madbeanpedals::forum

Projects => Build Reports => Topic started by: dan.schumaker on June 21, 2019, 04:04:06 PM

Title: Three new builds (KOT, Muff, Fuzz Face)
Post by: dan.schumaker on June 21, 2019, 04:04:06 PM
Here are three new builds I finished up this week.  Nothing too exciting or ground breaking here.

First off is the Spin Doctor.  This is like a King of Tone, just two Prince's next to eachother (see where I got the name from, I crack myself up  ;D )
(https://live.staticflickr.com/65535/48103221333_4d044f9f25_b.jpg) (https://flic.kr/p/2ghHzP4)1942 Spin Doctor (https://flic.kr/p/2ghHzP4) by Dan Schumaker (https://www.flickr.com/photos/126000939@N08/), on Flickr

Next is the updated Rampart distortion.  This is a Big Muff with onboard relay bypass and a mids knob.  I built this one for a guy on thegearpage, but he flaked on me.  This one is built to Civil War specs.
(https://live.staticflickr.com/65535/48103170471_858854f869_c.jpg) (https://flic.kr/p/2ghHjG8)1941 Rampart (https://flic.kr/p/2ghHjG8) by Dan Schumaker (https://www.flickr.com/photos/126000939@N08/), on Flickr

Last is the updated Fracas Fuzz.  This is a silicon Fuzz Face pedal.  I have BC109's in this right now.  I switched the tone control I had on the last version to be an input cap blend, which I feel is better suited to this circuit.
(https://live.staticflickr.com/65535/48103221313_d6cb91e317_c.jpg) (https://flic.kr/p/2ghHzNH)1943 Fracas (https://flic.kr/p/2ghHzNH) by Dan Schumaker (https://www.flickr.com/photos/126000939@N08/), on Flickr
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: jimilee on June 21, 2019, 04:40:25 PM
Nice job. The spin doctor is clever.


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Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: matmosphere on June 21, 2019, 05:54:38 PM
That spin doctor is so huge!!! I didn't think you could build anything that big ;)
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: dan.schumaker on June 21, 2019, 06:03:49 PM
Quote from: Matmosphere on June 21, 2019, 05:54:38 PM
That spin doctor is so huge!!! I didn't think you could build anything that big ;)

It was a little disorienting working in something that size  ;D
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: benny_profane on June 21, 2019, 06:32:45 PM
Impressive and awesome as always! Also surprised to see a big box appearance!

What was your experience with the 109s? I just boxed up a Si FF with BC109Bs, but I'm not sure if I want to stay there.
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: dan.schumaker on June 21, 2019, 07:30:03 PM
Quote from: benny_profane on June 21, 2019, 06:32:45 PM
Impressive and awesome as always! Also surprised to see a big box appearance!

What was your experience with the 109s? I just boxed up a Si FF with BC109Bs, but I'm not sure if I want to stay there.

In the previous iteration, I had BC108's in it.  I like the sound of the 109's, I guess I haven't played around with other transistors too much.  I wanted to use the BC109's because that fuzz will be going on my Gilmour board I am working on.  Maybe in another build I'll do BC183's like the EJ Fuzz.
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: benny_profane on June 21, 2019, 08:15:23 PM
Quote from: dan.schumaker on June 21, 2019, 07:30:03 PM
Quote from: benny_profane on June 21, 2019, 06:32:45 PM
Impressive and awesome as always! Also surprised to see a big box appearance!

What was your experience with the 109s? I just boxed up a Si FF with BC109Bs, but I'm not sure if I want to stay there.

In the previous iteration, I had BC108's in it.  I like the sound of the 109's, I guess I haven't played around with other transistors too much.  I wanted to use the BC109's because that fuzz will be going on my Gilmour board I am working on.  Maybe in another build I'll do BC183's like the EJ Fuzz.

Sounds good. I couldn't get a good match with the 108s I had...the 109s had a good ratio (albeit with rather high hFE). I'm getting some interference when volume and fuzz are maxed out though, so I've gotta see what I can do about that. I think I also want to change the series resistor with the volume pot to get more output.

The EJ is biased super low and is really compressed, right? That'd be interesting. I don't think I'd want that as a main fuzz, but in a small enclosure, it wouldn't be a bad choice to have.
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: dan.schumaker on June 21, 2019, 08:59:36 PM
There is definitely plenty of volume on tap with this one.  I do have the external bias control on here, so you can bring the voltage down to the EJ level.
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: Bio77 on June 21, 2019, 09:19:43 PM
Those look great. 
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: KMRO on June 21, 2019, 10:06:34 PM
These look so good.  I'm impressed with your detail work in those small enclosures.  Had to look up the civil war big muff . . .
Title: Re: Three new builds (KOT, Muff, Fuzz Face)
Post by: benny_profane on June 21, 2019, 10:12:08 PM
That bias control is handy. I've been putting more fuzz bias controls on the outside lately, but kept this one at two knobs.

I meant to say earlier, I'm really impressed by the integration with the relay switching with your 1590a builds. Very sleek and clever implementation!