Fulltone - OCD  [traced]

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Re: Fulltone - OCD

Postby POTL » 01 Sep 2017, 02:06

bugg wrote:Sorry man, haven't forgotten about you! Had to deal with some car repairs this week so been busy.

The trace is done, PCB is drawn, I just need to clean up the schematic and export to an image then I'll post it.


OK
Thank you bro
In fact, I do not need a fee. I'm interested in the circuits themselves.
1) I like to breed boards myself
2) The scheme is interesting from the sports interest, I do not plan to collect a clone for myself or for sale, I'm just curious
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Re: Fulltone - OCD

Postby bugg » 02 Sep 2017, 23:07

Schematic.png


Here ya go, I'll upload a pinout for the 3PDT shortly. I have PCBs ready to go for this if anyone wants em.

I'm aware that Q5 appears to be upside down, I reconfirmed this multiple times, it is correct. Since these are 2N5457 the Drain/Source is interchangeable.
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Re: Fulltone - OCD

Postby POTL » 03 Sep 2017, 00:47

bugg wrote:
Schematic.png


Here ya go, I'll upload a pinout for the 3PDT shortly. I have PCBs ready to go for this if anyone wants em.

I'm aware that Q5 appears to be upside down, I reconfirmed this multiple times, it is correct. Since these are 2N5457 the Drain/Source is interchangeable.


thank you very much
in the description it was said that there will be buffers, and he added boosters lol
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Re: Fulltone - OCD

Postby boukman » 05 Sep 2017, 13:53

Hi guys!
So is that buffer worth the effort?I already have an OCD clone.All that talk about Class A buffers at the product description..I mean is it really much better than a simple fet buffer in the dynamics department?
Can someone post the schematic of only the buffers section,or a tagboard?
Thanks!!!
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Re: Fulltone - OCD

Postby Blend » 05 Sep 2017, 14:28

This new version is a maquillage operation. When the sales are jammed, the product was to be redone, the stated goal was to retire the fulldrive with the improved ocd and strange case pops up buffers like fulldrive, morning glory, ts etc etc and takes a bit here and there, like the snake that continues to bite its tail. An input Fetzer Valve, the disappearing germanium diode, and the 1k resistance on the tone as on the od Glove electro harmonix clone or other mods experienced on this forum. I bought a Ocd to resell it after cloning it and although it was not the best pedal in the world it sounded good, I will apply these novelties to the circuit and see if it's worth it.

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Re: Fulltone - OCD

Postby Groovenut » 05 Sep 2017, 15:41

POTL wrote:
bugg wrote:
Schematic.png


Here ya go, I'll upload a pinout for the 3PDT shortly. I have PCBs ready to go for this if anyone wants em.

I'm aware that Q5 appears to be upside down, I reconfirmed this multiple times, it is correct. Since these are 2N5457 the Drain/Source is interchangeable.


thank you very much
in the description it was said that there will be buffers, and he added boosters lol

Yeah, those aren't necessarily buffers and I would hardly call them boosters either. Maybe an inverting amplifier that provides unity ( 0.37dB of gain). I suppose you could call them impedance converters. I agree with the smoke and mirrors assessment so marketing can say it's something new. I doubt most could hear (or measure) a difference from the original at normal guitar levels. Of course if you hit the input with anything over the pinch off voltage of Q5 (Q6), you'll get asymmetric clipping from both Q5 and Q6.

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Re: Fulltone - OCD

Postby bajaman » 17 Sep 2017, 06:20

I had some boards made and built one to satisfy my curiosity and it sounds good - I think the enhanced bypass buffers are a nice touch - I will most likely leave the small switch in the enhanced position :wink:
PM me if you want to purchase a spare board :wink:
cheers
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Re: Fulltone - OCD

Postby Blend » 19 Sep 2017, 10:47

I agree, it now also works in front of the gain pedals or a high gain channel and the output buffer keeps a neutral sound in combination with the chain pedals. It has a low gain sound like a tube blow with the increase in average frequencies compared to previous OCD versions while distortion loses the previous bite. I would not remove the smooth germanium diode.
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Re: Fulltone - OCD

Postby 287m » 19 Sep 2017, 14:39

so its just a OCD plus buffer? hahaha
i just covered some year ago when OCD going to Carbon Delay, make vomit.
just add buffer i found in cazilt oldcraft blog, smile again. hahaha
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