60´s Japanese Fuzz | Old School

[boratto]

Ready for ressurection. As usual, is not verified yet, but is revised by Neil McNasty. So, be prepared for something nasty like Shin-Ei era.

[Hozy31]

Does anybody know what the pot values are for this? Just building at the moment.
Thanks in advance.

[anders]

50kB for Expander and Level, Noise ctrl is 5kB. Let us know how it goes. I'm curious about this one.

[Hozy31]

Thanks Anders, couldn't seem to find any other info on this one. Yes i am not sure how this is going to turn out. Retired to guitar playing for the rest of the night so will see how it goes tomorrow, thankfully i have the next two days off work so will have a chance to mess with it. I had to use the reverse engineer parallel resistor calculator to get 4k and 250k resistors and used 33nf instead of 30. Hoping its not to specific for the values. Let you know how i go.

Oh, also i don't know if anybody uses this but i have found it very useful. http://www.sengpielaudio.com/calculator-parallel.htm Just plug in what you want and the percentage of deviation and voila!

[Silver Blues]

3K9 and 270K will likely be close enough.

[Hozy31]

Ok this is verified. By the way the SK30 pinout on the vero is the wrong way round. It took me a while to realise. Its quite an unusual effect in that it acts more as a boost but with quite quiet trebly fuzz when the expander pot is turned CW. I used 2SK30 and B109Cs (bending pins to fit). It definitely has that Ge feel but not as strongly as other Ge fuzzes. It goes well with a low distortion in front but i find it makes other pedals too bright. I think it needs tweeking a bit so will try other Ges other than 1N60ps and definitely try different transistors.

Thanks for the vero boratto.