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What are your voltages on the regulator and charge pump and do you have a different one to try? If all the parts are good, in the power section, and working right, it's not possible to have 4.5v and pad 1.


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I do have an extra of each, I'm noticing when I plug in the pedal to the power supply the LT1054 does get kinda hot. Can you please give me a crash course on how to check the voltages properly with this one?

Here is an opamp pinout diagram. Power up the pedal. With the DMM on DC voltage, lace the black probe in any ground point. With the red probe, measure the voltage on each pin of your LT 1054.


Also measure each leg of your 78L15.


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Thank you for that helpful info jimilee!

My current readings on the OPAMP are as follows:

1 - 2.32
2 - 0.90
3 - 0.02
4 - 0.04
5 - 0.02
6 - 2.60
7 - 1.37
8 - 9.29

and the 78L15 reads:

Input - 7.04
Ground - 0.02
Output - 8.50

How confident are you the LT 1054 is in the right spot and it's good. That's where your problem is.


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What are your voltages on the regulator and charge pump and do you have a different one to try? If all the parts are good, in the power section, and working right, it's not possible to have 4.5v and pad 1.


Sent from my iPhone using Tapatalk

I do have an extra of each, I'm noticing when I plug in the pedal to the power supply the LT1054 does get kinda hot. Can you please give me a crash course on how to check the voltages properly with this one?

Here is an opamp pinout diagram. Power up the pedal. With the DMM on DC voltage, lace the black probe in any ground point. With the red probe, measure the voltage on each pin of your LT 1054.


Also measure each leg of your 78L15.


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What are your voltages on the regulator and charge pump and do you have a different one to try? If all the parts are good, in the power section, and working right, it's not possible to have 4.5v and pad 1.


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Very cool rustic look.


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Hey Paul, I'm terribly sorry to hear that. My wife was diagnosed with that probably 30 years ago. She is still feisty as ever, keep your head up buddy.


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Power supply? Some power phasers are sensitive to different power sources.


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Jimilee, my bad man. I said input/output jack but I meant what is the in/out on the PCB. My choices I guess are RTN SND.

I've got a dead pedal and it may be a ground issue.

Sorry for the confusion, I tried to lay it out as simple as I could. Send is in (lug 5) and return is out (lug 7).


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Oh nice!


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That's just a regular 3pdt wiring scheme. In goes to lugs 4 and 9 out goes to lug 8. Board send goes to lug 5, board return goes to lug 7. Ground is lugs 2,3 and 6, led is lug 1.


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Woohoo!!! Nice!


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Got any sound files or videos?


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I'm still trolling and still building...a lot really. In fact why in the hell am I still building a lot. It doesn't make any sense. I don't need pedal number 170!

If we only built what we needed, none of us would be here.


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Very nice. The top is an etch?


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So it's basically the same without a treble cut? Does it play well with others if you have to as the tone knob on your guitar?

Yeah. I guess what I meant by "you can use your guitar tone knob," was more of a "I never use the treble cut on a Rat, because it's never bright to my ears (on my bright amp) and the cut does nothing useful, IMO." I'm really sensitive to sound, and it's not overly harsh to me at all. Same thing with a G2, only that one needs mods to make it brighter. The Rat is just, "tone section useless" 

Ah, ok, makes sense. I've lost almost all of my hearing, so it wouldn't bother me either.


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So it's basically the same without a treble cut? Does it play well with others if you have to as the tone knob on your guitar?


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