[2481] Amp In A Box

Date: December 19th, 2018 | Comments : [1] | Categories: DIY.

The concept of a pedal that sounds like an overdriven amplifier has been around a long time, and in the late 1990s, I contributed to the field with several designs. The most influential of them has to be the Booster 2.5 pedal, which was a derivative of my earlier Mini-Tubes Preamp.

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[2470] Fake LM308

Date: December 13th, 2018 | Comments : [2] | Categories: DIY.
LM308-fake

Fake LM308 in a Mooer pedal… well, not an original National Semiconductor chip anyway.

So, is it a fake if you mark a plain cheap op-amp that meets or exceeds the specs of the original LM308 with that part number but the internal circuit is not the same?

It will work in circuits designed for the LM308 and perform well. It does the job. But at the fringes and limits of the electrical characteristics where many fx pedals operate, it will not be the same as an IC with the internal circuit design of a real original NatSemi LM308. Is that a fake or just a poor substitute?

 


 

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