madbeanpedals::forum

Projects => Build Reports => Topic started by: Gilmourisgod on December 29, 2013, 01:13:41 AM

Title: Harbinger One Filter PCB - To Use or Not to Use?
Post by: Gilmourisgod on December 29, 2013, 01:13:41 AM
I am in the final stretch of assembling my Harbinger One. I have managed to fit the little filter PCB in, but it's a real PITA in a 1590BB Tall. I've read conflicting threads about the necessity for it. I'll be running the pedal on a 9V Onespot wall wart along with four or five other 9V effects. Any consensus out there? Some say the main PCB onboard filtering is sufficient, but I have to assume Madbean wouldn't have included it if it wasn't necessary.
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: midwayfair on December 29, 2013, 03:39:40 AM
You're running it on 9V with the charge pump, correct? Via the road range? The Road Rage has filtering pre- and post-charge pump, and that and the on-board filtering should not only be sufficient but perhaps even overkill. Mine makes no noise at all on a one-spot.
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: Gilmourisgod on December 29, 2013, 10:31:04 PM
The charge pump is built into the PCB, isn't it.? I didn't use the road rage, power goes from 9v jack to filter pcb, then into 9v pads on main pcb. Why would I need an offboard power supply?
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: midwayfair on December 30, 2013, 02:34:17 AM
Quote from: Gilmourisgod on December 29, 2013, 10:31:04 PM
The charge pump is built into the PCB, isn't it.?

Derp, you're right. Ignore that part. What I said still applies, though, it has filtering before and after the charge pump. You most likely won't need the extra filtering.
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: Kinki fuzz on December 30, 2013, 09:04:39 AM
I built it for 9v also, didn't use the extra board, works perfectly
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: rullywowr on December 30, 2013, 04:20:14 PM
Ditto...the filtering board is only for an external 18v PSU.  I built mine with the 9v option and didn't use the board...all is good!
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: pryde on December 30, 2013, 05:58:26 PM
Ditto, on-board filter at 220uf works great
Title: Re: Harbinger One Filter PCB - To Use or Not to Use?
Post by: Gilmourisgod on January 01, 2014, 01:35:20 AM
Thanks all, losing the filter pcb leaves more space for my big borky amp jewel light. Sweet!