Tube Challenge!!

tomg efm3 at
Mon Nov 1 22:40:28 CET 1999's not a vco, but if you want a killer guitar amp..


>Happy Monday, everyone!
>I have been thinking about this tube vs solid state thing 
>all weekend. (Oh no!)  I would like to send out a challenge 
>to the tube gurus out there who are "carrying the torch". 
>(Arrggh, not ANOTHER tube/solid state flame war!)
>There are numerous sites on the web where DIY solid state 
>projects can be found, enabling anybody with some time and 
>motivation to build basic but effective synth stuff. But 
>what about tubes? I have not searched exhaustively for tube 
>projects in particular, so maybe I have missed something, 
>but there just does not seem to be a lot out there.
>Here is my challenge; I would like to see somebody come up 
>with some synth DIY tube projects on a website designed for 
>the tube novice. For starters, how about a VCO built 
>entirely from a few common tubes (12AX7 etc.), that 
>produces various waveforms, with V/Oct scaling and FM 
>input. Details regarding design and features could be 
>discussed on the list, for those interested, just as is 
>done for solid state projects. And judging by what tubes 
>sound like to me, I think that this could be an incredibly 
>PHAT sounding oscillator. If successful, a whole series of 
>modules could then be designed, allowing one to build 
>their own all-tube modular synth. Then everyone could see 
>for themselves what the advantages and disadvantages are.
>So, any brave souls up to the challenge? 
>Doug (obviously thinking WAY too much) Tymofichuk
>dougt at

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