Power

[Fp-www.Tonepad.com]

This is a project I started long ago but didn't have time to finish until recently.

Nothing special about the circuit, which is pretty much the application note from the datasheet, but the layout includes pcb mounted DC jacks like those found on BOSS pedals, so wiring isn't as bad as with panel mounted jacks.

http://www.tonepad.com/project.asp?id=59

Fp

[Fp-www.Tonepad.com]

shameless b-u-m-p

[markm]

Thank You Sir...
I can't beleive I missed this!
It's good to see some new stuff from Fp at TP!

[blanik]

can you invert the polarity on a single one of those DC jacks (to accomodate a reverse polarity pedal) without shorting the whole thing?

R.

[Fp-www.Tonepad.com]

no. you'd short the positive to ground, exactly the same as with any other parallel output power supply.

[aron]

Yes, this type of circuit works great. It's great because your overdrive sounds exactly the same from gig to gig because the power supply is accurate.

Thanks!

[Fp-www.Tonepad.com]

 

[davph30]

If you want to change the polarity to a pedel just make one of the leads a cross-over changing the pip on one end

[Pushtone]

Instead of a transformer mounted in the enclosure can I use an external one like this 120V to 12VAC adapter?
http://www.rpelectronics.com/Default.asp?Main=/English/OnlineCat.asp?Menu=/English/Content/Categories/CatM_68.asp%26Detail=/English/Content/Items/RP-1283.asp

Wouldn't this help reduce hum by getting the transformer off the pedalboard?

[Fp-www.Tonepad.com]

Definitely, you may use a 12vac wall wart.

[aron]

Batteries can be cool, but it is not cool when your overdrive reacts and sounds different on each gig. When I went to a stable power supply, everything was repeatable for me. This is a good useful build for anyone.

[jimbob]

Can most of these parts be found at radio shack (not that im a fan of the ratshack) but it is convienient. And the 1n4002- I have some 1n4001, - Much difference?

[rockgardenlove]

Those should be fine I think.


It would be pretty cool to include a voltometer thing so you could tell how much it was outputting!

[Barcode80]

davph30: nope, any lead crossing on a parallel design will short a positive to ground and no pedals will power up.

[PenPen]

Nice. This is pretty close to what I was planning to build. I have most of the parts for this. I'll report back if I DO get the time to build one (though with the ice storm I've had my hands plenty full lately), along with a mod or two that i had planned on putting into the power supply I had in mind.

Thanks yet again, Tonepad!