Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › Show Off Your Build › The start of my Zoso Tone, and a couple of questions…
- This topic has 14 replies, 4 voices, and was last updated 2 weeks ago by
kenjancef.
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AuthorPosts
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September 13, 2026 at 11:25 pm #40534
kenjancef
ParticipantGot some great help here to get my Zoso Tone build started. I ordered the kit from SmallBear Electronics, which made it WAY easier to get the components I need, and they are labeled very clearly.
I wasn’t too happy with the soldering on the line of resistors to the left, for some reason I just couldn’t get it right, but finally did. It looks a bit ugly, but I think it’ll work.
Questions:
- For the footpedal switches and order switch, I know they can only fit a certain way since the holes are rectangular, but other than that, there isn’t a certain front/back/left/right for those switches, correct? I can just mount them as they fit?
- For shorting the LED, if I use the LED’s on the boards themselves, I short the holes on the dual wiring board, correct? But if I use the board I short the ones on the individual boards? And to short them it’s just a blob of solder connecting both holes?
September 14, 2026 at 12:18 am #40536
BarryKeymasterThe switches only fit one of two orientations as you see and it doesn’t matter which one.
If you ordered a pre-drilled enclosure from Tayda then the LEDs are mounted on the wiring board so you will need to short the Main Board LED pads and I would use a trimmed component lead to do that and not just a solder bridge.
As for the soldering just take your time and develop your technique. I assume you are using a fine conical tip that is tinned well. Hold the hot tip (650-675°F) to the pad and component lead at the same time for 5 seconds before applying your 63/37 tin/lead solder. Cold solder joints are the #1 reason for a build error. Also if you are not happy with a solder joint simply go back and re-flow it with your freshly tinned iron. That is the #1 troubleshooting tip that fixes most build errors.
From our previous thread be sure to check out the other builds on our forum:
Here is one Zoso Tone build and here is alternate Zoso Tone build that you can use as a visual reference.
September 14, 2026 at 12:43 am #40537kenjancef
ParticipantYea, that’s what I meant.. the orientation.
I use a TS-100 soldering iron, and I do have a fine conical tip. I’ll look at it closer tomorrow to see if I do need to reflow.
I did get the box from Tayda, it should arrive tomorrow.
I have those 2 threads pinned in my browser and use them as a reference. Thanks for the links.
September 16, 2026 at 8:29 pm #40555kenjancef
ParticipantSo… I think I screwed up…
I made sure to be SO careful about soldering, and where things go, and all that…
I got everything soldered and wired. Put it in the box. Powered it up. No LED’s.
I thought there was a problem, but I connected a guitar, and it actually was working. I messed with the controls for a bit, just to make sure, and all was ok. I took it back to the bench and realized… I soldered everything to the dual wiring board upside down! A lot of 4-letter words came rolling out..
I never had any luck using a soldering sucker or wick, but I tried, and I couldn’t remove the PCBs from the dual wiring board. So… is it a major problem that the board is upside down? Before I soldered the LEDs I made triple sure that the positive went to positive, and the negative went to negative. So, other than having the board upside down, I can’t figure out what is wrong. I did jumper the LED locations on the Fuzz and Amp PCBs, using a spare piece of wire snipped from a resistor.
I’m taking a break before I mess it up any more…
September 16, 2026 at 10:35 pm #40556kenjancef
ParticipantAnd yea, I just saw the writing on the board about the switches… ugh… I managed to get the board off, hoping I didn’t damage the fuzz or amp PCBs. I’ll buy new stomps and a switch, was able to save the resistors.
Totally my fault…
September 17, 2026 at 5:55 am #40559
brdModeratorHey the great news is the pedals worked. here are some tips.
de-soldering takes some finesse. I does help to add just a little more solder first, the extra flux helps the old solder flow. Also try to find a good solder suck, Soldapult brand work well.
Always try to preserve the main board and do your de-soldering on the less expensive or more durable components.
when you have a row of pads to de-solder like the ribbon cable you can try using a piece of solid wire to distribute the heat while gently trying to pull it loose.
I Hope that helps
September 18, 2026 at 10:18 pm #40572kenjancef
ParticipantShe is complete, and working!!!
After that stupid mistake of flipping the dual wiring board, I actually had a spare, due to it coming with the kit I ordered from SmallBear Electronics. I just had to order 2 stomps and the toggle switch. But it’s all wired up, buttoned up, and tested. I’ll have more time over the weekend to actually sit with it and figure it out. Can’t wait!!!!!
And thanks Barry and brd for the help!!!

September 19, 2026 at 6:51 am #40574
brdModeratorSweet! Looks great.
I really like the WattAmp, I play direct into a PA sometimes and it is one of my favorite amp-sim pedals. It’s great for Gilmore tones too. Enjoy it, you earned it.
What’s next?
September 19, 2026 at 12:41 pm #40576
BarryKeymasterLooks fantastic, and thanks for sharing!
The first one is always the hardest. While there is still plenty of great stuff to learn it will all come much easier now.
September 19, 2026 at 5:32 pm #40584kenjancef
ParticipantI am actually thinking of the Metal Godz. The tone on that is amazing! Being I’m a fan of classic rock (Zeppelin), and 80’s hair metal/heavy metal, the Godz just might fit the 80’s part.
September 19, 2026 at 7:13 pm #40586
BarryKeymasterMetal Godz definitely fills the NWOBHM need.
September 19, 2026 at 11:28 pm #40589JasonWickersham
ParticipantNWOBHM.. now that is one i have not heard in a LOOOOOONG time!
Gotta go spin up some Budgie now..September 19, 2026 at 11:39 pm #40590kenjancef
ParticipantI’ll cue up some Iron Maiden (Number of the Beast) and Def Leppard (High N’ Dry)… lol…
September 20, 2026 at 1:51 pm #40592
BarryKeymasterSeptember 20, 2026 at 2:09 pm #40593kenjancef
ParticipantI just might… I saw Priest on their Defenders tour in 80-something… lol…
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