Mitchell

Mitchell

DIY Electronics Swap Meet 2010

Bay Area DIYer’s should make it to the DIY Swap meet on Feb 21 at 924 Gilman St in Berkley CA. For more info: The first three were a great time lot’s people with lot’s of stuff. Anyone from…

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…

What am I missing?

Assume there’s your favorite booster at the input, what is D2 doing? This is the most common clipping arrangement that I have seen. It seems that D2 does nothing. If the boost at the input is running off 9V then…

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.

Fretboard Journal

One of the Ugly Face’s that I built got a mention in the Fretboard Journal. No picture though. Which is too bad. They took a picture of a bunch of other more common name brand things. Really Tim Escobedo should…

Ring Mod

Here’s an idea for a ring modulator. I used a 3080 for the balanced modulator from the Ring-Modu-Matic. I used an envelope, from the Meatball,  to control the carrier frequency. This is untested. The controlling the FET to turn on…