Schemaatic is avaiable HERE.
Wednesday, 31 July 2019
Tuesday, 30 July 2019
Monday, 29 July 2019
Saturday, 27 July 2019
PUE Sustain Filter
A great sounding Big Muff variant from Poland dating from the early 1980's. Original has a buffer stage after the tonestack and no volume control. I did a stock layout and a modified layout with a normal recovery stage and volume control. Can't find much information on the stock BC622 transistors but any medium high gain silicon works fine.
Stock with Mid switch
Modified circuit
Friday, 26 July 2019
Thursday, 25 July 2019
Dwarcraft Devices Robot Devil w. mods
Stock circuit
And a modified circuit which has separate volume controls for one octave down and two octave downs. Very useful and combined with the Starve control this thing can get really nut.:o)
Dwarfcraft Devices The Great Destroyer
Verified by Drago. A word of caution though (thnaks Sesh!), make sure to use a proper CD 4049BE.
Some reputable sellers like Banzai Music sells chips that simply wont work as intended.
Wednesday, 24 July 2019
Electric Druid Hard Bargain Distortion
"the tin man" had a look at the v5 schematic and spotted some changes since the earlier versions had some issues. Layout updated.
Tuesday, 23 July 2019
Kazan Booster 4 transistor version
Now verified with a catch. Couldn't get it work until I replaced the diode connecting to the base of Q3 with a jumper. Also, for more volume, increase volume control to 10k-25k.
Monday, 22 July 2019
Borisov Formanta Fuzz
A really good sounding fuzz found in old soviet Borisov Formanta guitars. Added a pre gain control in front and a cap blend for the body control in the tonestack. I also tweaked collector resistor of connecting Q2 to 8,2k. Sounds loud, gnarly and heavy.
Original has KT315B transistors but 2N2222A, 2N3904 and BC107 works really good in there too, just mind the pinout.
Original has KT315B transistors but 2N2222A, 2N3904 and BC107 works really good in there too, just mind the pinout.
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