Tuesday, 25 September 2018

Elk Muff Sustainer

Description from the Big Muff Page

Among the many Japanese Big Muff clones, one of the first on the market was the Super Fuzz Sustainar, a nearly exact clone of a 1972 era Big Muff made by the Hoshino Gakki company (early units possibly made by Miyuki Ind. Co.) sometime around 1973. It was housed in an identical enclosure to the V1 Big Muff with very similar graphics. These were sold throughout the 1970s, and not long after its introduction, Gakki shamelessly changed the name from Super Fuzz to Big Muff. The pedals marked Electro Sound are the earliest, and those marked Elk Incorporated or Elk/Gakki are the later made production. 

The circuit is identical to a PNP triangle circuit from 1972, almost identical to the PNP circuit shown above. The only change made was the high pass cap in the tone section at C9. Typically .004µF, it was changed to 330pF in the Sustainar. This had the effect of retaining treble when the tone pot was turned to the bass side, making the bass range more useful. When fully in the bass position the overall volume level is significantly higher than other tone settings as well.

Note: this effect is PNP, positive ground, and you will NOT be able to daisy chain this with normal NPN, negative ground, effects unless you add a negative voltage inverter board.

With requested Mids Switch

Saturday, 22 September 2018

Blackout Effectors Whetstone Phaser

" The vintage sound of an analog OTA-based phaser melded with contemporary parameters out the wazoo. From classic and not-so-classic sounds, subtle and over-the-top phase tones, mellow through seasick pitch vibrato, ringmod, glitchy octave effects, and outright strange phased/autowah/tremolo hybrid sounds you won't find anywhere else. No doubt the Whetstone can do things that your current phaser can't "

This was a request.
Original FSB thread and unverified schematic avilable here.
Update! The first link on the right of the bottom 13600 should go from the Base of 2N5087 to the Collector of the 2N5088.

Saturday, 15 September 2018

McSpunckle Gnomeratron VTF

This was a request.
You could use external pots instead of trimmers.
Schematic available here.

Saturday, 8 September 2018

EarthQuaker Devices Dunes

"The Dunes, like the Palisades, is a Tube Screamer variant. Yet it goes a step further from the original, adding a few extra features that go a long way to matching your guitar and pickups, to your amp. The knobs are familiar—Tone, Gain and Volume. In addition, there are three toggle switches that really make things interesting:
Voice: Gives you three tonal differences; MOSFET, Silicon and Normal. These options give you different levels of compression when adding gain, and really change the overall character a lot. The Normal setting has little to no compression if that is desired.
Normal/Bright: Works great when using either darker humbuckers—switch to Bright, or if using single coils, keep it normal. Using the master tone control in conjunction with this switch gives you a lot of useful variation.
Bandwidth: What a traditional Tube Screamer lacks—here, the Dunes gives you the option of adding a lot of deep low end—great for single coils, or switch it back to the more traditional screamer mode, accentuating the midrange, with less emphasis on the bottom end."
PCB and schematic available on PedalPCB website here.