Valve JR: Bitmo or Mercury Mag?

SomethingCreative

Bitmo is a lot cheaper...but what's the trade off? I've heard it doesn't eliminate the hum but I don't really know much about them

exhausted

bitmo just sells kits that alter various components of the circuit itself, like adding a tone control or whatever. i have their tone control added to mine and i really like it.

if you have a version 1 amp, the hum is coming from the fact they used AC voltage for the tube heaters instead of DC. the later ones use DC and are totally quiet. i don't think either kit really addresses that.

mercury magnetics changes the transformers in the amp (and i assume some other things) which is basically akin to a heart transplant. better transformers equals better tone essentially.

mercury transformers are pretty much top of the line.

i did replace the output transformer in mine but not with mercury.

All Those Yesterdays

exhausted probably knows for sure, I haven't really followed the latest version of the Valve Junior, but didn't ephiphone alreayd put a better transformer in it? Maybe no mercury but some improvement?

exhausted

yes, the latest ones have a slightly beefier output transformer from what i understand.

Piper At The Gates

Mercury Magnetics Transformers are unbelievable. They are well worth the price if you want to turn your Valve Jr. into a really smokin class-A amp.