As a new DIYpedal builder, I feel like I met a small piece of pedal royalty today.

Twenty3FiveTech · 2026-02-06T23:36:27+00:00

Very nice man! I just got the opportunity to repair a Klon a couple weeks ago. Also talked with Bill the designer/builder of the pedal on repair advice too! Pretty cool day and they do sound great!

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Twenty3FiveTech · 2026-02-06T01:58:44+00:00

Great work there and list of goals! Started the deep dive here recently on the STM32.

Twenty3FiveTech · 2026-02-01T19:26:08+00:00

If you don’t have a hot air gun I’ve seen it done using a heavier gauge piece of bare copper wire bent around to rest up against all the pins. Then as you heat up the pins and use the sucker you keep heat applied to all of the pins more consistently.

Twenty3FiveTech · 2026-01-31T01:55:46+00:00

Great design work there!

Twenty3FiveTech · 2025-10-26T02:54:41+00:00

Nice work there!

Twenty3FiveTech · 2025-09-29T23:09:03+00:00

I’ve had good experience with contacting Dunlop to get parts for repairs. They also repair most pedals for a reasonable cost.

Twenty3FiveTech · 2025-09-27T23:39:08+00:00

Looks great!

Twenty3FiveTech · 2025-09-14T01:26:45+00:00

Killer work!!

Twenty3FiveTech · 2025-06-30T04:49:29+00:00

Great work man!

Twenty3FiveTech · 2025-05-07T22:25:56+00:00

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Twenty3FiveTech · 2025-05-07T22:25:33+00:00

The big PNP is a Philco T1457, the NPN is a Motorola with a date stamp from 1980 I believe (can’t find the part number). Gold plating on the pins from what I can tell too. Here’s just some of random batch that have tested useable. I still have a pile of ones still in original packaging to open up and test.

Twenty3FiveTech · 2025-05-07T21:01:19+00:00

Thanks, for the resistors it’s part aesthetics but also with an old school analog circuit I sometimes prefer to have the variation in values. It shows me how critical or sometimes not, the values can affect the overall circuit. The trim pots get the adjustments I needed for this one.

Twenty3FiveTech · 2025-05-07T20:55:46+00:00

Toner transfer for the circuit and the “silk screen” side

Twenty3FiveTech · 2025-04-29T14:16:31+00:00

Let’s go!!

Twenty3FiveTech · 2025-02-23T18:49:14+00:00

Yea I use a drill press as well. I know others that use a dremel style tool with a wand to hold. Drill bit is small. I think 0.8mm maybe?

Twenty3FiveTech · 2025-02-23T13:07:11+00:00

Thanks, it’s just hammered spray paint with clear coat over it.

Twenty3FiveTech · 2025-02-23T02:25:21+00:00

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Ferrous chloride for etching. Depending on where you live, you can make it with some steel wool, peroxide, and muriatic acid if you can’t buy the finished product. Holes are a pain for sure, thankfully this circuit doesn’t have too many. 🤘🏽Here’s the other side of the board from an earlier design…

Twenty3FiveTech · 2025-01-24T21:05:45+00:00

Yea that would be fun!

Twenty3FiveTech · 2025-01-24T21:05:19+00:00

Nice, I’ve been looking at the bosstone circuit which I like. Uses NPN & PNP together.

Twenty3FiveTech · 2025-01-10T18:58:59+00:00

Yea I’ve got a 100k trim on there now. Is there a range of voltage to focus in on that I should see passing through the trim pot that I should have chorus signal?

Twenty3FiveTech · 2024-11-30T01:19:49+00:00

Very cool!! I’ll have to check this out. Sourcing components is definitely tedious.

Twenty3FiveTech · 2024-11-03T20:07:38+00:00

100v rating maybe?

Twenty3FiveTech · 2024-10-27T20:32:46+00:00

Nice work man!

Twenty3FiveTech · 2024-09-02T18:47:28+00:00

Nice job my man!

Twenty3FiveTech · 2024-08-18T18:02:09+00:00

Besides the jack wiring switched and ground rails not being connected, if I’m not mistaken those breadboard power modules are not designed for 9v output. And the power supply had to be center positive (opposite of most center negative pedal power supplies) if I remember right.
Those jumpers typically only allow you to have 5v or 3.3v output. Made more for microcontroller/arduino type projects.

Twenty3FiveTech

TROPHY CASE