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If it has stabilized, put you finger on the transistor, you will see it countdown again. Spooky!

Quick! Go away and hide! This is a countdown..

Like Robert said only little improvements possible. Did you omit C12? This makes it briter and tiny bit louder. If you like the led clipping (middle position) you could a swap with the leds. The reds into D4 and D5, while use blue leds as d2 and d3. Blue leds have higher vf.

No input buffers. A FF needs a passive guitar impedance to work as intendend or a debuffer circuit with an input transformer, if you want to use it upstream in your signal chain. Old school circuit, y’know.

Yes, the schematic is faulty. It should show R4 or the trimpot, as alternative option.

To my limited experience the pot settings on the FF circuit were more important than different trannies. I swapped different tranny combos around until i found the one. My friend liked the Fuzz pot on fixed point of 80% and opted for input pot instead. This works like the smoothing out with the...

To my experience hfe 120 is quite high for a Germanium. I could be wrong, i have about 20 russians from 17 to 94. My point is to use a 120 for the second PNP. BTW the hfe 17 is now in a Dragons Breath. The NPN are more expensive and not as easy to obtain, but you could use a PPCB TwinFace board...

He wrote: I was at Ralf's wife's house and I know this thing... Have fun with it! The finished pedals were all tuned by Ralf. I checked the "finished" ones from the box... without Ralf's tuning, none of them sounded like a Blue Line should. Ralf always did the final tuning, and only the ones...

Then i would try another BC550C. I had some messages with a guy who visited the widow of Ralf Reichen and saw the pedals in a big cardboard box. He checked those which looked ready, but said they all lacked ‚the final tuning by Ralf‘. Sounds a bit like sprinkling of magic fairy dust to me, but...

Markus for you info: i just recieved a pic from inside a original Blue Line. It looks like Hermida Audio Zendrive (PPCB) with 2 switches instead of Tone pot. So the Trannies could be 2N7000.

Robert does not have to see it in flesh. He needs some clear pics from every side (maybe you have to put it out of box) and answer of some questions concerning not clear parts and connections.

I wonder what the black cross meant. Maybe not working?

@Markus Kersius : The Blue Line Overdrive was the Pedal of Larry Carlton. Kinda Zendrive / Dumble pedal variant. You see it on Reverb for some hundred bucks. Seems a great idea to share it and maybe others with @Robert. This is a great way to preserve Ralfs heritage for the Future.

I have heard the name Tonehunter. This is an obituary. https://www.gitarrebass.de/allgemein/till-tone-ralf-reichen-ein-persoenlicher-nachruf/ and instagram

My band mate had the original pedal. I offered him to mod it, but he decided to sell it. The 3 settings go from 56 (middle) to 103 and 876 nF. We planned to change c7 to 10nF and c8 to 56nF. Best to use pin adapter on this spots and try different values.

The colour combo is rad.

Looks like a cap in series with the flow of the signal is too small and cuts off too much bass.

I am located in Europe, but Mouser.com seems a good source for nearly everything in electonics.

That means he's human. AI is very good at coding.

I decided to buy a breadboard to judge on mods. I found that most of the mods are less interesting for me. Like gain mods going too high or distort too much, but hardclipper mods were often quite useful. Can't speak of Klon mods. I had Klon Clone with two independent pots instead of the dual...