"Mail me at rklinkenberg(at)gmail(dot)com for more info on the card"
"Aaux card for the Buchla 208 / Music easel.
It's a 16 step envelope trigger module which offers drum computer like step input for two different Envelope outputs.
Here a brief description:
- 16 three way switches, up selects output 1, down selects output 2
- Output is a simple envelope with only decay with a potentiometer and a CV input
- Length can be set to 16 steps or 8 steps, in which case it's basically a dual 8 step envelope trigger
- Sync input for syncing the Buchla 208 pulser to an external sync source
All in all a very straight forward card to use, but still a very complex card to build consisting of a 4 layer PCB behind de frontpanel, a 2 layer main pcb and a backpanel, sandwiched together. The 4 layer pcb and the 2 layer main pcb are connected via a total of 28 pins divided over 6 connectors."
"Mail me at rklinkenberg(at)gmail(dot)com for more info on the card."
"Card is back in stock and I made some small improvements:
- New PCB layout, easier to assemble.
- Trimmers for the 1,2V/oct adjustment (portamento) are reachable from the side. No need to take of the frontpanel anymore.
- Sequencer can be triggered by the LFO. This was already possible on the old card by moving a jumper. But now it's a switch position on the frontpanel.
- Envelope generator can be triggered by the LFO.
- Sync input Sync the 208's pulser to an external sync source
- Limited Purple edition ;-)
EDIT: everyone who's interested can email me at rklinkenberg(at)gmail(dot)com stating Buchla Aux Card in the description.
Price for a pre build unit is 400 euro ex vat(if applicable)
Here a description of the functions of the card.This is the new card (4 layer pcb with mostly SMD components)
- 8-step sequencer, clocked by either the pulser or the 208 sequencer’s switches. A switch for selecting 1 alternative step length (for example 7 step)
- LFO, 0.02Hz into audio range, with frequency CV input
- Portamento, on the CO or on both the CO and the MO.
- Envelope generator with ADSR, looped, and LFO modes, plus level control and decay time CV in
- And then some....see manual."
"Hand-Built Buchla Easel by Constantin (Portabellabz)
This setup was meticulously hand-built by Constantin at Portabellabz, with all components in perfect working order.
Price: $8,000 USD (equal to my original investment). I’m open to reasonable offers. Location: Portland, OR. Local transactions are preferred, but I’m willing to ship if necessary.
Feel free to ask any questions—I’ll do my best to provide detailed answers.
Modifications and Features
208p Module (with Blue PCBs)
Flat red LEDs Tinijax connectors 1.2V/oct input On-off-on switch for CO CV Reverb mix CV input (replacing the rightmost pressure socket with a black banana socket) Dedicated LPG outputs (replacing panel signal out tinijax sockets) Infinite sustain functionality Noise generator (similar to the 208c; accessible via LPG2 when the routing switch is in the top position and the preamp is unpatched) Enclosure Features
Portabellabz ToolBox: Includes slew limiter Roland Klinkenberg Sequencer Aux Expander: Includes Mod Expander Custom Hard Case: Custom made by Road Cases USA Rare SAmodular Keyboard and Case
The 218 keyboard and case are from SAmodular, with specific modifications by Constantin to ensure peak functionality. Note that the keyboard is no longer in production, making this setup particularly unique and valuable.
This is a beautifully customized Buchla Easel, built and modified by one of the most respected names in the field. Don't miss this opportunity to own a one-of-a-kind instrument."
"Mail me at rklinkenberg(at)gmail(dot)com for more info on the card.
Patch: CO & MO pitch modulated by Card sequencer with some portamento. CO amplitude modulated by Card Envelope generator, card Envelope Generator level by 208 sequencer MO Amplitude modulated by 208 Envelope Generator CO Waveshape knob modulated by Card LFO."
"It's a 2 bar version of this loop by Kraftwerk which is originally 4 bars long. The envelope level is linked to the sequencer output so the higher notes get more envelope effect.
The card used is the Sequencer Aux Expander card.
Mail me at rklinkenberg(at)gmail(dot)com for more info on the card."
"Prototype phase, audio cuts out along the way but you get the idea. Kinda adds to the prototype feel...
Without getting specific, this will turn the 208 into a 2 channel drum machine kinda...but things might change 🙂"
"Buchla 208, Triple Sequential Voltage Source expander card, Roland TR-08 and a delay pedal.
Patch description:
Top sequencer - CO pitch
Mid sequencer - MO pitch
Bottom sequencer - MO waveform switch
Random Voltage Source - Decay time
Korg SQ1 serves as a 218 substitute and is used to modulate the basic pitch of both MO and CO."
Buchla rhythm - Buchla 208 / Buchla Easel Aux Card
"My new card, the Triple Sequential Voltage Source. I wanted to make something similar to the Buchla system 100 model 123.
It's basically three 8 step sequencers with variable step length and slew.
Step length control can be linked (like on the model 123) and un-linked (each sequencer can have a different length setting).
Price will be 460 euro ext VAT (if applicable). For more info and availability, mail me at rklinkenberg(at) gmail(dot) com stating 'Triple Sequential Voltage Source' in the description."
And a video from Todd Barton:
"Signal routing switch is modulated by the 208 5 step sequencer via the Mod Expander Card.
What you hear is an alternation between the MOD oscillator, the Complex oscillator & a noise source...
For more info and availability, mail me at rklinkenberg(at) gmail(dot) com stating 'Mod Expander Card' in the description."
