Son of Clay Play

[Kipper4]

Can i safely make mods to the Diodes without compromising this effect?
Eg Germaniums (1n60p) , Bat 46's , 1n4148's

I'd like to put a 1m5 resistor to ground on the input. Good idea?

Also a reverse polarity protection diode to ground eg 1n400x   (ive got 4002's and 4007's in stock)

What will happen if i change the values of the pots. if i can change them what will make it sound better? No worse, and what will ruin it?

Can i use a polarised cap 1uf on the output?
If so which way should i face the Positive?


Thanks for the help
Rich
I'm getting adventurous now.
I've made a plan to build the board in the shortest possible time on the smallest area of board i can.
I will build it as a prototype board with plenty of sockets for experimentation (EG clipping Diodes, Input cap)

Heres the schematic i want to play with .
http://revolutiondeux.blogspot.co.uk/2008/03/son-of-clay-jones-overdrive.html

[Pyr0]

I would try and build it as per spec, it's a really nice sounding overdrive as designed. Wait, get the right parts, you might just like it.

Changing the opamp and the LED clipping diodes will change the sound completely, changing anything else will be hit and miss.

Off course, feel free to modify and tweak it, that's how we learn, but it won't be a Son of Clay Jones, it will be just another unbuffered tubescreamer variant.

[Kipper4]

I know it sounds awesome, i've already built it twice before stock.
I really like it.
I'm doing this as an experimental board. Not because i'm short of stock.
After struggling to fit the Engineers thumb in to a 1590B box i want to see how efficient a layout i can get in terms of real estate.
it's turned out a little over half the size i made it before but includes millenium bypass this time. Not bad, could do better. (as my teachers used to say.)
i still have room for an optional (switchable) assymetric clipping diode arrangement.

It still took me 3 hrs to build. I really out to trial some vero. (as before so again)
i've yet to debugg and take voltages. I hope i have everything in there.
The board's reasonably tidy (tick)

If you have any suggestions for tweeks feel free to chime in.

[bluebunny]

Go for it, Rich.  I think the LEDs and the hi-fi op-amp contribute to the "Clay Jones" sound (along with other less obvious tweaks).  As Alan says, it won't be a Clay any longer, but go mad.  BTW, 20x9 on vero.      (I like to use those little 25x9 boards.)

[Kipper4]

First time i struck it up. It worked
Now thats gold.
My most effiecient layout to date.
I tried 5mm red leds sounds good.
5mm clear leds a bit brighter and more brittle.
A gree and yellow 5mm led even more brake up and even more nargly.
So with a few tweeks it can be customised to suit differant rigs and flavours.
For my show off piece i might get a 1590bb box and put all three differant led configurations and some differant caps in the clipping amp for demo purposes.
I'm chuffed to nuts it works and its fun to tweek it too.
Pic of the circuit to follow.

[bluebunny]

Hey, well done Rich!  Sounds like a great job.  Yeah, post up pics.  Can't wait to see it in a box.

[Kipper4]

Heres a pic Mark


https://www.dropbox.com/sh/7ma9n53c5jqdgsr/d-0TvwYXDL#f:Son%20of%20Clay%20experiment%20board.jpg



Enjoy. What i like is they're getting less ghetto all the time.
Less ghetto = more reliable too i guess.
I'm learning to keep the wires as short as possible. I have a ways to go but i'll get there.

[Kipper4]

1n60 diodes and 1n4148s were a waste of time they didnt let enough signal through the clipping amp.
I'm learning all the time

[danielzink]

After struggling to fit the Engineers thumb in to a 1590B box i want to see how efficient a layout i can get in terms of real estate.

I can safely say....that with a little bit of forethought......you can get a SCJOD/YATS down to a very manageable piece of real estate 

[Kipper4]

Neat. I can't do smd yet. Lol

[danielzink]

Neat. I can't do smd yet. Lol

Maybe you were joking and I didn't get it...

But that is no smd......those are all "through hole" full size parts.

Dan

[Kipper4]

Yer i was joking Dan.
It looks so neat and well planned and dinky. Wow good job man. I'm in awe.
How many pots has it? (there doesnt look to be enough holes to accomodate 3 pots and battery wires, in/outs?)

[danielzink]

Yer i was joking Dan.
It looks so neat and well planned and dinky. Wow good job man. I'm in awe.
How many pots has it? (there doesnt look to be enough holes to accomodate 3 pots and battery wires, in/outs?)

There are a couple more holes on the opposite side of the board (down by the blue cap in the right corner - and over by the clipping LED's).

But also - Volume 2 is typically OUT - so you don't need the PCB for that. Lugs 2&3 on on the gain pot can be bridged as well - so there's a hole that doesn't need to be on the pcb.

Just takes planning and creativity.....oh....and time to sit there and keep moving things around   

Dan

[pappasmurfsharem]

@danielzink.


You gonna share that sweet layout?

[petemoore]

  yeya !