more sound samples and a couple of schematics

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11/3/1999 9:42 AM
Aron	more sound samples and a couple of schematics Just added more sound samples at:     http://members.xoom.com/aronnelson/     as well as a few more schematics.     http://www.tedm.com/stompbox/pedals/       Check it out!

 

11/3/1999 2:58 PM
Joe Fuzz	quote: "  http://www.tedm.com/stompbox/pedals/"

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Nice! Kudos to Ted for giving you space on his fast server!  
 
What's the "topica" thing all about?  
 

11/3/1999 6:44 PM

Ed Rembold

Aron,   Is that you playing? I thought you were a keyboard player.   seriously, Very Nice.   Couple of questions-   Why the 100ohm, on the Op amp output, before the FB loop?   Why the 1.1k,to ground, parallel w/the diodes?(seems like that would ground the output)   Is that 1.1uf or a typo(value) ,between the Gate and Source of the upper fet?   No HP Resistor in the tone section? Thats different.   Lastly, I've never had any luck w/CMOS, but I'll try again,   you know what Aron- I think you should show the pin-outs (you use) of the 4049 on your schem.   Ed rembold

 

11/3/1999 7:02 PM

Aron

> Is that you playing? I thought you were a keyboard player.   seriously     I _am_ unfortunately a keyboard player yes. But in my defense, I did play guitar through middle school->college. I quit for about 15 years (ouch) and then picked it up again. I've been playing for 2 years now. Sorry about the playing     > Why the 100ohm, on the Op amp output, before the FB loop?   Why the 1.1k,to ground, parallel w/the diodes?(seems like that would ground the output)     Sneaky snippets from Jack Orman - to run the IC in class A mode.     > Is that 1.1uf or a typo(value) ,between the Gate and Source of the upper fet?     It's 1.1uF - I put a 1uF with .01uF in parallel.     > No HP Resistor in the tone section?     Mistake! Jack pointed it out. Thanks - it's been fixed.     >Lastly, I've never had any luck w/CMOS, but I'll try again,   you know what Aron- I think you should show the pin-outs (you use) of the 4049 on your schem.     OK, I did in terms of CMOS inverters. In the notes and on the schematic, note that it says INC and IND meaning that I used inverter C and inverter D for the CMOS inverter section.     I didn't have much luck with CMOS - other than Frank Clarke's experiments but look what happened? I was trying to get a big sustain/distortion pedal going and this pedal didn't sound very good until I moved the diodes from the feedback loop to the diodes-to-ground, added a 2nd CMOS inverter, then the sound really changed and the CMOS section started sounding good.     I had a dream that through CMOS I would be able to replicate the following pedals:     Big Muff CMOS-style - multiple inverters with high pass roll off filters.   Fet Muff - judicious use of inverters and FETs.     I couldn't get around the bass loss and degraded frequency response of the CMOS inverters - but it worked in this case.     Thanks,     Aron

 

11/3/1999 9:20 PM
Joe Fuzz	Re: Insanity Holy smokes! A Rat into a Tube Sound Fuzz into a Minibooster. That's some gain, all right!     The sound sample sounds good. What diode combinations did you use on yours? The one you recorded with, I mean.

 

11/4/1999 4:30 AM

Aron

As described in the schematic - 1N914s 3 of them as drawn.     The diodes start kicking in after the drive control is turned up a little - you can hear them kick in as you bring up the drive knob.     The pedal is very warm as the CMOS section "degrades" the sound and the FET Minibooster contributes some serious nice smooth overdrive.     I prefer to think of it as a Distortion+ into a Tube Sound into MiniBooster hehehehe     Ahhh a RAT is fine too!     This is one fun pedal I tell you!

 

11/3/1999 11:41 PM
Ed Rembold	An apology Aron,   My hats off to you for answering my "tech" questions,   inspite of you thinking I was making fun of your guitar   playing. My apologies, I was not making fun, that's why I   put "but seriously" - It was you who stated that you were   "10X the keyboard player" ,I was just playing off that.   I am quite impressed with the samples, and again I'm very   sorry. Ed Rembold

 

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