Intact Audio

Yo Dave, My understanding of Guido's board is that it behaves as a CCS at HF and voltage source at LF - that way the tube essentially gets constant voltage operation (which is the correct way to operate them filaments) as far as DC goes but the audio signal sees a nice high impedance. It may be that...

Allo guys, This is starting to get quite interesting... cheers Dave & J. Dave - funny you mention the negative supply and the interstage that can handle 2kV... that's exactly what I have from Pieter for my long dreamed of 450TL SE project. Basically got Pieter to make me a 1: (0.75+0.75) for 421...

Allo Dave, What do you reckon could be cooked up using these cores? talk to jarek... he has some AMCC-800's :-) Aye, I know... not that I'm going for -1000s just as a pissing contest :-) Interestingly, the Metglas DC Reactor program alludes to the existence of even bigger cores, can't see them anyw...

Allo Dave, What do you reckon could be cooked up using these cores? I was thinking enormous airgap, a truckload of turns, a load of Lpri and, very importantly, to hell with the top end. Looking at the mag curves on metglas site, seems like they could give a holy-grail-esque performance with 6C33 (in...

Hi Lester, Near Ann Arbor? Not quite; I'm actually across the pond in Blighty... Thanks for the notes on the player; fear not, the clock will be next. I'm not sure if removing those resistors is a good thing, even if you could design a transformer that didn't present a killer load up top; in conjunc...

allo folks, Well I just finished modding my XB940... I was worried I'd fried the board by being really gung-ho about handling/static so it's a bit rushed/proof of concept. What I did was to desolder the current pulse chips (the DILs). Then, underneath the board, there are 8 small value SMT resistors...