Category Ideas

FM Modulator

Here’s another interesting snippet from the Stompbox Cookbook. I was not able to get this to work. Who knows what went on in the mind of Mr. Boscorelli? Looks like the guitar signal is meant to modulate the frequency of…

Trmming the NE570

I found some good information on trimming the N570 to help remove unwanted distortion. The chip contains to two identical sections which are mirrored on either side. Pin 3 and 14 provide an input for a control voltage for the…

Sycophant

Here’s my take on the SHO. With crackle free knob. Adjust the value of C3 to create a range boost.

LM386 Gain

I’ve playing around with the 386 Audio Amplifier. This is a really great chip. It has a lot of possibilities. Looking at all of the great circuits that use this I’ve noticed there are many different ways to set the…

Stompbox PodCast

I had fun last week recording a Podcast with my pal Joe who put together some great series of sound clips highlighting various boosters. [audio:] Download

MosFET Range boost

Here’s a simple idea that you will work on almost every transistor circuit out there. We’ll apply it to the MosFET boost here. Remember the gain of the MosFET boost was determined by the Drain and Source resistors. For the…

MosFET Gain

Here’s a typical MosFET boost. The gain is roughly determined by the ratio of Drain and Source resistors. Divide the Drain resistor (Rd) by the Source resistor (Rs) to find the gain. For example if Rd = 5k and Rs…

BB sized template

Here’s an image of a BB sized template. I have made one of these to test it. Someone asked about it so I thought I’d post an image. This image was created at 200 PPI.