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I stopped buying from PCB guitar mania after finding open (or missing?) traces on the last two projects I built. I had to jumper them to get them to work. I was wondering if I had blown a trace on the last project, so ordered a second pcb on sale. The new pcb had a missing trace. YMMV

Did you audio probe the first board? Check R43 , looks like a 4k7 instead of a 47k, also R12 might be a 1M instead of 2M2

It's from the output of aion's gibson L5 clean channel preamp. Was thinking of building one and curious about those diodes

Whats the purpose of diodes in this configuration?

I really like my aion luna, 4ms Tremulus Lune clone. I keep looking at other tremolos, but this does everything I want.

I buy most of mine from digikey and mouser. Kemet, Wima, Panasonic, Vishay, Wurth, cornell-illinois Tayda can be hit n miss.

I would start by audio probing the base of Q6, see if the signal gets in that far. If it does, move up to base of Q9 and SW-1, if it doesn't, base of Q5 then Q15

R19 also an output impedance to help signal transfer to whatever it plugs into General rule of thumb: High input impedance, low output impedance.

Love the graphics

I'm looking at building the xenotron and nuerotron as well, fun circuits! Great graphics!

I like the aion version of the engineer's thumb. Quiet, works well, not hard to use. Not the absolute best, but it works.

Anyone have The documents or know when they will be released?

First you should know about the safety factors with building tube amps, THEY CAN KILL YOU. Learn to work safely with them. Getting zapped it NOT fun. If you're on FB "Tube Amp Builders (DIY)" is a good group. +1 on starting with a champ , tweed princeton or GA 5. Helps with the learning...

For anyone that built the Ceaser Chorus how useful is the Lag control? Do you move it often or is it more of a set and forget? I have A BYOC CE-2 chorus and wondering if it would be a fun/useful mod to add.

Loose jacks?

Digikey: I live on the west coast of Canada, $100 cad is free shipping, otherwise an $8 flat rate via fedex, most of my caps, resistors, semiconductors, hardware. NextGenGuitars (located in Canada) for pots, enclosures, jacks, led bezels Anything they dont carry mouser, smallbear, love my...

I bought one new for 100 when they came out then sold it for 50... still regret it

Smallbear has them but again shipping =P

Veruman Tube screamer clone - I want to build one of these https://www.thetonegeek.com//product-page/above-top-secret-ats808-pcb-set-compare-to-vemuram-tsv808

MOST IMPORTANT - be patient - take your time, dont do it all in one day, easier to make mistakes if you rush it. I started with full kits, then pcb's and drilled and finished my own enclosures, then tried stripboard and perf boards Whatever path you take, I'd recommend an easier circuit to...