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Old 30th Dec 2018, 7:56 am   #9
Diabolical Artificer
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Join Date: Jul 2009
Location: Sleaford, Lincs. UK.
Posts: 7,636
Default Re: Marshall 1930 clone

What are you after exactly? First not a loud amp but at the same time you want that distortion valve amps give when overdriven and that all elusive "sound".

If you read Valve Wizard's site he goes into great detail about the different tones and sounds you can get by biasing a valve a certain way, changing the cathode resistor etc. The OPT has a lot of influence too (not forgetting the guitar, it's PU's, it's tone control's, strings, body etc, etc).

One approach is to find an amp that has "it", use the front end of this to drive a low OP stage. You could use a QQV03-10 (2x 5w beam pentodes in one bottle) as the OP stage or go Class A SE, but this present's it's own problem's. Whichever, I think you'll find it easier to build your own than random amp building or buying, that way you'll find "it", but the road may be long and hard : )

There is of coarse another way, that's to use amp/cab software, I've heard this has come on leaps and bounds in recent years though haven't tried it recently

One other good source of info is the AX84 Project, those lads over there know a lot about guitar amp building - http://ax84.rru.com/projects.html. This - http://www.guitarstudio.tv/documents...Amplifiers.pdf is well worth a read too, it is one the best sources of info re guitar amp building.

Andy.
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Last edited by Diabolical Artificer; 30th Dec 2018 at 8:05 am.
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