Build report: Boss BF-2 flanger with MN3204 mod ! +++

[Steben]

Ok, guys,

I got the chips this week and installed one. I had some freaky shivers since when I plugged the MN3207 out and the other in I had the same bypass sound as was the effect off. With a little touching I had clicks and blops so the circuit itself wasn't bypassed.
I thought I wasted my money allready on electroshocking the BBD chips somehow...

However my non-logic debugging soul came on time with the idea of turning the chip once the other way (opposite of orientation of all other chips ) and it worked like charm!
Man! What a difference. Real good jetting as a mather of fact with regen on zero. Of course it is more noticeable on distorted signals and humbuckers.
With regen and manual on full you still get a nice Envelope filter like effect. Ok, no fantastic chorus (wasn't perfect either before), but it's a flanger right?

And I haven't even installed a rail-to-rail chip in the LFO section yet...wow...
Must test that too....

A nice mod. Just get hold of a MN3204!

[stm]

Good to see things are going smooth.

Now you have raised the stock value of the MN3204's 

Please keep us informed how you do with the LFO mod.

[Steben]

Of course, the fact you desolder the stock chip and place a 8-pin socket in is always a good thing, whatever chip you try.
And yes, I did not alter the regen cap. It seems as a second-choice mod to me in order not to get a hard to find chip.
Regeneration was born as a way to make your effect more drastic they say...

Now you have raised the stock value of the MN3204's 

Please keep us informed how you do with the LFO mod.

Well, I still have one, so raising it won't harm ... 

Yeah, LFO mod...
The problem is there are good unexpensive chips around, but there is always that crappy minimum order stepping stone...
I have to wait until I have a reason to spread the cash. "Won't take thàt long..." a voice in the distance shouted... 

[stm]

Basically if you have an extra IC, you can consider doing the mod for someone else so as to absorb the cost of YOUR mod.

I ordered some TLC2262's as free samples from Texas Instruments when I heard they were required for the Sans Amp GT-2 and they were rail-to-rail opamps, so I wanted to give them a try for other purposes as well.

[Steben]

So the sansamp works on these beast aye?
I ordered 2262's and 2252's. I wonder... do they clip nicely?