TLN-428 Voltage Controlled State Variable Filter

"The TLN-428 is a state variable filter built around a Curtis Electromusic Specialties CEM 3320 chip. Four simultaneous outputs (all with two pole response) are provided: low pass, high pass, band pass, and notch. A built in mixer allows for two audio inputs. The filter frequency can be set using a panel mounted pot, a "one volt per octave" external control voltage, or via two external FM inputs with attenuators (one reversing). Filter resonance can be set using a panel mounted pot or an external control voltage with a reversing attenuator."

Title link takes you to more info and samples.

Nervous Greg

YouTube via greggo89. "Nervous Gender cover"

EML Prototype?

via this auction

Details:

"To my knowledge, this is a unique synth. It appears to be an EML prototype. Basic features are - 2 VCOs, multi-mode filter, VCA, AR envelope, sample and hold, and spring reverb.

Given the professional build of the case, the use of some pre-made circuit boards and some breadboards, and the overall sound, it appears to have either been made by EML or made by someone closely associated with EML. I don't have any specific documentation on this synth, but I do have some tech sheets and circuits that seem to closely resemble most of what's in here.

Some paths are pre-patched, and I am including 10 patchcords to make additional connections. I've tested most of the functions, knobs, and jacks and so far, the only thing I need to look at is the LFO LED is not blinking.

The raw oscillators and the multimode filter sound great and the spring reverb is an Accutronics and definitely high quality.

As you can see from the pictures, the VCF board is labelled EML VCF and the VCA board says EML-100 along the edge. Most of the boards have hand-written dates of 1977 on them, so that gives a good idea of when this was assembled.

So, now you know what I know about this. It's a 110v power supply. I didn't see an obvious way to switch it, but it looks like the same power supply as used inside the EML 101, EML 200 and EML 400."

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Robert Moog - news profile from the early 90s

YouTube via postingoldtapes.

Modified Toy Orchestra on Sonic State

Title link takes you to a pretty cool vid on Modified Toy Orchestra and their love for toy instruments. The music they create with this is pretty amazing.

Modified Toy Orchestra
"Modified Toy Orchestra are a collection of abandoned and reconstructed Childrens electronic toys, conducted by a selection of musicians.

As a solo artist Brian Duffy [bottom left] has been performing, lecturing, and demonstrating the Modified Toy Orchestra and the philosophical implications of his experiments for six years."

Lemaril Studio 1989 and studio35d

Remember this awesome video? Here's a shot of the studio. The video was uploaded by studio35d and it turns out studio35d has a pretty cool blog of his own. You can check it out here. You can read more about this shot and the vid in his post here.

via the Matrixsynth forum

Buchla 200e and Haken Audio Continuum

Gorgeous shots sent my way via Richard Lainhart of his Buchla 200e and Haken Audio Continuum. Title link takes you to a couple more.

To see what someone with this gear is working on and with (people and gear), check out Richard's O-Town Media.

And yes, samples of the two will be coming. : )




And a nice Matrixsynth by Richard Lainhart. : )

C64 Vids

Etwas Zeit - Mikron 64

YouTube via kleenefotze.

mikron 64 - was ich weiss

YouTube via ketukaru. Two favorites of convoythecat. Was the C64 capable of speech synthesis?

attackingdrone - Custom Oberheim Modular drone

Remember this shot from this post? Below is a drone of the custom Oberheim SEM modular by Dennis.



download here
Also see this post.

AMAZONA.de and the ELKA Synthex

Title link takes you to AMAZONA.ed's ELKA Synthex Page in German. There are some nice pics and samples. You can find a Google translated version in Enlish here. Be sure to click on the keys link on the left when you get there for more synths, new and vintage.