to get new tubes for it, he replaced the originals with groove tubes and said it hasnt been the same since. this was back in the 80's as well so he doesnt have them around still. any help is appreciated
Pretty sure they were Teslas. The closest thing to that these days (unless you hunt down NOS) are JJ. They are made on the same machines but the materials are a bit different and the old Tesla dudes all retired so they are made by different men. Still, they will get you pretty close to original.
Gilchrist custom
Yamaha SBG500
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100

Cathbard Amplification
My band