Holtek HT36A4 8-Bit Music Synthesizer

"The HT36A4 is an 8-bit high performance RISC-like microcontroller specifically designed for music applications. It provides an 8-bit MCU and a 8 channel wavetable synthesizer. The program ROM is composed of both program control codes and wavetable voice codes, and can be easily programmed.

The HT36A4 has a built-in 8-bit microprocessor which programs the synthesizer to generate the melody by setting the special register from 20H~2AH. A HALT feature is provided to reduce power consumption.

Features
* Operating voltage: 2.4V~5.0V
* Operating frequency: 3.58MHz~12MHz (typ. 8MHz)
* 8 bidirectional I/O lines
* Two 8-bit programmable timer with 8 stage prescaler
* Watchdog Timer
* Built-in 8-bit MCU with 208×8 bits RAM
* Built-in 32K×16-bit ROM for program/data shared
* Mono output
* High D/A converter resolution: 16 bits
* Polyphonic up to 8 notes
* Independent volume mix can be assigned to each sound component
* Sampling rate of 25kHz as 6.4MHz for system frequency
* Eight-level subroutine nesting
* HALT function and wake-up feature to reduce power consumption
* Bit manipulation instructions
* 16-bit table read instructions
* 63 powerful instructions
* All instructions in 1 or 2 machine cycles
* 16-pin DIP/SOP package"

Click here for the product page.
Anyone know what these are used in or if anyone has done any DIY work with them?

Oh starry night

flickr by Paulkaiju
(click for more)

I picked this one for the name of the shot.

Be sure to check out V patch I as well.

Doepfer Modular
MOOG Little Phatty

Alesis Mircon Demo 2 By Tony 2008

YouTube via acaruso36. Follow up to this post.
"Sounds are all presets & programs from Alesis Micron Synth."

The ARP 2600: Oscillators Part 3

YouTube via AutomaticGainsay. Parts 1 and 2 here.
"Here is another chapter in the saga of the documentation of the ARP 2600's oscillator sound and functionality. Thank you for watching, everyone!"

Oberheim TVS

images via this auction

New Speak and Spell Schematic Added to Casper Electronics

click here for the post with link on Casper Electronics. Nice image/art.

E-70 o) Fool's Gold: the Alaska Overture [Ode to Electone]

YouTube via FlametopFred, via the Forum.
"by vamping on some UK and Supertramp, came up with this new composition that fuses the two ideas behind "Alaska" and "Fool's Overture"

Finding that the Yamaha E-70 home organ is a very inspirational (and fun) music making machine. Everyone should have one. Some assembly required."

Yamaha CS-5 repair

via Cliplead where you'll find info on how to remove the front panel as well as a link to a flickr set with more shots of the inside.

TENORI-ON To Launch Worldwide

"In 2007, we held the exclusive UK launch exhibitions of TENORI-ON at Phonica Records London (4th Sept) and theMint Lounge Manchester (5th Sept). Following the huge TENORI-ON success in the UK, we can finaliy proudly announce to hold the TENORI-ON world Launch Tour." more info including the schedule here

Pt 2 Analogue Systems rs370 module 6-Voice Synth + MUCH more

YouTube via bigcitymusic.

Part 1 here.

"Here is part 2 in our demo of the multi-faceted rs370 eurorack module from Analogue Systems. Known as the "Polyphonic Harmonic Generator", it is a 6-voice polyphonic modular synthesizer w/ extensive control via MIDI and control voltages (CV) simultaneously. If that isn't enough it is also a polyphonic MIDI to CV converter!
* 6-voice polyphonic
* 4 oscillators per note
* 6 envelope generators( 6 stages and 10 control points) which can be patched out and back into the synthesiser
* 6 VCA's
* 2 LFO's (each with 5 waveforms plus midi sync etc)
* Arpeggiator (with 4 different modes and MIDI sync)
* 3 types of synthesis: Subtractive (using the built in analogue waveforms), Additive and Wavetable.
* 46 User Memory locations filled with 43 Factory Sounds that are held in Rom and can be overwritten or recalled at any time.
* Many outputs and inputs and further expansion can be obtained using either the rs375 or rs376 expander module."