IBM Overdrive 2016 version

[tubelectron]

Hello Diyer's All !

This is about a rebuilt of a precedent model which was that :



A double single-transistor-plus-diode-clipper overdrive. Not bad, but not so amazing.

I decided to go for something more useful. Here's the 2016 version of the IBM Overdrive :















It is a combination of a Ge single transistor overdrive plus Ge diode clipper = the 1st pot on the left and the 3 selectors, with the well known ProCo RAT Distortion model 1981 Revision B = the 3 following pots.

You can switch the overdrive, or the RAT, or both, the overdrive being placed in front position.

At the flick of a footswitch, you can have "sweet spot bluesy" overdrive or "from Santana to heavy" distortion.

Is there a drawback ? Yes, a little one : when the overdrive is engaged, the RAT also engaged with high distortion and low filter settings (= hight treble content), the hiss of the Ge transistor becomes a bit audible - even if this one has been accurately sorted in IceO leaks and noise. Of course, with a Si transistor, that would not occur, but the tests that I have made showed a "harder" tone, so...

The only thing remaining from the 1st version is the IBM France nameplate 

A+!

A+!

[Mark Hammer]

Nice to see someone use the trapezoidal Hammond boxes.  I think they look nice.

[Jarno]

Looks great, like the styling! 

[tubelectron]

Thank you, Guys !

Yes, the Hammond trapezoidal shape boxes can allow interesting 50s-60s styling pedals. I think that I'll be back to them for other stompboxes releases in the future.

A+!

[CommGuy107]

What a great looking pedal...inside and out!

[tubelectron]

Thanks & Welcome to DIYstompboxes  !

A+!