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Projects => Build Reports => Topic started by: Boba7 on June 11, 2017, 01:44:32 PM

Title: A couple projects for the weekend: Deluxe Demo Tape Fuzz and a modded tuner
Post by: Boba7 on June 11, 2017, 01:44:32 PM
Hey

So with my little family away for the weekend, I got time to do a couple projects!

First is a Demo Tape Fuzz with two modifications:

- A simple opamp clean boost hardwired in front of it (I made it so when its fully ccw it's unity gain and I can have a stock Demo Tape Fuzz )
I found the schematic here: http://www.jer00n.nl/2010/07/28/clean-boost-for-guitar-or-bass/ and made a simple vero layout for it. It's a good buffer too, which is quite needed in my opinion with this circuit.

- A switch to add diodes in the feedback loop of the Demo Tape Fuzz: either 2x Red leds or 4x 1N4148. Center is off to keep a stock Demo Tape Fuzz.

Otherwise the circuit is stock except for a 22pf in the feedback loop. I used a ne5532 which sounded best to my ears, and an opa134 for boost cause I have some laying around.
It's a fantastic circuit, and with the added boost it can have A LOT more gain, and the decay at higher gain setting is less farty. Also the optional diodes really smooth out the sound.

I had a really beaten up white enclosure in my drawer that I had used for a couple projects, so I decided to use it. It already had 6 holes, that's why I had to think of some mods! I used a Stazon ink pad to "paint" it. The switching board comes from diy.thcustom.com.

Next is a simple Korg Pitch Black tuner with an optional Klon Buffer. I just put it on a switch on the output jack. Very practical, really happy it went so smoothly. The layout comes from effectslayouts.blogspot.com (thanks a lot). Can't use the battery anymore, that's fine with me.

(https://img15.hostingpics.net/pics/633192DLXDTFfront.jpg) (https://www.hostingpics.net/viewer.php?id=633192DLXDTFfront.jpg)
(https://img15.hostingpics.net/pics/471331DLXDTFpcb.jpg) (https://www.hostingpics.net/viewer.php?id=471331DLXDTFpcb.jpg)

(https://img15.hostingpics.net/pics/494436PitchBlackmod.jpg) (https://www.hostingpics.net/viewer.php?id=494436PitchBlackmod.jpg)
(https://img15.hostingpics.net/pics/309960PitchBlackpcb.jpg) (https://www.hostingpics.net/viewer.php?id=309960PitchBlackpcb.jpg)
Title: Re: A couple projects for the weekend: Deluxe Demo Tape Fuzz and a modded tuner
Post by: mjg on June 11, 2017, 10:10:26 PM
The ink finish on the white enclosure looks really good.
Title: Re: A couple projects for the weekend: Deluxe Demo Tape Fuzz and a modded tuner
Post by: storyboardist on June 12, 2017, 02:03:13 PM
Nice work all around man!
Title: Re: A couple projects for the weekend: Deluxe Demo Tape Fuzz and a modded tuner
Post by: bluescage on June 19, 2017, 01:21:25 PM
Nice job!