Crumar’s T1 is a surprisingly nice 70’s drawbar organ that used the latest octave divider chips that were present in a lot of keyboards of that era. An additional feature that makes it more useful than your average organ is the addition of a very rich, fuzzy bass synth voice that can be added to the lower octaves of the keyboard. The synth voice has a basic resonant filter and a decay envelope that you have some control over. The organ voices sort of drop out in the bass section, so it really helps add a thick low end that would otherwise be lost. It also has a really nice LFO that can be applied as both a tremolo and a vibrato and the speed is controlled with a rotary pot.
The Taurus is a funny little (actually quite awkward and heavy) bass synth produced by Moog between ’75 and ’81 that is designed with a one octave, organ style pedal board meant to be played with your feet. It has a limited number of actual features… just one sawtooth waveform for both of its oscillators, the obvious 24db Moog ladder filter, portamento (glide), and a simple attack and decay envelope for the VCA and filter. It’s basically meant to do one thing well, which is make bass sounds, and it does it as well as any other Moog synth I’ve played. Though, I will admit it is a fun and unique experience to sweep the filter with my foot using a giant foot-sized slider.
We had a Prodigy in the workshop at the same time, which is the Moog Taurus’s immediate Moog monosynth contemporary. Comparing their sounds when set to equivalent settings, even before comparing the schematics it was clear that even at its highest cutoff setting, the Taurus’s filter, compared to that of the Prodigy, was still cutting a good deal of high frequencies. It was really designed to be used as a bass synth only. Continue reading “Moog Taurus (and a Prodigy)”
This is a really fun synth! EML was a lesser-known American synth company competing with Moog and ARP during the 1970s and made some unique instruments. The EML-101 is a semi-modular duophonic synth similar in structure to the ARP 2600 and very unique and powerful. The bulk of our work on this involved designing and installing a circuit that allows the synth to accept standard 1 volt per octave-scaled CV via its “SEQ” input, as its oscillators have an unusual scale of 1.4 V/octave with a 4.6-volt DC offset. Continue reading “EML ElectroComp 101 – 1 volt per octave conversion mod”
The Moog Prodigy is the slightly bigger brother of the Moog Rogue. Features-wise, it is the next “step up,” with the important addition of two ADSR generators (in which D must equal R, however) but some of the same limitations. Continue reading “Moog Prodigy”
This is the beginning of a massive MOTM modular project that we’re probably going to be working on for a very long time. We were handed a few big plastic tubs containing dozens of modules ranging from apparently complete to semi-built to just bare boards and we’re just supposed to slowly complete and test them all. Continue reading “CGS “Synthacon” Filter and Blacet “Dark Star Chaos” Modules”
Darian just finished a job putting together this pedal (for the same person who I did this pedal for last week). It is actually two fuzz pedals in one, Jed’s Peds “Soda Master” and “Farting Cones,” based on Devi Ever’s “Soda Meiser” and “Torn’s Peaker” respectively. The client didn’t want us to put any labeling on it, so the picture above is probably pretty meaningless and boring, but there it is… a very loud and very noisy dual-fuzz pedal.