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Thanks all! I'll build something and post a photo to see if I'm on the right direction.

Z

Stupid question but basically I just drop the components in, add in the jumper wires and solder stuff together on the front and back of the board and it'll work?
I'm looking at using the first image. What are the little red squares indicating? My breakout board has A-J and 1-17 matrix [5x17, 5x17]. On the back each column [a-e and f-j] of 5 is connected together [a~b~c~d~e] break [f~g~h~I~j].

So for example, DMM- and ground (assuming this is black terminal from 9v) are connect at the 10k resistor via a jump? And that resistor is connect via a jumper to 4u7 cap, which is connected to the 10k behind it via a jump and then to the IC? A real life picture of how one of these is wired up would be helpful but there are scant resources online surprisingly.

https://tagboardeffects.blogspot.com/2012/07/jfet-matcher.html

I got some vero board to build a JFET tester. Does anyone have a good wiring diagram for how to build one? Or pictures of one you've built?

This is what I bought. Do you think it will work?

ElectroCookie Mini PCB Prototype Board Solderable Breadboard for DIY Electronics, Compatible for Mini Arduino Soldering Projects, Gold-Plated (6 Pack, Multicolor) https://www.amazon.com/dp/B081MSKJJX/ref=cm_sw_r_cp_api_i_E8YXM5XP0A9HBF1E2S25?_encoding=UTF8&psc=1

I rotated it and while the pedal does sound better I still have absolutely no swell. I'll look for the method and see what I can figure out! I have about 15 more SMDs I can try and will report back.

My voltages look off don't they?

Fair enough on the guarantee. I misquoted it without malintention. I did not test it as I'm not 100% certain how to do so.

Which JFET? The 2N5457 (as SMD)?

Okie dokie still no gas. I bought some SMDs from AionFX which were guaranteed to be in the right range but no swell effect. The compressor sounds fantastic. I did some board measurements and found some odd ones. I'm not certain how to interpret these so I'm looking to you smart dudes to lend a hand and maybe point me in the right direction.

Totally! I bought some but unsure if I mounted it correctly. It's not doing anything for the swell even using the tuning walk through. The volume is also REALLY low even with the level cranked. I have to dime out that guitar to make it sound good. Here's a picture of how I constructed the SMD onto a chip.

I found this thread with a similar issue but I cannot determine that the OPs issue was ever resolved. https://www.madbeanpedals.com/forum/index.php?topic=31323.15

Jimi's issue was that his 5457 jfet was not is spec.

He is using a 2134 not a 134. A 134 will not work

Yes, the trimmer will only help with fine adjustments. You'll need a JFET as discussed in the build doc and the linked thread. Where were you seeing reference to an OP134?

The BOM indicates OPA134. I figured it was a typo until I actually found one on Mouser's site. So, I bought it. But I actually installed an OPA2134PGA.

Do you think the 1uf cap in place of the .68uf cap matters?

So I definitely need a 5457 that has voltage between 1.25 - 1.5? Any idea where I can buy a bunch? I just bought a transistor measuring tool.

Hello! My first VFE build almost done!

I just finished my pedal last night and test drove it. Turned on first stomp and it is the quietest and smoothest compressor I've ever used. It sounds amazing. However! There is no swell effect. I can't seem to get it to trigger and I've tried the tuning method suggested in the build doc.

I found this thread with a similar issue but I cannot determine that the OPs issue was ever resolved. https://www.madbeanpedals.com/forum/index.php?topic=31323.15

I also noticed he's using an OP2134 instead of the OP134 in the build docs. Is that intentional? Or is the build doc a typo? I installed a OP134 in mine.

I also didn't have the .68uf cap so I used a 1uf cap.

Any thoughts or suggestions on what to try next would be appreciated, especially if you sorted it.

I'm using a Gorva C65, which is close to a 125B. So I think I have plenty of room. The only thing that vexes me is that I don't have a good drilling template for the board. Anyone have something in illustrator or an SVG export of the board with pilot drills for the pots?

Took some close up shots of the silk screen. I think I'm just a dumb ass and overthought it. It literally should just be 1:1 jumped across the board.

Point taken on the pots. So they are backwards. So just flip the pots around?

Hey folks,

I was wondering if I could bother you to take a quick look at the wiring of these pots and the wiring from the power board to the main board. Does it look accurate?

The build docs are out of date for the power board to the main board. So I went with the silk screens to match connections from board to board.

For the pots, I looked at the schematic to identify what I thought were the ground pads to wire to lug #1 of each pot.

Really appreciate your time

Hello!

Do you have to use the 9mm plastic/shaft pots or could I use a regular pot, pin mount or otherwise?

Nasty hum is still present with a 220nf film cap jumped between 7 and 3 on BBD1.

So the hum must be coming in before the BBD. I'll start poking around. I'm going to order a honey tone amp to put on my bench for the audio probe work.

What I mean is that I am getting good dry signal and when I click on the pedal, I am getting very low output, barely audible, but no crazy hum.

Does the polarity of the cap matter? I'll test tonight.