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Hi all. I got some 2N3565 that @Robert has for sale on the site and want to get confirmation that flat edge should go at 4:30 where a tab is printed on the board? TIA

I didn't see and stray wires but I reflowed the connection and a few other solder joints that looked suspicious and that did the trick. Sounds great!

Thank you @PJS. The first time I measured the ICs i held the back probe to a bare part of the case but this time I pressed to the negative terminal of the DC power and got different results: Top TL074 1 2.65 2 2.65 3 2.65 4 0 5 0 6 0 7 0 8 2.65 9 2.65 10 2.65 11 0 12 3.30 13 2.45 14 4.25...

I just finished this one up and unfortunately I'm getting no sound when engaged. In bypass it works perfectly. All four LEDs light up, although only the ON/OFF indicator turns off when bypassed, the other three continue to throb. Here are the voltages from the 2 ICs: Top TL074 1 4.20 2 4.70 3...

Thank you every one for your help and suggestions. I put together a diagram, trying to incorporating insulated jacks into a jfet buffer spiltting into two signal buffer/inverters. How does this look?

Alright, I think I can piece this together, but have one more question; If I'm only going to include one phase reversal should it be on the same or opposite channel as the ground lift?

Thanks. I don't think I've used an isolated jack before and when I searched Tayda for isolated jacks nothing came up. What makes them different and do you have a link you could share?

I'm taking another look at this idea: 1) @Robert can you confirm if the Signal Buffer/Inverter has an input buffer? If not could I use the simple JFET buffer or is there a better way to do? 2) It looks like this transformer is what other have used, but I don't under stand how to integrate it...

Finished these two projects over the weekend. The Paragon Mini gave me a little bit of trouble, but was worth it because I improved my debugging skills. Both sound great. I socket R3 and R20 so I could change the gain levels. I have a 1K resistor in channel 1 played with a couple of values in...

@z2amiller that did the trick! Thanks for taking the time to help me.

Good catch! They are both off according to the DMM. I'll work on switching them out and report back.

A few more details I subbed the MA856 with BASS33. I reflowed all my caps I checked for continuity (there was none). I measured the voltage drop on all the diodes which were all about 0.6 or 0.7 V except D1 and D6 were both about 2.1 V.

So this breaks my streak; my last few build worked without any debugging... The pedal works in bypass but I get no sound when either or both sides are engaged. The LEDs light up fine. I reflowed a bunch of pins, but after measuring voltages on the OpAmp, I think that is where the trouble is...

Hi all, I would like to dip my toes in the Wet/Dry amp world. I was thinking of using 2x Signal Buffer / Inverter PCB's but have a few questions: 1) Do I simply wire both boards to the the tip of the input or is there a better way to do it? 2) Is there an easy way to add a ground lift to one...

Thanks @MichaelW I'll have to give him a lesson. I recently got a Little Sister to go with my Fillmore 25 and have wanted to try doing a wet dry setup. I've been debating using this splitter or the PPCB passive ABY. I would go with the passive ABY in a heart beat if it had a phase reversal.

Nice clean build @giovanni Does any know if this would work well to split for a wet-dry rig?

I had previously tried to build the mini version a while back but failed, and was never able to debug the problem. I had always want to get one of these on my board, so I decided to give it another try. This time I decided to not make things any harder than they needed to be and went with the...

Hey @Robert any update on that 4Tap?

So it looks like the IEB0105S09 DC/DC Converter is not available anymore. Mouser is recommending IE0509S as a replacement. It looks like it has the right specs; Can anyone verify if this will do the trick?

@Robert any update on when the 4Tap DC will be back in stock?