PSK FG-1; spot the differences

All about modern commercial stompbox circuits from Electro Harmonix over MXR, Boss and Ibanez into the nineties.
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Bernardduur
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Post by Bernardduur »

So I have this PSK pedal in that needs some repairing....... and while opening it up I had this sensation of "I have seen this before.........."

5 minutes before that I just finished repairing a Boss BF-2B

Spot on copy of the Boss BF-2; except for the manual knob. In the Boss pedal the depth knob goes into the manual knob, in the PSK the depth pot is grounded on that side.

Pics:

Overview
Overview 2; spot the differences
Boss unit
PSK unit
'No more....... loud music.......'
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bajaman
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Post by bajaman »

MN3207 in one - MN3204 and different clock driver IC in the other one. :lol:
bajaman
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Bernardduur
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Post by Bernardduur »

:D; you left out the 2 caps!
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lohstah
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Post by lohstah »

the bf-2b is the single best bass flanger in my opinion - one day i´ll get around and make that damn PCB layout to build one or two clones with true bypass for myself (and my 2 pedalboards) - i already have a mn3204 lying in my parts bin just for that reason :lol:

cheers,
lohstah

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Bernardduur
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Post by Bernardduur »

lohstah wrote:the bf-2b is the single best bass flanger in my opinion - one day i´ll get around and make that damn PCB layout to build one or two clones with true bypass for myself (and my 2 pedalboards) - i already have a mn3204 lying in my parts bin just for that reason :lol:

cheers,
lohstah
Need some PCB pics?
'No more....... loud music.......'
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lohstah
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Post by lohstah »

no, thanks, i got an original one at home. :D that´s why i know that it sounds so good. :wink:
i just can´t get around making a pcb, never did a pcb layout before, only vero (but some rather big, like boss oc-2).

cheers,
lohstah

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