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DIY Stompboxes => Building your own stompbox => Topic started by: Earthscum on February 06, 2011, 04:09:51 AM

Title: Tasteless Broadcaster - Slightly Tweaked Lofo Mofo
Post by: Earthscum on February 06, 2011, 04:09:51 AM
This is one that's been sitting in a bag for about 8 months, and I finally got around to getting it done. I have a layout I'll fix and upload in the morning.

I used 2n5088's to calm down the hiss to a tolerable level, then added it back it, I think, with all ceramic caps. It definitely has a sharper sound with caps... more of a plastic sound than with poly's.

The V+ can be 9V or even lower. I didn't measure voltages, but got a hint to check it out when I powered down the effect from my PS. It did the typical clean-up as the supply drained out, but held there way longer than any other circuit. At (somewhere around) 3V, this thing cleans up nicely. I'm going to run it off of a pair of AA's, and use momentary switching, myself. At 9V, it sounds like you have a pocket radio cranked so grandma gets annoyed across the room. Lower voltages are more akin to having it at a tolerable level sitting on your desk, but still loud enough to play some 560AM ZROCK (Gawd I miss that station!)

(http://img80.imageshack.us/img80/6579/tastelessbroadcaster.png)

This is basically what I tuned a Lofo Mofo to be. I added in a bit more filtering and now this sounds more to me like the old black pocket radios I'd have as a kid. (Like These) (http://www.flickr.com/photos/transistor_radios/2148273162/)

Ahh... the old FlavoRadio (http://www.retrothing.com/2010/04/radio-shacks-classic-flavoradio.html)... when you lick it, it tastes...

like...

Nothing. (seriously, I suck at naming stuff, lol... that's why our band is "Three White Guys and a Black Skater"... they were just too lazy to come up with something better!)
Title: Re: Tasteless Broadcaster - Slightly Tweaked Lofo Mofo
Post by: Earthscum on February 06, 2011, 06:59:01 PM
So, I labeled the diode wrong (number). This new schem is good to go. I have a PCB burned, populated, and tested out... no way to get soundclips right now.

This is designed to mount a pot over the top of the components. If your caps are small enough, the transistor is your only limit to height.

Enjoy!
(http://img200.imageshack.us/img200/6579/tastelessbroadcaster.png)