For Fuzz Friday we have the original Swollen Pickle from Way Huge Electronics. One of the unique things about this Muff clone is the use of a quad transistor array instead of 4 individual transistors. This makes for a quieter pedal and more consistency in transistor matching. However if you don't feel like tracking down an MPQ3904 or NTE2321, you can use 4 individual transistors. Just note the pinout in the layout below.
I'm in the middle of doing this pedal and I use transistor sockets like this http://d13z1xw8270sfc.cloudfront.net/resize/90736/1430738229872_sil-3.jpg/400/400/0/
in case I use transistors , which I use for mounting
ReplyDeleteI'm in the middle of doing this pedal and I use transistor sockets like this http://d13z1xw8270sfc.cloudfront.net/resize/90736/1430738229872_sil-3.jpg/400/400/0/
DeleteIt's verified. I use bc549 transistors. Very quite and sound good to my ears.
ReplyDeleteI cant find 470k resistances, in my country there are 475k comercial resistances. is there any problem if i use this value?
ReplyDeleteThat's close enough. Should work fine.
DeleteAn error was made in the PCB, 1.5 ohm should be replaced by 1.5 kΩ. This is the emitter resistor of the output stage.
ReplyDelete