Re: Classic Tube Revealed!! (initial report)

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2/29/2000 9:26 PM

Matthew Springer

Re: Classic Tube Revealed!! (initial report) Jim,   Do you have a schematic specifically of the FX53 or FX52? Either one would be a help. Stuart was kind enough to mail me his, but I'm curious if you have another one or a more complete one.   I've got two of these screwy pedals now and actually there are three gain regimens as far as I can tell.   1) at low gain (less then 40%) I think only the diodes in the feedback loop clip. Produces a bass heavy TS type sound. Works great after my Soul Bender   2) at 40% - 90% the diodes from output to ground start to clip. Produces a heavier clipping sound like a fuzz.   3) at 90% and higher I have no idea yet what's producing the distorion, but it's insane. I suspect its the diode in the collector load or maybe some sort of CMOS type distortion. I don't really know, but it's crazy.

 

3/1/2000 11:54 AM
Jim Radmer	Re: Classic Tube I have the hand made layout from Stuart. I have never tried to trace a circuit.     I have the FX53 on auction at the moment. The bidding is low, so I suspect I'll keep it and mod it to sound brighter.     Keep the good ideas coming!     Jim

 

3/16/2000 5:35 PM
Rebel420	Re: Classic Tube Revealed!! (initial report) quote: "It has a very funny gain setup, where the last 10% og the gain pot increases the gain to a totally wild scream with a large volume boost."   Could that be due to the taper of the pot?

 

3/16/2000 9:44 PM
Matthew Springer	Maybe, but I think it has more to do with a clipping mode that only kicks in on the final 10% of the gain knob.   Sorry I haven't had more time to check out more about this pedal, but I am in the middle of a move right now (not fun in the SF Bay area) and my start-up is currently acting like a dot com.     All will be revealed in due time.

 

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