Paul Cochrane Timmy V2 Teardown! See what's inside!
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- Опубликовано: 8 сен 2024
- Hello and welcome back to the bench. Today's teardown is the venerable Timmy Overdrive from Paul Cochrane. Enjoy!
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Business contact: graybenchelec@gmail.com
#timmyoverdrive #paulcaudio #paulcochrane #timmyv2 #overdrive #distortion #guitarpedals
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Cool vid! Thanks for breaking this down. I do want to clear a few things up though. I NEVER said I made this before the Screamer came out. I'm getting older, but I'm not that old! I made this back in 1997. It was not based on a TS though. I had a goal of something that could be used as a flat/clean booster to a decent amount of crunch to use with my rig. To get that range I had an idea to give it pre clipping bass, and post clipping treble so it wouldn't have a preset voice and I could dial it in based on my gain needs. I came up with the bass control to act like the shelf effect of jumping channels on my plexi. I wanted that sub bass floor sound. This was years before the Zap. The output stage wasn't a modded ts. I had an extra stage in the opamp and used it so I could get a decent amount of boost - it's a loud pedal. It is a very simple circuit though, and I never gooped or hyped it up. That red pedal was sold through a dealer at $129.00 with my take being about 30% off of that so not a huge markup on my part. I stopped making this version in 2018 and have been making the V3 since.
Thanks for the reply!! 🙌
@fivesevenNp90 here it is
Thank you for making these. My v2 never leaves the board.
Great video! A Vemuran Jan Ray teardown would be much appreciated! Wanna see the minimal differences between these two
Thanks 😁
Or their Ox Boost! I’ve got all John’s pedals but those two intrigue me the most!
THANX😎
Got the v2 back was in he day, where I had to custom order it. Not sure if the guy still builds them but definitely hands down best pedal I had!
great series
I love the pedal and love this channel!
you should have 500k followers
That switch is what used to be the mammoth 3pdt pros. Have used some new gorvas that are sweet soft but have a remaing crackle noise after activating the effect maybe due to soft action, specially on drives so I stopped using them 😢
Interesting, I haven't had any issues with the gorvas, but I'll keep an ear open for that!
Paul still makes the Timmy. It's the V3 Anniversary model
Gotcha, so he just doesn’t make the V2 anymore. Good info!
@@graybenchelec yep! Dig the channel btw
Had the V3, hated it.
He makes timmy still. Only V3 from humbucker music
New to the block> Demonfx ANGEL BLUE DRIVE Timmy v2 clone.
Nice. Why do people use polystyrene capacitors as opposed to the box type?
I used silver mica I bought on a surplus for cheap, and switched to polystyrene when I ran out. Then I found a box cap of that value and have been using it since.
It's actually nothing like a tube screamer.....
Any chance of ever comparing insides of clones - even the super cheap ones - with real things or controversial things? *cough Vemuram*
Paul Conchrane said he didn't use a "rail to rail op amp" so he made the op amps biasing voltage not at 4.5vdc to get the most headroom out of the op amp? I'm not sure why only use 2 diodes in the feedback loop of the op amp would give you "more compression" compared to using 4 diodes in series in the feeback loop of the op amp would give you "less compression" why?
Each diode has a forward voltage drop, below which it does not conduct. More diodes in series means it takes a higher voltage to turn on the string of diodes and make them conduct. That provides unclipped clean tone until reaching the higher voltage. In pedals such as the King of Tone, the diode clipping level is varied by using diodes with different forward voltage drops and switching between them, or completely bypassing them (no diode clipping at all). Without clipping diodes, the main source of clipping is the output level reaching the supply rails on the op amp.
Rail-to-rail op amps are able to output a waveform that approaches both the upper and lower supply voltage to the op amp. The 4559 cannot do this. So the supply voltage is raised a little bit on the top end to provide a more symmetrical output waveform.
@@JohnShalamskas The Op amp 4459 bias voltage for the positive cycle is raised higher than the bias voltage for negative cycle to provide a more symmetrical output waveform?
@@JohnShalamskas That is called Clippage ( not compression ) if only one diode in the feedback loop of the op amp is 0.7vdc will start clipping the CLEAN waveform that is not called compression that is clipping the clean waveform which is chopping off the clean waveform.
Cipping is compression - you are limiting the peaks. @@waynegram8907
Clippage is compression... You're talking about lopping peaks and when you do it...
@@waynegram8907
Is that diode the 1n4001 thing I keep seeing?
The clipping diodes are Fairchild 1N4148. The polarity protection diode is probably 1N4001, or one of the others from that series.
@@graybenchelec oh yeah the polarity protection was what I meant, probably should've specified sorry lol
@@the-np4mr All good!
i'd replace all those cheap box caps with panasonic films
Will there be an audible difference in terms of noise or tone? I'm curious since I see those box caps on some builds while I see the red film ones on others
@@lordseph likely no difference.
Can we get an Electronic Audio Experiments Ox Fuzz tear down?? 🫶🏻