Title: 50W Guitar amp Post by: folderol on April 06, 2008, 12:52:51 PM After years of prevaricating I really want to get my hands dirty and build another one of these. However I don't play guitar (only played rhythm over 30 years ago), so what I need is someone who is interested in using such a beast and isn't too far away!
I have two design ideas in mind. One is a classic valve job with 2 * KT88 as the output bottles. The other is a minimum feedback transistor design I've used with some success before. This has a clipping 'softener' of my own design that makes the overdrive characteristics similar to a valve amp. I don't want to attempt to get into audio cabinet design, so would want to connect the amp to a 'standard' speaker cab. Also, certainly at first, I would like to provide just a single line input (probably at around 100mV - so a guitar could in fact be plugged in directly) and volume control. My experience is that most guitarists have their own favoured effects so wouldn't particularly want them built into the amp. If anyone is interested in either of these projects (I would only be able to take on one at a time!) they could have the final unit at cost price. This would be conditional on them actually liking the result of course! P.S. When I say 50W I mean continuous sine wave power, no silly hyped up figures! <edit> I think I should point out that a valve amp typically costs 5-7 times the transistor equivalent :( Title: Re: 50W Guitar amp Post by: Wyatt on April 06, 2008, 09:54:00 PM After years of prevaricating ... Hi Will.. ..I think you meant to say procrastinating. ;) This sounds like a super deal for somebody. I don't guess you'd be moving to Oklahoma any time soon, eh? Hmm..didn't think so. Wyatt Title: Re: 50W Guitar amp Post by: folderol on April 07, 2008, 09:37:44 PM Well, they both start with 'pr' and end in 'ating' close enough innit?
Oh OK :D Sorry, mate. Not thinking of moving at all these days - 20 years ago I might have been interested! Title: Re: 50W Guitar amp Post by: Wyatt on April 07, 2008, 11:06:04 PM Well, they both start with 'pr' and end in 'ating' close enough innit? ..close enough! ;) Quote Sorry, mate. Not thinking of moving at all these days - 20 years ago I might have been interested! ..yep..I know what you mean..time slides by..anyway, the amp sounds like a cool project. All the best, Wyatt |