This is a library of perfboard and single-sided PCB effect layouts for guitar and bass. I'm not an electrical engineer by any stretch of the imagination, just a DIY'er who likes drawing layouts. It is meant for the hobbyist (so commercial use of any of these layout is not allowed without permission) and as a way to give back to the online DIY community.
Got a request for this one. Another take on the classic Tube Screamer built for Brad Paisley. The traditional input/output buffers have been swapped out for JFET-based buffers, and there are two toggles for Presence and EQ (mids). Should be able to squeeze it into a 1590B.
Just a heads up: I built one of these up on stripboard, and although there is buffering within the circuit, I had to run a separate buffer pre-input to prevent oscillation at certain setting. I didn't try running shielded in/output wiring, so that could be another potential fix for that. Just something to consider when planning your enclosure. Sounds great though!
hi first sorry for my english i am from austria! one question: the 511Kohm resistor is for biasing the j102 ? and can i replace the two 511k resistors with trimmers? maby iś easier to adjust the voltage.( about 4.5V right? )
i forgot, has anybody build an MXR micro Chorus (3007 version) ? im looking for a pcb,and parts layout. i found one unverified project but itś hard to read, if anyone has informations please let me know!
Just finished this up today, as a longtime project sitting on the shelf. Definitely a different kind of drive, and definitely suited more for single-coils than humbuckers. You can GET BY with humbuckers, but you have to turn up the presence & tone. NOTE: I used a Type 2 on/on/on DPDT switch, and needed to move the Mid 1 wire to pole 4 and the Mid 6 wire to pole 3. Wiring it up to poles 1 & 6, the left and right toggles were way dark/bassy and the middle setting was way bright. Reversing those two as noted above made it way more usable, and I'm assuming that's how it should be wired.
Just a heads up: I built one of these up on stripboard, and although there is buffering within the circuit, I had to run a separate buffer pre-input to prevent oscillation at certain setting. I didn't try running shielded in/output wiring, so that could be another potential fix for that. Just something to consider when planning your enclosure. Sounds great though!
ReplyDeleteThat is what i had been waiting for. Thanks.
ReplyDeleteThis one works and sounds great...Had to use Lug 2 of the Volume pot for output instead of Lug 3 for some reason, though.
ReplyDeletehi
ReplyDeletefirst sorry for my english i am from austria!
one question: the 511Kohm resistor is for biasing the j102 ?
and can i replace the two 511k resistors with trimmers?
maby iś easier to adjust the voltage.( about 4.5V right? )
greetings from austria
bluesanderl
511k = 510k
Delete51pF = 47pF
i forgot, has anybody build an MXR micro Chorus (3007 version) ?
ReplyDeleteim looking for a pcb,and parts layout.
i found one unverified project but itś hard to read,
if anyone has informations please let me know!
thanks
bluesanderl
Just finished this up today, as a longtime project sitting on the shelf.
ReplyDeleteDefinitely a different kind of drive, and definitely suited more for single-coils than humbuckers. You can GET BY with humbuckers, but you have to turn up the presence & tone.
NOTE: I used a Type 2 on/on/on DPDT switch, and needed to move the Mid 1 wire to pole 4 and the Mid 6 wire to pole 3. Wiring it up to poles 1 & 6, the left and right toggles were way dark/bassy and the middle setting was way bright. Reversing those two as noted above made it way more usable, and I'm assuming that's how it should be wired.