Dober Dan

Sorry for taking my time in getting back to this got involved in other things - wife, kids, house, garden, work, you know how it is...

I have updated the schematics taking to account the comments of Roly and Phil.
So Electrolytic caps have been replaced with film, 100r resistors to outputs of DCC and Presence circuits.

I breadboarded the Presence and Phabbtone circuits. the Presence is a little noisy, used a TL071 anyone have a suggestion to other chips I could use... (Ne5534 or LM351?)

No issues with the Phabbtone circuit.

@Phil

Read a lot of your posts on Tone shaping and EQ'ing, that's what got me interested in the Phabbtone in the first place.
Yes I have read a lot of posts by KMG here and over on FSB -  I stand in awe, his web site is worth a visit some nice projects for the more advanced.

The other thing I have learnt from you is Breadboard, Breadboard Breadboard Breadboard  :tu:

Heavy metal is not really my thing.  I am after a specific sound. Billy Gibbons used a Scholtz Sustainer for the distortion sounds on the Eliminator and Afterburner albums -  listen to "Rough boy" and you will hear the sound I am trying to get.  The Nobels SST-1 that you based your DCC circuit on is a close copy/clone of the Scholtz rockman, which shared much the same distortion and fiter as the the Sustainer.  Thats why I am interested in the DCC. IF anyone has any of the Scholtz schematics and would be willing to share, I would be greatful I have the sustainer, but the others seem to have dissipated from the web.

I have drawn up some proposed layouts for the circuits -  hopefully someone will have time to give them a quick look over.  I have checked and rechecked but you know how it is.

Regards

Kevin

Now that is a nice sounding box of tricks you have made.  :tu: :tu: :tu:
I am tempted to scrap my ideas and just build a PhAbbZone pedal.....
something to aim for...

Kevin

Hi Roly

Quote from: Roly on April 12, 2013, 11:44:34 AM
Welcome in from the cold of your lurkatude!

Lurkatude! I like that one.... 

Thank you taking the time to look over the schematics.

C14 and C20 - I think they are required for bandpass shaping.  C20 is in Phil's Original PhAbb DCC  - mods for Nobels SST1, so I think that is part of his mods to the Nobels circuit.  The SST1 was powered by a +6V 0 -6V bipolar supply.

C15, C28 Would a bipolar cap be OK? I have 2u2 and 10uF....

C32 can be 1uF film no problem.

re the link I will post Bajaman's schematic and my proposed mods in a separate post.
What I am actually asking about is converting a single supply circuit to a bipolar one so it may be better to have that subject covered in a separate post.

Thanks again
Kevin

Hello...

First post from a long time lurker. 
After reading a lot of posts and listening to a few sound samples I got interested in Phil Abbots Phabb Tone, DCC and Presence circuits.
I PM'd Phil and he kindly replied to my questions and also gave some pointers and interesting opinions (especially about the use of Compressors and Noise Gates.....)  (And Phil just when I get my schematic ready, I see you have a new version of the DDC - is there any difference in tone between  the old circuit and the new one??)

I finally found time to redraw Phil's posted schematics, the only difference is I want to use a bipolar supply (Just because I have a 15-0-15V transformer sitting on a shelf and would like to use it!!). 
I am posting my redrawn schematics here, hopefully so more informed person would be kind enough to look them over to see if I have carried out the conversion to a bipolar supply correctly, before I start destroying some IC's. 

If the schematics are complete I will draw up some layouts for them.

PS. if anyone is familiar with Bajamans optical limiter (available from freestompboxes  http://www.freestompboxes.org/viewtopic.php?f=13&t=2369&p=217265&hilit=limiter#p211584) could this also be converted to a bipolar supply?  The link is to a post I made, showing my proposed modification.

Regards to everyone

Edit

Made the attachments smaller