Guyatone WR-2 have schematic

jjjimi84

Well-known member
I think this would be cool, I have the micro delay also and think that could be fun. It has a switch to go slapback to longer delay times, sounds good for a pt2399.

here is the wah rocker
 

PedalPCB

Admin (Robert)
Staff member
That actually looks like the schematic for the WR-3, but maybe it's the same aside from the Blend switch?
 

jjjimi84

Well-known member
I did some digging and found this hand drawn schematic that is a WR3 which is a WH2 but with a clean blend switch and for true bypass. Apparently the guyatone soft switch is some sort of flip flop circuit.
 

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PedalPCB

Admin (Robert)
Staff member
Yep, I drew up a schematic this morning using the first link (and ripped out all the bypass switching) ...

Ended up with almost exactly what you have in the hand drawn schematic. The 1M VREF pull-up in the clean blend path doesn't seem necessary.

I'll get on it.
 

thewintersoldier

Well-known member
When I saw the coming soon section had 23 items in it, including this one, the Son of Kong, and the Doctor Robert, you can be sure I nearly fainted.
@PedalPCB on the EHX pulsar, how did you get rid of the lfo tick? I built the tone pad version years ago and tried various layouts for this and they all had the lfo tick bleed thru. I tried different opamps, layouts and everything but nothing worked. Someone once suggested an isolated ground plane for the lfo section.
 

PedalPCB

Admin (Robert)
Staff member
It hasn't been verified yet, so it's possible I haven't gotten rid of the LFO tick... but it does utilize isolated ground planes. 🤞

If you look closely at the preview image you can see where the LFO section is isolated from the signal path.
 

Feral Feline

Well-known member
SUPER-DUPER excited for this Guyatone circ!

Hoping that I'll be able to convert it to "BR2 Bottom Wah Rocker" spec, but perfectly happy with WR-3.


I seriously think Mr @PedalPCB doesn't sleep. EASE UP, take a cat-nap now and again. If you burn yourself out completely, then what will the addic... forumites and loyal customers do to get their fi... PCBs?
 
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fig

Village Idiot
How do you plan to celebrate 4 years...apart from working I mean? It is certainly a celebratory event in one's life! Congratulations!
 

PedalPCB

Admin (Robert)
Staff member
...apart from working I mean?

What does that even mean? Is that a thing? You can do that? :unsure: :ROFLMAO:

I'll be here working as usual, 23.5 hours a day, 365 days a year, weekends and holidays.

The problem is that if I take a break and have a little "me" time, guess what I want to be doing? .... Yep... Playing with pedals and circuits.
 
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