OP
RVA
Ambassador
OK, I am on it.
DIY Pedal build - Rookie Style!!
- Thread starter RVA
- Start date
OP
RVA
Ambassador
OK,
Between pin 4 and 8 = .48
Between the positive lead on the back of the DC jack and the negative pin - a soild 9.5 (just like the board).
Between the negative lead on the back of the DC jack and the positive pin - .48
So, I am getting a shot to the positive pin, right?
ivan H
Ambassador of Tubes & Grooves
Well something is amiss there. With the black lead of your multimeter inserted into pin 4 & red lead of your multimeter inserted into pin 8 we should have 9V. So, we have a good ground at pin 4. With no power to the DC socket, can we check continuity (ohms scale of your meter) between the + of the DC socket & pin 8? Should read zero ohms.
Edit; I just looked at the time, I'm really late for work, I'll keep checking in with my phone. We will get it sorted. Cheers
OP
RVA
Ambassador
OK, next problem. When the mini toggle to D5 & D6 (1588 diodes) is engaged, I get modulation sounds. When it is not, I get no sound. It appears to be in the righ polarity, assuming the blue band is the cathode end.
(Note edit above - the missing connection was to the 5817 diode.)
OP
RVA
Ambassador
Well, I found another missed connection, but same result. Wacky noises!
OP
RVA
Ambassador
At least I have power and some sort of noise! Maybe Ivan has an idea of what modulation without change when actually playing the guitar means. I will continue to re-trace my steps until I find out what it is. But for the rest of tonight, I am going to play the resistor diode blues on a tasty ax!
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ivan H
Ambassador of Tubes & Grooves
Ok, I knock off in a bit over half hour, then drive home & shower quickly, so a bit over an hour I'll look on computer, cant see much with phone. IIRC plexi asked for a schematic so I'll put that up now. This pedal only uses one half of the King of Tone circuit shown in the scematic. Power supply circuit is same. Back shortly. Cheers
OP
RVA
Ambassador
Thank you Ivan. These errors appear to be my difficulty following the schematic for the first time. I must continue to hunt down errors on the underside. Just let me know if you see any obvious errors on the top side of the board if you could please.
ivan H
Ambassador of Tubes & Grooves
No problem. Do you happen to have something like a 10X magnifier or jewellers loupe to check all board tracks & connections with? I use these two magnifiers
The chrome, flip out one is 10X, the other "stand" type even stronger, & believe me, I have often needed them for this same reason, so don't beat yourself up.
Sysco, yes, a kit type build or a printed circuit board type build is very definitely easier, however I couldn't find (google search) a kit version of the POT, nor a Vero board (or stripboard) layout for it. This was the only one I could find,
AnalogMan Prince of Tone Perf and PCB Effects Layouts: AnalogMan Prince of Tone
Though I haven't built it yet, it is verified. The lower right diagram is for a "DIY printed circuit board", though I've never bothered to do one.
Ok, I'll spend some time reading posts & looking over the pics you posted earlier, & I'll also make sure I'm up & fresh for at least a few hours before I have to leave in the morning. Cheers
Edit; thankyou for helping Sysco, & I seriously wish I could do diagrams etc on a computer like you do. Unfortunately, I'm,,, digitally challenged. Cheers
The chrome, flip out one is 10X, the other "stand" type even stronger, & believe me, I have often needed them for this same reason, so don't beat yourself up.
Sysco, yes, a kit type build or a printed circuit board type build is very definitely easier, however I couldn't find (google search) a kit version of the POT, nor a Vero board (or stripboard) layout for it. This was the only one I could find,
AnalogMan Prince of Tone Perf and PCB Effects Layouts: AnalogMan Prince of Tone
Though I haven't built it yet, it is verified. The lower right diagram is for a "DIY printed circuit board", though I've never bothered to do one.
Ok, I'll spend some time reading posts & looking over the pics you posted earlier, & I'll also make sure I'm up & fresh for at least a few hours before I have to leave in the morning. Cheers
Edit; thankyou for helping Sysco, & I seriously wish I could do diagrams etc on a computer like you do. Unfortunately, I'm,,, digitally challenged. Cheers
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OP
RVA
Ambassador
That is nice of you. Don't go the too much trouble. The answer is there and I will find it. Being forced to correct a mistake is s great learning tool.
I have a florescent light which surrounds a big magnifier (what are those called again?!) which provides ample magnification
syscokid
Ambassador of War & Peace
I need to look into these again. I bought a real cheap one, and it's just about useless.Do you happen to have something like a 10X magnifier or jewellers loupe to check all board tracks & connections with? I use these two magnifiers
The chrome, flip out one is 10X, the other "stand" type even stronger, & believe me, I have often needed them for this same reason, so don't beat yourself up.
The art of selecting; copying; pasting; add a few lines; easy peasy... When you're retired, you just have so much more time and patience to figure things out...
Fluorescent Magnifier?
ThE following works for me as long as I have plenty of flooding light. It allows plenty of moving around freedom; fits over reading glasses; lenses are interchangeable. You can add a light ring around the lense, but it's not very bright:
OP
RVA
Ambassador
I have one of these, but those goggles are riotous !I need to look into these again. I bought a real cheap one, and it's just about useless.
The art of selecting; copying; pasting; add a few lines; easy peasy... When you're retired, you just have so much more time and patience to figure things out...
Fluorescent Magnifier?
ThE following works for me as long as I have plenty of flooding light. It allows plenty of moving around freedom; fits over reading glasses; lenses are interchangeable. You can add a light ring around the lense, but it's not very bright:
View attachment 16767
Maybe the goggles work work well with this headlamp, which I use frequently
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