Davis Development Analog Sequencer

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via this auction

"Up for auction is an analog sequencer made by "Davis Development" for use with analog synthesisers that have cv/gate inputs. This unit appears to be either A: a prototype, B: a one-off someone made in the late seventies or C: from a kit. Not sure which, but, have you seen another? I can't find anything online about it, but it seems to have been built by a serious pro. The main board is all point-to-point wiring, but very nicely done (this definitely was not an amateurs work). It has been in fine working condition since I've owned it, although it does show its age here and there (see pics).

It should be noted that this sequencer apparently puts out a "volts per hertz" output at the "pitch out", and a "gate" at the "trig out" (both 1/4"). This explains why it works fine with the EML-101. The EML, Korg MS-series, and a few others use this type of interfacing. ARP, Roland, Moog, etc. use a "volts per octave" system, which seems to be the more common. It works with that type as well, but adds a (sort of) "ring-mod" effect to the oscillator(s) its driving. Just thought you should know, to avoid future issues (don't want any unhappy customers...) :~)

O.K., back to the details. It has a momentary button under each of the 8 steps (handy for "tuning in" your sequence), as well as a "random" on/off button, "clock" on/off, and a "range" thumbwheel switch (for making it 4-step, 2-step, 5-step, etc.). The CV output is not quantized."

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Vermona Synthesizer

Title link takes you to shots via this auction.

"This auction is for vintage analog synth VERMONA “SYNTHESIZER”. It’s made in DDR (Germany) in 80s. This 2-VCO monophonic analog synthesizer (like Moog Prodigy, Oberheim OB-1 etc.) have VCF with 24 dB/oct filter, single LFO and classic ADSR VCA envelope. Sound is really original, warm, deep, analog!

Condition is very good and full working. All keys and knobs work fine. Photos are actual. Instrument has original configuration: without midi or CV. Power - 110/220V. Out - 1/4 Jack."

As always be careful. This one is a bank wire transfer.

Casio MT-600 Filter Mods

YouTube via rolandsh1000.
"This is a demo of the effect of some circuit modifications to my Casio MT-600. Taking control of the onboard analog filter turns this thing into an altogether different keyboard. I've documented some of these mods here"

Kurzweil 250 RMX

via this auction.

"When the Kurzweil K-250 was 1983, the music industry was astounded by its ability to emulate acoustic instruments with extraordinary accuracy. The K250RMX is a rack mount version of the K250 keyboard. The instrument features very high quality sounds utilizing Kurzweil's exclusive Sound Contoured Modeling technique."

Sequential Circuits Pro-One Modded

Title link takes you to shots via this auction.

"It has a little modification on it, it's got mod Ext CV Amt nob on top right above the wheels, MOD CV INPUT, VCO A switch, PB CV INPUT, PB CVIN OFFSET switch on the back."

Synthesizer von gestern vol.2

via this auction. Vol 1 here.
Update: check out the comments if you are interested in this book.
"Synthesizer von gestern vol.2 (in German)
Matthias Becker, 1995. 148 pages, A4, high quality full colour pictures by Dieter Stork.

Matthias Becker, born in 1955, has been involved in the world of synthesizers for more than two decades. During the eightes he ran a school in Koeln concentrating its activity on the theory and practise of the synthesizer. Matthias Becker is considered beeing an expert on Vintage synthesizers. His large collection of synthesizers have been publicly exhibited Osnabruck, Leipzig, Hamburg and Frankfurt.

This is Matthias Becker´s second book with historical synthesizers. One of the best book ever!"

Happy 1st Anniversary to Catsynth.com!

Today was Catsynth.com's 1st year anniversary. Unfortunately the site is down, but I'm sure it will be back up soon enough. Personally I really enjoy catsynth.com so, cheers catsynth!

BTW, cool hat! :) Weee!

via Synthwire.

the birth of acid house

Update via HarriL in the comments:
From the "pump up the volume" documentary. You can find the three 50 minute parts here:

Pump Up The Volume - Part 1 - The History Of House Music

Pump Up The Volume - Part 2 - The History Of House Music


Pump Up The Volume (The History Of House Music) 3/3 (Eng)

my last roland mc303 jam

YouTube via spooloops.
"I decided to sell my old roland mc303 so I fired it up and made this pattern to test it out. Then I drank a little to much beer and decided to video it. My wife thinks I'm hilarious and she is probably the only girl who will ever see this. The video stops short of the audio.
+ this mc303 has a gold tooth & custom knobs
+ this is a fast tempo for me"

Acid hoedown sans TB-303

YouTube via darenager, aka fierce fish.
"Very rough mix of a track from my forthcoming album. I got a new synth yesterday (an MFB SynthII, if you are interested) and thought I'd try it out instead of my tb-303 on this track, to see if it had acid potential. It is being sequenced by my korg emx, which is also providing the drums and the synth parts.

The finished track will sound much better as I rushed this mix and some parts are a bit loud. If you like it check out my other tracks and look out for some more coming soon."