TTMC Dual Sine Saw Card Part 2

Published on Mar 23, 2020 Todd Barton

"Continuing my basic overview and demo of the upcoming Dual Sine-Saw Generator 158 Card for the Buchla Music Easel from http://tokyo-tape-music-center.xyz More demos and tutorials to follow. And here is the link to the tiny mixer used in the video: https://www.portabellabz.be/tinymixer..."

Todd Barton TTMC posts

Portabellabz Synthi Card Modulation fun

Published on Feb 7, 2019 Todd Barton

"4th installment of exploring the Portabellabz Synthi Card for the Buchla Music Easel by http://www.portabellabz.be Be sure to checkout these audio files for best sound http://www.portabellabz.be/SYNTHI_Car... Great to have this onboard.! Wonderful sounds and timbres."

Todd Barton Portabellabz Synthi Card videos

Portabellabz Synthi Card for Buchla 208

Published on Feb 4, 2019 Todd Barton

"The new EMS Synthi (licensed) Card by http://www.portabellabz.be
be sure to checkout these audio files for best sound http://www.portabellabz.be/SYNTHI_Car...
Great to have this onboard.! Wonderful sounds and timbres. I will be making more videos -- hope you enjoy this teaser."

And via Brian Comnes, spotted on Muffs:

"I'm happy to announce the release of a new Portbellabz card for Music Easel and 208 under EMS Cornwall license.

This card expands the Music Easel or 208 with original EMS Synthi A and VCS3 circuits : an oscillator that produces simultaneous square and triangle waveshapes with wide range and features useful modifications (synchronization, shape CV, hi/lo range) and a noise generator with variable colour, together with my acclaimed Random Voltage Generator modification module that expands many original EMS Synthi A, AKS and VCS3, unlike the 208's one, it's true random.
The inputs and outputs voltages are adapted to match the ones used in the 208.


It will be available in late February / early March, pre-built (€460 + shipping, Rogans and rear edge connector in option) or as a DIY PCB set (€130 shipped) like the 208 ToolBox.

The prices include a commission for Robin Wood at EMS, that is the same for each pre-built unit or PCB set sold.

It works with 208p, 208r (not rev1) and BEMI / Buchla USA Easels. The tracking can be set to 1V/oct, 1.2V/oct or 2V/oct (or other, but who wants that ? :lol: ).

A very few privileged persons were lucky enough to already test a prototype and enjoyed it. Thanks to them for keeping the secret.

Hopefully a demo video of the great Todd Barton should pop up soon, thanks in advance Todd.

In the meantime, here are some (very basic) demo of the card with my own 208.
All sounds are coming from the card except the CO modulation track (208's CO modulated by the card). A 218r was used to demonstrate tracking. It's a bit high in the lowest notes but this is fixed.

http://www.portabellabz.be/SYNTHI_Card_demos_mp3.zip

[b]Oscillator[/b]
- 100% analogue discrete components
- square and triangle outputs, blue bananas are full range outputs for modulation, red knobs are outputs to the mixer
- wide range from very slow LFO to ultrasonic, switchable hi/lo range with fine tuning
- tracking good on about 5 octaves via the 208's keyboard CV in
- variable frequency CV input with attenuverter via black banana
- variable shape CV input with attenuator via black banana
- variable sync input with attenuator via black banana

[b]Noise[/b]
- 100% analogue discrete components
- white banana is full range output for modulation
- red knob is output to the mixer
- variable colour

[b]Mixer[/b]
- tinijax out to feed the 208's preamp
- banana out for mixed modulation

[b]Random voltage generator[/b]
- available on the white banana - a mini slide switch behind the panel selects noise or random, this affects the white banana only, the noise is still available in the mixer when random is used
- clock input via the 208's inverter "to card" socket
- noise colour changes the random voltage

Bill Sequeira kindly did this nice overview. Thank you Bill.
The pictured card is a prototype, the production one will look very similar.

[img]http://www.portabellabz.be/images/PortabellabzSynthiCard.jpeg[/img]

Thanks for your interest and more soon."

Portabellabz Buchla Easel Hub V

Published on Jul 13, 2018 Todd Barton

"Spinning on a dime . . ."

You can find previous Portabellabz Buchla videos by Todd Barton here.

Portabellabz Buchla Easel Hub IV

Published on Jul 12, 2018 Todd Barton

"Using the ipgrogram card in 'both' mode to get more control among Toolbox and Aux Card"

Portabellabz Buchla Easel Hub III

Published on Jul 5, 2018 Todd Barton

"Continuing my explorations of the Portabellabz Buchla Music Easel Hub. This time with a very simple patch from scratch to try and demystify what I've been doing :-) Enjoy!"

Portabellabz Buchla Easel videos by Todd Barton

Portabellabz Buchla Easel Hub II

Published on Jun 30, 2018 Todd Barton

"Continued explorations with the Portabellabz Easel Hub. This is a bit more intense than my last one. It is amazing how many layers are available with 3 cards in play. Enjoy the amazingly different evolving timbres half way through."

Part 1 here.

Portabellabz Buchla Easel Hub

Published on Jun 27, 2018 Todd Barton

"beginning to go down the wonderful rabbit hole provided by the Portabellabz Buchla Music Easel Hub which allows there cards to be powered and "in play" simultaneously. New worlds to explore."

Buchla Easel with cOC and ToolBox

Published on Jan 15, 2018 Todd Barton

"exploring the Northern Light Modular cOC with the Portabellabz Toolbox. Krellish type patch transforming to rhythmic patch and back again."

Buchla Easel Suite

Published on Dec 18, 2017 Todd Barton

"A collection of brief experiments with the Easel and Portabellabz' Toolbox/BOB."

Buchla Easel Bobbing Along

Published on May 31, 2017 Todd Barton

"using the Portabellabz' BOB's EG Trigger Output to drive the Sequencer and the Sequencer stages to change the speed of the Pulser."

208 ToolBox 10 CV Switching

Published on May 22, 2017 Todd Barton

"continuing exploration of Portabellabz' ToolBox and, this time, the BOB (Break Out Box) for the Buchla Music Easel"

All parts here.

208 ToolBox 09 Figure 21

Published on May 18, 2017 Todd Barton

"Continuing explorations of the Portabellabz' ToolBox card for the Buchla Music Easel. This time looking at the Allen Strange patch Figure 21 from his Easel Manual replicated using the Toolbox"

All parts here.

208 ToolBox Overview Videos by Todd Barton

Published on Mar 18, 2017 Todd Barton

"A new third-party offering to the Buchla paradigm: Portabellabz' 208 Toolbox for the Buchla Music Easel. Here's an overview."

Playlist:
208 ToolBox 01 Overview
208 ToolBox 02 CV EG Patches
208 Toolbox 03 SVS Random Patches
208 ToolBox 04 With 208r
208 Toolbox 05 Viewer's Patch
208 Toolbox 06 Oscillator
208 ToolBox 07 More Patches
208 ToolBox 08 External Random
208 ToolBox 09 Figure 21
208 ToolBox 10 CV Switching