Tools, Tones and Toys for Guitarists
This is the Peach Guitars version of the Hudson Broadcast, as traced by V1nce69 and posted on the Guitar FX layout forum. Others also did work on tracing in this thread, so sorry if I left anyone out. Lots of great gut shots and a bunch of measured voltages there too. The layout is basically … Read more
Since I’ve been on a bit of a Harmonic Percolator thing lately, I thought I might do some 0.15″ mojo layouts using Albini / Mad Bean Pepper Spray values. Here’s one built by Sean of Spiller Instruments. Looks great, as do his other builds. INTERFAX HARMONIC PERCOLATOR, ALBINI VALUES – VERO LAYOUTS
A nice Harmonic Percolator variation from Catalinbread. They’ve kept the bones of the original, and have added an input capacitor blend, as well as a pot to dial in the diodes on the output. Link to schematic Link to tracing journal on Aion FX – and think about buying one from Aion CATALINBREAD KARMA SUTURE, GERMANIUM VERSION … Read more
Haven’t done a tag board build for a while – so here’s a classic. INTERFAX HARMONIC PERCOLATOR HP-1 – TAGBOARD LAYOUT Being tag board, I’ve used 1/2w resistors and axial caps. You could use something more practical (smaller), but if that’s what you want to do, I would recommend using a different layout, as this is … Read more
The RCA BA-31C would have been found in broadcast consoles of the day (late sixties), as a microphone preamp module. I think it may have been the starting point for the Hudson Broadcast, as they look quite similar and I’ve heard some references made to RCA. If it is what they used, I can … Read more
This is the original layout for the Hornby Skewes Hybrid Zonk Machine (Silicon / Germanium). Unfortunately, the trimmer needed to be a different size for the layout, so I had to make a strange triangular marker. HORNBY SKEWES HYBRID ZONK MACHINE – 0.15″ VERO LAYOUT (ORIGINAL)
All the details are listed in the previous post – this is a 0.15″ version of the yellow Colorsound Hybrid Tone Bender. I did the previous layout on standard size vero, and after using 0.15″ vero and tag board on a lot of builds recently, it just seems very tiny now, so I did … Read more
Such a lengthy heading… I’ve been waiting to find out what was going on with this one, and it has recently been traced on the Pedal PCB forum. There’s also a great back story here, with some info on the Zener diode. The schematic can also be found via the Pedal PCB link above. … Read more
I would recommend breadboarding this prior to committing to solder. The Interfax Harmonic Percolator is very tweakable, and sometimes takes some adjusting to get it right. There’s pages on the Harmonic Percolator on DIY Stompboxes. INTERFAX HARMONIC PERCOLATOR – POINT TO POINT LAYOUT
This hybrid Tone Bender MKII is a more budget conscious offering from Sola Sound (Macari’s) via David Main of D*A*M and it uses NPN transistors, which is a bit of a bonus. SOLA SOUND TONE BENDER MKII PROFESSIONAL SILICON HYBRID – VERO LAYOUT Watch out for the hard to spot cuts under the 470 ohm … Read more