Thursday 31 October 2019
Wednesday 30 October 2019
Tuesday 29 October 2019
Monday 28 October 2019
Saturday 26 October 2019
Friday 25 October 2019
Thursday 24 October 2019
Wednesday 23 October 2019
Tuesday 22 October 2019
Monday 21 October 2019
Malekko Plus Ultra 213 (fuzz section)
Fuzz section of Malekko Plus Ultra 213 Fuzz which is a big muff variant with a mid oriented tonestack. Verified.
Sunday 20 October 2019
Steel Panther "Face Melter"
Update 220110.
New layout from scratch. Verified and with no oscillation issues.
Saturday 19 October 2019
Friday 18 October 2019
Wednesday 16 October 2019
Poltava Fuzz Wah sans LFO
Another crazy USSR Fuzz Wah. As with Spektr 1 the LFO section is omitted.
Fuzz circuit
Wah circuit
Tuesday 15 October 2019
Vita Fuzz
Fuzz Face derivate with a Big Muff style tonestack manufactured in Riga, Latvia in the late 70's. Originals has a foot controlled treadle which adjusting volume. I subbed 30k resistor connecting to collector of Q2 with a 50k trimpot for fine tuning bias.
Unverified
Monday 14 October 2019
Spektr 1 Fuzz Wah sans LFO
Lot's of love for old soviet circuits here lately, find it very interesting since sometimes the designers started from scratch with no input from the oustide world resulting in some quite unique designs.
Here is a gnarly beast, Spektr -1 fuzz Wah. I omitted the LFO section connecting to Wah circuit since it needs a seaparate battery. It calls for quite a few PNP Germaniums which is still cheap and widely avaiable. Still not sure about the D814 zener diodes. Voltage rating varies between 7v and 11v depending on its suffix which isn't marked on the schematic.
I also moved two of the internal trimpots which controls volume output to panel mounted pots.
Currently unverified.
Fuzz section
Wah section
Sunday 13 October 2019
Tesla AYZ 025 (Fuzz section)
Fuzz section lifted from of a fuzz wah from former Czechoslovakia which was produced in late 70's and 80's. By looking at the schematic it shares some similarites with Foxx Tone Machine.
Friday 11 October 2019
Wednesday 9 October 2019
Tuesday 8 October 2019
Monday 7 October 2019
Sunday 6 October 2019
Saturday 5 October 2019
Friday 4 October 2019
Thursday 3 October 2019
Tuesday 1 October 2019
Subscribe to:
Posts (Atom)