madbeanpedals::forum

Projects => General Questions => Topic started by: dwstanford on November 08, 2011, 10:09:04 PM

Title: D-Bag
Post by: dwstanford on November 08, 2011, 10:09:04 PM
I just got all my parts in for the dirtbag delay and i just noticed that on the prototypes there were some larger 1 or 1/2 watt resistors and a big 470uf electrolytic.   Those werent listed on the bill of materials so i'm assuming the new layout doesn't call for them? 
Title: Re: D-Bag
Post by: stecykmi on November 09, 2011, 01:46:16 PM
the 470uF was probably replaced with a 100uf or something, it's gotta be for power supply filtering.

and 1/4W or even 1/8W resistors will be fine.
Title: Re: D-Bag
Post by: dwstanford on November 09, 2011, 02:13:51 PM
SWEET.  Cant wait to get the pcb.  I'm ready to build that slut!
Title: Re: D-Bag
Post by: plesur on November 10, 2011, 04:37:22 AM
The original Deluxe Memory Man ran off 24V AC, so it needed larger value caps and higher wattage resistors in the circuit that produced the +15V and -15V to run different parts of the circuit.

The Dirtbag's power setup is a little different so doesn't needs parts of that tolerance.
Title: Re: D-Bag
Post by: madbean on November 10, 2011, 04:46:05 AM
Yep, the power section was altered to allow +15 for MN3005 and 9v operation for v3205. So, no power adaptor or positive ground in the Dirtbag.