madbeanpedals::forum

Projects => Build Reports => Topic started by: Guitarmageddon on May 29, 2012, 12:34:29 AM

Title: The Jazz Rat from the Black Lagoon
Post by: Guitarmageddon on May 29, 2012, 12:34:29 AM
Slow Loris and a Clean Blend (the vero add-on.)
I really like to use a rat with my archtop when I do jazz gigs, but like to be able to blend some clean back in help preserve some clarity and stop the thing from howling too much.
I used the simple Buff and Blend circuit from Beavis, Clipping options are leds, none and a pair of BS170 configured as clippers. (my favorite)

(http://i1122.photobucket.com/albums/l524/guitarmageddon9/IMG_8634.jpg)

(http://i1122.photobucket.com/albums/l524/guitarmageddon9/IMG_8623.jpg)

(http://i1122.photobucket.com/albums/l524/guitarmageddon9/IMG_8609.jpg)
Title: Re: The Jazz Rat from the Black Lagoon
Post by: jtn191 on May 29, 2012, 01:29:20 AM
fantastic job, man!

I just finished one of these today too! mine was built to the specs of the build doc. Curious about those BS170s, are they the quietest/most compressed?--like the 1N914s are?

I'd like to see the vero layout of the clean blend...the only one I've seen uses an opamp
Sweet etching and photography too!
Title: Re: The Jazz Rat from the Black Lagoon
Post by: Guitarmageddon on May 29, 2012, 01:48:07 AM
Thanks!
Yes, the JFET clippers are similar in level and feel to si diodes.
Just tie the D & S legs together as one leg and G as the other, then mount them in opposite directions as you would diodes.

It's a pretty simple blend circuit, and probably isn't as good as others for some applications, but is small and works well enough here for me.
Here's my vero:

(http://i1122.photobucket.com/albums/l524/guitarmageddon9/BuffnBlend.gif)

Title: Re: The Jazz Rat from the Black Lagoon
Post by: lincolnic on May 29, 2012, 03:14:46 AM
Loving the design!
Title: Re: The Jazz Rat from the Black Lagoon
Post by: raulduke on May 29, 2012, 08:45:53 AM
Very nice 'mageddon.

I imagine that clean blend would be pretty cool to use in a bass overdrive pedal (increasing the in and out caps to suit of course)?