RMA Dirty Doper



Moderator: crochambeau

Re: RMA Dirty Doper

Postby Jesus Was a Robot » Wed Jun 21, 2017 9:38 am

My pants!!! They are so tight right now! ;)
"My boner"

-Jwar

"You may caress my harem of large velvety hammers any time".

- The Velvet Hammer

"#I'mwithJwar"

-D.O.S.

"Also this thread is now on page 2399, and the pt2399 is the most used delay chip for most dirty delays. Coincidence? therefore 9/11".

-multi_s

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Thanks Obama"

-raj007
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Re: RMA Dirty Doper

Postby JonnyAngle » Sat Jul 08, 2017 10:54 am

Photobucket is being super lame with the 3rd party hosting so we can't see the pix
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Re: RMA Dirty Doper

Postby Chankgeez » Sat Jul 08, 2017 12:08 pm

Phuck Photobucket!!! :mad:
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"You can't copyright circuits really." - Ed Sanner …………….0.............
"The effects market was really nothing more than a bunch of beggars and theives, all building off one another's work." - Dan Armstrong…...........................…
Sweet dealin's: here

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Re: RMA Dirty Doper

Postby crochambeau » Sat Jul 08, 2017 2:50 pm

Yeah, I'll re-host the important images this weekend. So pissed about that, my global forum presence has utilized their service for going on 15 years now. Sadly, that history is NOT worth $400 a year.
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Re: RMA Dirty Doper

Postby Chankgeez » Sat Jul 08, 2017 2:54 pm

Is that how much they want? :lol:

I haven't really looked into it. Maybe I should just delete my Photobucket account. Definitely not worth it for me. :|:
Alice: balls have a ball to me to me to me to me to me to me to me to me
"You can't copyright circuits really." - Ed Sanner …………….0.............
"The effects market was really nothing more than a bunch of beggars and theives, all building off one another's work." - Dan Armstrong…...........................…
Sweet dealin's: here

"Vibraphones are like blowjobs; everyone wants one, but the good ones are cost-prohibitive."- Ugly Nora
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Re: RMA Dirty Doper

Postby crochambeau » Sat Jul 08, 2017 3:09 pm

Chankgeez wrote:Is that how much they want? :lol:

I haven't really looked into it. Maybe I should just delete my Photobucket account. Definitely not worth it for me. :|:


Yeah 3rd party hosting is only available to the HIGHEST TIER which is $39.99 per month, payable annually as a flat $400.

It's like they've decided to just crash their plane right into the mountain.

ANYWAY, since I'm not needlessly bumping this thread I want to talk about some of the changes I've implemented. Original Dirty Dopers had outboard wiring around the entire perimeter of the board.

Image

Image

This resulted in an inordinate amount of time burned on assembly, wading through a jungle like this:

Image

I was okay with that for a while, but at this point I'm spending more time designing than assembling and would really like to be able to run my days at about a 50/50 balance of manufacturing and development. This demands I abandon a lot of off board wiring for assembly efficiency:

Image

Contains PCB mount switches and pots. I know I've railed against this tactic in the past, but it's my ass in the sling and something had to give. Standard transferable warranty still abides.

The circuit is reconfigured a bit in the following ways:

Front end remains unchanged.
Upper fuzz line A has gone from a two stage to a three stage. It will feed a three position switch that assigns tone positions (from toppy to full bandwidth to heavy) - this channel will now feed a "dry" mix instead of channel A-B balance.
Lower fuzz line B has all of the above, and has lost the switch in "low pass" that did not work that well. Actual stages on this line are still PNP (as opposed to the NPN on line A) but are asymmetrically clipped per stage instead of having a back to back pair of like diodes as before.
I've ousted the polarity inversion on the lower line (this might go back in).
Instability section has a few tweaks, remains to be seen.
Power rails are separated between the sections, and CV control can be assigned to one of three, or two of three sections depending on switch position.

I think there's something else, but I'm about out the door... I hope to have some demonstrable prototypes built in about a month or so.

Oh yeah, two feedback paths for different (combinable) self oscillation modes.
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Re: RMA Dirty Doper

Postby Jesus Was a Robot » Sat Jul 08, 2017 4:05 pm

All I can say is

MY BONER!!!!
"My boner"

-Jwar

"You may caress my harem of large velvety hammers any time".

- The Velvet Hammer

"#I'mwithJwar"

-D.O.S.

"Also this thread is now on page 2399, and the pt2399 is the most used delay chip for most dirty delays. Coincidence? therefore 9/11".

-multi_s

"The only thing I can muster after reading this thread:

Thanks Obama"

-raj007
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Re: RMA Dirty Doper

Postby Chankgeez » Sat Jul 08, 2017 4:15 pm

crochambeau wrote:Image



Yeah, jwar's boner is like a skyscraper of populated circuit boards. :lol: :love:

Making work easier is always good. :thumb:
Alice: balls have a ball to me to me to me to me to me to me to me to me
"You can't copyright circuits really." - Ed Sanner …………….0.............
"The effects market was really nothing more than a bunch of beggars and theives, all building off one another's work." - Dan Armstrong…...........................…
Sweet dealin's: here

"Vibraphones are like blowjobs; everyone wants one, but the good ones are cost-prohibitive."- Ugly Nora
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Re: RMA Dirty Doper

Postby goroth » Sat Jul 08, 2017 4:23 pm

Sounds awesome!
Olin wrote: you generally have to choose between trying to wade through honey or staring at the sun, but those are both pretty cool things to do.

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Re: RMA Dirty Doper

Postby amnesiac305 » Tue Aug 22, 2017 8:08 am

:hello:
Excellent Transactions: monkeydancer, dorfmeister, Rygot, bronzetalon, PumpkinPieces, Wes Mantooth, Deltaphoenix, Blooghost, Fuzz_Pi, Neanderthal Head, lordgalvar
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Re: RMA Dirty Doper

Postby crochambeau » Tue Aug 22, 2017 1:02 pm

amnesiac305 wrote::hello:


I guess I owe everyone an update. :lol:

I drafted PCB mount pots based on some right angle dual gang 9mm parts I found reference & datasheet for, the minor detail I missed was availability and minimum order. So, this has put a pause on things while I juggle other builds and contemplate resolutions that do not involve a complete re-draw of the PCB traces after parts are wiggled around fatter pots.

I think I'm settled enough on a solution that I can dig into stuffing and fine tuning the new circuit to prove operation.

Thanks for the nudge!

:group:
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Re: RMA Dirty Doper

Postby goroth » Tue Aug 22, 2017 3:42 pm

jwar wrote:All I can say is

MY BONER!!!!
Olin wrote: you generally have to choose between trying to wade through honey or staring at the sun, but those are both pretty cool things to do.

My band /// Instagram ///Facebook ///
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Re: RMA Dirty Doper

Postby D.o.S. » Wed Aug 23, 2017 6:50 am

So stoked. Can't wait to do some AB testing.
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