BOSS CE1 PROJECT: MN3002 or TDA1022P: DOC UPLOADED

[johnk]

that would be great.

so far i've just measured voltages. i plan to put it on a scope & a signal generator tomorrow.

[kaeisy]

I fear I fried my dc-dc-converter  . drog_trog, where did you source these?
Sorry, no voltage measuring at the moment...

[johnk]

Bummer! i hope you can get it sorted.

[chorusjunkie]

Bummer! i hope you can get it sorted.

Did you find out what went wrong johnk?

[johnk]

nope. still no chorus effect.

[chorusjunkie]

nope. still no chorus effect.

Maybe a defective BBD?

[johnk]

maybe, but i bought it from Smallbear and they're always reliable.

[drog_trog]

hi John, sorry been real busy, if your willing to pay postage both ways I can take a look at it if you send it me.

[johnk]

thanks for the offer. i'll probably do that since it's just sitting here collecting dust.

[drog_trog]

Update: I have ordered 10 more PCB's for the TDA1022 chip, if you want one please PM me.

$15 plus $4.50 worldwide postage

Free UK post

[skumberg]

Looking at the first post in the link, is this the correct way to do the depth mod?
https://www.diystompboxes.com/smfforum/index.php?topic=117279.0

Wouldn't this change the voltage since the depth pot 8k2 resistor forms a voltage divider from 14V+? To keep the ratio I guess 8k2 should be halfed as well but I'm not sure how this affects the rest of the Circuit.

If I wanted an effect level pot, should I just wire it in series with the 22k(R57 in your schematic)? To control the wet level.

/Nicklas

[drog_trog]

Yes, i have done a bit of experimenting and managed to try this mod exactly as shown in that post and it's really cool. So when the mod is done and you just want to use the intensity knob as original just leave the new depth pot turned fully CW.
As to the other part of your question, do you mean a blend pot to mix wet/dry?

[skyled]

Just wanted to say that I got my pcb today. Looks very good and I can't wait to get started on it. I will also be doing the depth mod for sure.

[skumberg]

Thanks, I'll use that depth pot mod then. Yes I was thinking of a wet blend. I'm not sure how useful it would be though. I did it on my ce2 but actually usually set it in the same position.

[drog_trog]

ye, i seem to recall it being used in the CS9 that another member did (Agua Net Chorus) i think it was a C250k pot. Maybe its worth some experimenting, if you wanted to riff using an effect and just wanted a hint of chorus on top that would be good.