Dana Hall's VVR Install: Marshall 50 watt Plexi 1987x

[cluster]

Hello All,

My first post here. I just installed a fixed bias VVR into a 50 watt plexi (1987x circuit). The amp came to me as a pre built clone...

[mbailey]

I built this amp for a buddy of mine. a few months ago. Lately after its been on say 30 mins or so the volume starts dropping like someone is playing with...

[Wombaticus]

Hi all

I've already been posting shots of the cabinetry over in the cab sub-forum here, I think things are now far enough along circuit-wise...

[mooreamps]

I draw up these thoughts in responce to e-mails I've received from people who expressed their concerns on my opinion how I would have addressed this issue....