I need a Rangemaster, and found this board in my pile o crap.
I have some OC44s and a bucketful of other parts, but can't remember where I got this and have no idea what goes where. Don't think it's a PigeonFX.
Anyone recognise it? Know where I can get a legend? Or should I just give up and try it on perfboard or a tagstrip?
Rangemaster board?
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- devnulljp
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- Location: Gulf Islands, BC, Canada
Rangemaster board?
Dear Bongo, No.
Good deals with all these guys
Good deals with all these guys
- Dr Tony Balls
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- Location: Brooklyn
Re: Rangemaster board?
No clue where it came from but i'm bored so here's what I would do, working backward. Not sure what the two pads are on the bottom....could be for a current limiting resistor for an LED, but not important to the circuit.
- devnulljp
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- Joined: Sat Sep 13, 2008 10:02 am
- Location: Gulf Islands, BC, Canada
Re: Rangemaster board?
Thanks, that's brilliant. Where does the switch go? I got it to kick on by grounding one of the resistors against the case and it doesn't sound half bad.Dr Tony Balls wrote: ↑Tue Oct 06, 2020 6:57 pm No clue where it came from but i'm bored so here's what I would do, working backward. Not sure what the two pads are on the bottom....could be for a current limiting resistor for an LED, but not important to the circuit.
RMboard.jpg
Dear Bongo, No.
Good deals with all these guys
Good deals with all these guys
- Dr Tony Balls
- Posts: 2335
- Joined: Wed Aug 17, 2011 3:42 pm
- Location: Brooklyn
Re: Rangemaster board?
Like so:
You can ignore the right-most column of terminals if you're using a DPDT and dont want an LED
You can ignore the right-most column of terminals if you're using a DPDT and dont want an LED
- Electric Warrior
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Re: Rangemaster board?
This is the better way of bypassing with a DPDT:
It grounds the circuit board input when bypassed, preventing many issues with popping sounds when turning the pedal on.
It grounds the circuit board input when bypassed, preventing many issues with popping sounds when turning the pedal on.
Everything is transitional.
- Dr Tony Balls
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- Joined: Wed Aug 17, 2011 3:42 pm
- Location: Brooklyn
Re: Rangemaster board?
That last part is incorrect, though the wiring method is not a bad one. Some circuits are unstable when the input connection is left open and will create noise issues even when bypassed. This usually manifests itself as a hiss or oscillation and is particularly common in high gain circuits (which I would not consider the Rangemaster to be). Stuff like fuzzes and distortions. That said its not a BAD thing to do, just maybe not fully needed...though its like not like it takes any longer.Electric Warrior wrote: ↑Wed Oct 07, 2020 5:48 pm This is the better way of bypassing with a DPDT:
It grounds the circuit board input when bypassed, preventing many issues with popping sounds when turning the pedal on.
Switch POP in latching switches is entirely different and due to DC collecting on the switch terminals when the pedal is not in use. That is commonly solved with large pulldown resistors on the input and output of the circuit itself, such as what is seen here (1M resistors) on this modernized Rangemaster schematic:
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