Alesis A6 Andromeda: Bass sounds

YouTube via YpsilonVector.

JoMoX Sunsyn

images via this auction.

Roland SH-2000

images via this auction.




YouTubes via mavropigi.

E-MU Emulator III

via this auction.

Roland JX-8P

images via this auction.

MAM MB33 II

via this auction.

sample 1
sample 2

• 100% analog audio synthesis
• VCO : Square wave and Sawtooth
• Suboscillator
• 18 dB low-pass filter like the original TB-303
• Pulse width modulation (PWM)
• Distortion effect
• VCF IN (External audio signals can be applied to the VCF IN socket for processing by the MB 33 II.)
• MIDI In / Out / Thru
• MIDI can send/receive controls for the cutoff, resonance, ENV mod, accent, decay, distortion, and autoslide on/off
• Reso adjust
• Autoslide

Plexus Instruments CR-800

via royce on AH.

"the only trick with the triggering is the cr8000 voice boards need a downgoing (positive to negative) trigger. this can be accomplished with an inverter, such as a doepfer or analogue solutions inverter module. i wound up using an elby midi-trigger converter, with a reprogrammed pic. the upside is that THE TRIGGERING IS VELOCITY SENSITIVE. this is fantastic, and allows for subtle nuances."

More images here.

MMM JP VCF

Mattson Mini Modular JP VCF
Jim Patchell Signature
Multi-mode Filter

Jim Patchell's DIY Synthesis

Many of you might recognize the name Jim Patchell. For those of you that do not, Jim is about as respected as it gets in the Synth DIY community. He started his first synth project back in 1973:

"Well, this project was started in 1973, or there abouts. I was at Santa Barbara City College at the time. The library there had Radio Electronics magazine, and I would go there to read and do home work. When I saw the article on building your own synthesizer, I was hooked immediately. This was, of course, the legendary Paia 2700. Some of the circuits were build as is, others I didn't like. The VCO was one of those. I used the national semiconductor application notes for the LM324 to build the voltage controlled triangle oscillator. Back then, I had no money to speak of, so everything was pretty much built from salvage parts. The LM324 was a free sample. They were not cheap back then. I did buy some LM741/747/748 type opamps to make some of the modules. All of the transistors were salvaged. Pots were a very strange collection of pots salvaged from old radios (I could kick myself for that misdeed)."


Low Pass Filter pictured. He's contributed quite a bit to the synth community. You can see a bit of his work in the following three sites.

The Jim Patchell Synthesizer D.I.Y. Web Page
Jim Patchell's First Synthesizer Project
A New DIY Synthesizer Project

He is also responsible for the electronic design and PC Board layout for the MIKADO Analog Sequencing System posted here.

Plan B releases two new MMModules :)

Two new Plan B products wil begin shipping in two weeks:

1) The Model 9 Mixer/Attenuator is the forth in a series of utility modules from Plan B. A truly modular, multi-tasking 5 in, 3 output mixer, it's balanced inputs are suited for either AC signals or DC control voltages, or both simultaneously.

Along with these mixing options, each of the four main inputs channels are fitted with dedicated Attenuator Outputs which allow access to the leveled output from each channel by itself, independent of the mix. Many thanks to Plan B Norman Fay for thestellar idea of adding independent post fader outputs.

Go here for details.

2) The third in our utility module series, the Model 29 Dynamic Mult is a unique 1-to-5 signal splitter in which four of the outputs are equipped with manual level pots, allowing for both contour control and signal distribution. The perfect companion for non-attenuated VC inputs, the Model 29 requires no power supply connection to operate as it takes it's ground reference from the cables patched into it.

Go here for more details.