Tube Amp Archive

yeah i have loads more, but it's so well documented as you say, i'll keep them to myself..

oh yeah here it is.. 102!!!!!

lovely

Yeah i'm thinking along similar lines, i've kept the Vib channel pretty much stock, i've changed the feedback resistor to a 4.7k, i've changed the first channel cathode to 2.7k and .68mf, i've also serviced the entire amp with new resistors and caps wherever, oh i have changed the mid resistors to a...

Checked board for obvious looking faults, next checked the filter caps only to find two of the three 20uf caps had blown apart, they looked to be the original brown paper ones so i guess they just failed with age. Thanks for all the replies so far, anyone know of any good mods that can be done to in...

Thanks, i'll have a dig around, what should the choke read??

Hi Folks, i've recently bought a non working Bandmaster, the choke has been replaced in the past with a non original looking one and some wax has dripped into the bottom of the cabinet. What i'm asking is could this just be the problem? how do i test for a faulty choke? The amp is powering up but wi...

Hi again folks, i forgot to say the Bassman has already been hacked around (not by me) so i dont mind starting on this one, i have a couple of lovely Blackface combo's i wouldn't dream of tearing up, i'll keep everyone posted and in the meantime if anyone wants to post a fully tweaked Norm Bob Dogea...

Hi folks, i'm about to start building my first Dumble style clone using a Blackface Bassman as a donor, i've read all the posts and all the threads and would love anyones opinion of the best layout to start with, with so many different layouts floating about i'm becoming confused, someone please gim...