Crowther Audio - Prunes & Custard

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
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theblackman
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Post by theblackman »

Hi,

I've got some (de gooped) gutshots, I messed it up pretty bad when I was scraping off the goop but you should be able to make out most of the circuit from these shots...

I'm going to desolder and measure some components and get back to you. (i need to replace the diodes that i broke also).

http://rapidshare.com/files/45266202/pr ... rdguts.zip

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briggs
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Post by briggs »

Great stuff. I love the Hotcake, this looks like something just as cool.

How's the desolder going?
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goaltoday
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Post by goaltoday »

Thanks. Lots of diodes out there. :D

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theblackman
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Post by theblackman »

briggs wrote: How's the desolder going?
haven't got around to it yet, i've got a couple of other things on the go. i'll do another post when more info arises.

i'm looking forward to seeing how this works, i think it is somewhat similar to an octave fuzz without the octave .... some kind of wave rectification going on..

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marshmellow
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Post by marshmellow »

Hi theblackman,

(and hi to all the other freestompboxers, I think I'm gonna like it here... :P )

maybe you could take a look at this: https://img171.imageshack.us/img171/3407/boardux1.jpg

and confirm what I've drawn out compared to the original board. The marked areas were kinda hard to recognize. But this is the way it makes the most the sense to me. Doing the schematic is a piece of (hot :wink:) cake from there on.
The smaller PCB containing the DPDT is only some weird buffer/bypass switching would be my guess? So I would leave that away.

theblackman, if you're already on this I don't want to interfere you. But I always wanted to see what's going on with this pedal and couldn't believe my eyes when it appeared here. So...


Cheers,

Volker

(admin edit: restored the links - I do this even though you don't have 5 posts yet, didn't even know that)

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Post by analogguru »

I'm going to desolder and measure some components and get back to you. (i need to replace the diodes that i broke also).
I´ve traced the schematic and it is waiting for some resistor values .... :wink:

analogguru
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soulsonic
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Post by soulsonic »

here's the above link so it can be clicked on easy:
https://img171.imageshack.us/img171/3407/boardux1.jpg

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theblackman
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Post by theblackman »

ah I'm sorry, I'm so lazy! AG are you still waiting on values for the Octane 3 too??

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marshmellow
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Post by marshmellow »

analogguru wrote:
I'm going to desolder and measure some components and get back to you. (i need to replace the diodes that i broke also).
I´ve traced the schematic and it is waiting for some resistor values .... :wink:

analogguru
Ah, that's some good news. Although this leaves me without work now... :?

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MoreCowbell
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Post by MoreCowbell »

analogguru wrote:
I'm going to desolder and measure some components and get back to you. (i need to replace the diodes that i broke also).
I´ve traced the schematic and it is waiting for some resistor values .... :wink:

analogguru
BTW, I'm still looking for the wiring pics on the Peach.

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krome_magnon
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Post by krome_magnon »

Are there any sound clips of this pedal online anywhere?

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marshmellow
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Post by marshmellow »

I think this might be the only stompbox so far that has been a song dedicated to... There is a song called "Harmonic Generator" by the band The Datsuns, a quality rock'n'roll band from New Zealand by the way (but their third album was kinda weak unfortunately, the first is really sweet from start to end). Harmonic Generator is also printed on the enclosure it's in. I believe it's played in the second solo (maybe also the rhythm guitar?). Not so sure, I haven't heard it in real life yet. That's how I came across this pedal first. Anyway, it's some kind of special fuzz.

http://filters.muziq.be/model/crowther/prunescustard
http://www.talkbass.com/forum/archive/i ... 22540.html

http://www.sing365.com/music/lyric.nsf/ ... CA0007A000

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krome_magnon
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Post by krome_magnon »

These 2 were good info. The P&C sounds great on bass.

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theblackman
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Post by theblackman »

hopefully this should help, let me know if you need any more info..

Image

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kaz
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Post by kaz »

Hello,theblackman.
Thanks more info!!

2k shows the resistor value of 56k.
Please check it again.

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theblackman
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Post by theblackman »

which one are you referring to on the photo?? the one I have written as 56K or the one that is written as 2K?

the 56K one was desoldered and measured with a multimeter FYI.

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kaz
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Post by kaz »

Hello,theblackman.
Thank you for a reply! :D

It is resistance value of 56k which you wrote.
You take the solder and measured with a multimeter, I am even if it is a positive value.
I make it with this value once.
Thanks!!

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theblackman
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Post by theblackman »

thanks kaz.

if you make a schematic be sure to post it for the rest of the forum. thanks .

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kaz
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Post by kaz »

Hello,theblackman.

Very very Thanks!! :P
I want you to teach a value of the resistance of the relay circuit if all right.
The main schematic was done.

I want to upload a schematic, but the number of the contributions is insufficient, and it seems to be no use. :cry:

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theblackman
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Post by theblackman »

sorry, I can't really understand what you are trying to say, there maybe something getting lost in translation here?

what do you need to know?

Note: My electronics skills are not very good, I don't know what the relay circuit is. Are you talking about the daughter board that does all the switching? If so it seems to be exactly the same as the hotcake, but I can provide some more details if you like.

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