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Thanks to you @PedalPCB for helping build this safe, honest and detail-oriented community! Hope more people look at this thread or seek reviews on the forum before hitting that 'buy' button. It's always a great learning experience on these threads.

Holy Smokes!!! And he is still in business!!!!! Btw, I haven't got any update from him regarding my refund or the new order. Shall I dispute with my credit card company? I'm going to go with Fuzz Dog pedals microV - they've a similar layout PCB. Let me know if they're good...

With all what you said I’m impressed my first board has only one trace missing 😂 I’ll give him another day or two to respond. 🤞

Trust me I’ve asked him. He is well aware of my (painful) journey of vutron. He has been responsive throughout… although with absolutely zero productive suggestions. He responded to my email detailing the issue with a “maybe a factory issue of your PCB”. But he has stopped responding since my...

I was wondering about that. I know lovepedal uses 5089s quite a lot. Some Ross compressor clones use 13700n and some other filter circuits. I’m not much of a filter guy. This bruised and battered vutron will serve me well for a long time. If you’ve any other suggestions please let me know.

For the last time. I was desperate to not make another enclosure. Madbeans labels are flipped. Lots of lessons learned here.

Some update: I tried new 5089 from digikey. Same issue. No effect. So I ordered a new pcb from pcbguitarmania, since I was building this for a good friend’s bassist and my enclosure labels matched it. Pcbguitarmania takes forever to fulfill orders - either he is shipping 1k units a day or …...

Agree. Working on it right now. Hope the new transistors fix my issue.

Yes, I’ve twice. I think I’m pretty sure about that. I’m thinking based on @Gordo comments and the fact you’re following BOM as well, it’s very clear that I’m off-base here. Just ordered 5089s. I’ll keep you all posted.

I do see 5089 in stock at digikey. https://www.digikey.com/en/products/detail/central-semiconductor-corp/2N5089-PBFREE/4806908 Let me try those first. Thanks all! 🙂

Just checked kraken and it does use 5088s. AFAI can see the circuit in context of the NPN is identical except kraken uses ca3080. And the replacement 16pin 13700n is indeed the selling point for pcbguitarmania. I wonder if the Vb generated using 5088 is different then 5089...

I’ll dig in too. 5089 is npn and 5087 is pnp. I’ve in the past successfully used 5088 in place of 5089. But this could very well be circuit dependent. Not sure. From what in remember, 5089 is low noise brother of 5088. But maybe I missed something major in the context of vu-tron.

I did try nte47 prior to that as well- which is claimed to be a direct equivalent of 5089. Those are only ones I could source in USA. I do rightly have 5087 for the pnp. What would be the differences in the context of this circuit? Do you mean pinout wise they’re different or straight up...

It looks bad but I’ve made sure no blobs and accidental shorts are there. Again, not my usual work style but never had so much bad luck with any ppcb boards so far. Let me know if quality of pics is horrible. I’ll try to zip higher quality pics. Hope I can resurrect this board by comparing...

Same with the vu-tron. I haven’t seen any activity online. Although they’ve a “5k+ strong private group” on Facebook. I could go join Facebook just to get an idea about troubleshooting from that “private group”. But I prefer here and worst case I’ll Chuck the pcb and go other options.

Will do in a bit. I did have to go through lot of pain to replace stuff due to troubleshooting. It is definitely not a pretty sight. Interestingly, whatever I’ve done to it hasn’t changed the behavior at all since the beginning, which means I’m not looking at the right place or something weird...

Good to know! Any chance you’ve a voltage map with 13700 IC? I pretty much traced the entire circuit for smoking Gun and I’m ready to give up. Bypass works fine. When effect is turned on, I only get cleanish with less treble. No filter effect at all. I’ve checked wiring, component values...

Thanks will check them out. This is for bass guitar btw. Not sure if it matters.

Thanks for reply. Any particular reason you prefer kraken over vutron?

Has anyone tried this and got good results? https://pcbguitarmania.com/wp-content/uploads/2020/03/Vutron-Building-Docs.pdf Very few clones of mutron out there. Would’ve loved if PP carried it.