Tools, Tones and Toys for Guitarists
Great sounding tremolo here from Fran, and something for me to finally build with the batch of ICL8038 ICs I bought a couple of years ago! :o) To keep the size down and make it 1590B friendly I’ve done away with the rotary switch used in the original, and instead I’ve used a DPDT on/on/on … Read more
Another project collaboration between Rej at Grind Customs and CultureJam, similar to the Shoot the Moon but with a couple of subtle differences including a shape switch instead of the wave pot (similar to the 2 knob version we did). If you don’t want to roll your own with the LDR and LED, the Vactec … Read more
Based on the Vox Repeat Percussion but with greater control options, and another advantage is this version uses the 2N6027 Programmable Unijunction Transistor which is still available cheaply and in quantity, so you don’t have to search around for 2N2646’s and pay top dollar for them. I haven’t included the connections required for external expression … Read more
Moving on from the Valve Caster, and as recommended by Neil McNasty, here’s Rick Holt’s Vibracaster. The tube components are very similar, but the Gain, Tone and Volume controls have been removed and components selected for unity gain and a simple LFO added. There are lots of mods suggested for this on diystompboxes but I’ve … Read more
Here’s the original ’79 two knob version of the EHX Tremolo…. Here’s a modded layout that may cure the reported LFO clock bleed. Note that the semi-transparent 47µ cap is there just as an example. You should probably try different values there to find out what works the best. Also the 470R resistor should be … Read more
It’s a modded Vox Repeat Percussion so more use for those 2N2646’s you stocked up on. Info about the original: The Hummingbird is, at heart, a hard and choppy tremolo. What comes out is more akin to vintage synth style oscillations. It’s core is based on the old Vox Repeat Percussion with several updates to … Read more
With 8 knobs and 3 switches I really didn’t need to keep the size of this one down, but it will fit in a 1590B if anyone is utterly insane :o) You can shave off another column if you solder D1 and D2 in the same hole and move the 1u cap over to the … Read more
As with the original I’ve left a gap in the centre of the board for the LED and LFO to allow them to easily be bent to face each other and laid flat, ensure the LED and LDR legs don’t short against any of the links or component leads in between. Heat shrink tubing or … Read more
Request. This one comes from Harrymatic’s instructables.com project. Check out the page for more information and demo clip with keyboard. This one has really low part count, but tons of links keep the board pretty big…
Original design by Dan Green from Commonsound and now a very popular DIY project, this version based on the Tonepad schematic and corrections. For optional Symmetry pot to give you a sawtooth LFO in each direction, take a feed from Speed 3 and inline, solder in an anti-parallel pair of 1N4148 diodes. 1 of the … Read more