Showing posts with label LA67. Show all posts
Showing posts with label LA67. Show all posts
Sunday, July 30, 2023
Replica Buchla 100 series modular synth: LA67 Mort’s Barge
video upload by Tom Churchill
"This video is about Mort’s Barge - a replica mini-system of five Buchla 100 series modules that were used by electronic music pioneer Morton Subotnick in the mid-1960s. I recently built the 4U DIY modules from LA67, and in this video I walk through the features and create a few patches that show what they’re capable of.
My build notes are here:
https://www.modwiggler.com/forum/view...
Find out more about the Mort’s Barge DIY set on the LA67 website:
https://www.lasesentaysiete.com/mort-..."
You can find additional posts featuring Mort's Barge here.
Notes and pics via Tom Churchill's post on Mod Wiggler:
"I thought I’d share a couple of things I learned along the way which maybe aren’t immediately obvious from the BOMs alone, in case anyone else is planning to tackle the build and is looking for some tips.
Some of this stuff has no doubt been covered earlier in the thread, so apologies for any repetition. Also, a lot will probably be obvious to experienced builders, but I’m definitely not in that category yet, so for anyone else (like me) who’s only built Eurorack kits previously, maybe isn’t super-familiar with circuit theory and component sourcing, it might be useful.
Enclosure:
After I ordered the panels and PCBs from LA67 I contacted Julian at The Beast to ask about his 6U Buchla boats. As luck would have it he still had a couple of the special boats he supplied to LA67 for the pre-built Mort’s Barge systems, with matt black coating and pre-drilled holes for power inlet, power switch and grounding banana socket, so I snagged one.
I added some rubber feet to allow a bit of clearance for the screws I used to mount the PSU PCB (see below) and to avoid the underside getting scratched.
For mounting the modules, I bought a pack of 20 M3 speed fasteners (aka captive nuts, aka Tinnermans) from eBay, and secured the modules using M3 6mm screws with plastic washers.
Power:
The PSU PCB doesn’t require any caps and you just need to solder one bridge as marked. (This is now clear on the Mort’s Barge PSU BOM, but it wasn’t at first.)
I mounted the PSU PCB on 8mm M2.5 standoffs via the pre-drilled holes in the bottom of the boat.
I added a 2.1.mm DC inlet and wired a 20mm round rocker switch in series.
I added a single banana socket connected to 0V to provide a ground for any other cases I might want to use with it (and for connecting to Eurorack - see below).
For the AC-DC converter I just used a standard 12V 2A wall wart I had lying around, with a 2.1mm centre positive barrel connector.
I used the 2-pin Molex connectors as per the BOM to distribute power to the individual modules (with the power cables hard-wired to the individual module PCBs)
Component sourcing:
I combined the individual BOMs for the five modules into one master BOM, ticked off what I already had in stock (mostly resistors), then ordered any other required resistors, trimmers, pots, 2N3904/6 transistors and various bits of hardware from Tayda; caps, specialist transistors, diodes, switches, knobs, lamps etc from Mouser.
I’m in the UK and banana sockets worked out slightly cheaper from Thonk, so I ordered those there. I also bought the necessary matched transistor pairs from Thonk to save time (I don’t have the tools or experience to match them myself!)
Changes:
This might be sacrilege to Buchla purists but I went for Switchcraft 3.5mm sockets instead of Tini-Jax - I already have lots of 3.5mm patch cables and it makes for easier integration.
The 910p film caps on the BOM are huge - 10mm lead spacing - and expensive. I ordered them before I realised this, and with a bit of leg straightening/bending they do fit fine in the 158 and 180 boards, but I replaced them with these much smaller and cheaper 1n mylar film caps for the 140 - https://www.switchelectronics.co.uk/1nf ... apacitor-5 - and they work just fine.
The BOM has since been corrected, but slightly annoyingly at the time I was ordering, the part code for the Dialight lamps in the 123 was out of date, so the ones that arrived in my original order were the wrong size. I had to do a separate order for the correct parts, 609-1122-130F. These aren’t cheap, so double check that you’re getting 9mm ones!
On the 158 BOM, there’s a suggestion to use 1n5 instead of 47n for C11 to reduce saw wave distortion. I put sockets in for that and tried both - the 1n5 definitely gives a much cleaner saw so I’ve stuck with that. I also left out C8 as suggested to improve sine shape - I didn’t try it with it included but the sine is definitely a good shape without so I’ll stick without it.
General tips:
I built them in the left to right order they’re shown on the LA67 photos - 158, 110, 180, 140, 123. It was pretty easy to test this way.
Calibration-wise there’s not much to do - the trimmers on the 158 adjust the sine shape and upper and lower frequency limits; use the 110 trimmers to minimise clicking with a raw trigger in; the 140 trimmers set the upper and lower period (I haven’t really touched these)
For the wiring, I soldered pins to the PCB and used a bunch of F-F Dupont jumper wires, cut in half, so if I ever need to take the board off I can simply pull these off and don’t need to desolder anything. For the multiple outputs I mostly just used old resistor legs to bridge them.
Integrating with Eurorack clock is easy - both the 180 and the 123 respond to triggers as low as 5V (e.g. from Pam’s). I don’t use a format jumbler, just a 3.5mm to two bananas cable, with the ground banana connected to the spare ground I fitted near the power switch. I don’t think I’ll ever bother trying to send CV from Eurorack but this way I can at least clock it to the rest of my system if I want to, and maybe even play around with some more complex rhythm patterns.
Anyway, hope that’s handy for someone - I’ll share a bunch of patches on YouTube soon!"
Monday, May 08, 2023
Buchla LA67 model 100 Clone 2020 - White
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"Nice LA67 Clone of the Buchla 100 series all Pcbs OG LA67 built with mouser components/ switchcraft/ davies cloned knobs. Working great fun synth
Here is what is included:
power supply wallwarts for both cases, briefcase with lid can be taken off.
1- Model 130 Envelope Detector
1- Model 140 Timing Pulse Generator
1- Model 165 Random voltage source
1- Model 180 Dual Attack Generator
1- Model 171 Dual Instrument Preamplifier
1- Model 144 Dual square wave generator
1- Model 158 dual sine sawtooth generator
1- Model 192 dual lowpass filter
1-Model 116 Keyboard"
via this auction
"Nice LA67 Clone of the Buchla 100 series all Pcbs OG LA67 built with mouser components/ switchcraft/ davies cloned knobs. Working great fun synth
Here is what is included:
power supply wallwarts for both cases, briefcase with lid can be taken off.
1- Model 130 Envelope Detector
1- Model 140 Timing Pulse Generator
1- Model 165 Random voltage source
1- Model 180 Dual Attack Generator
1- Model 171 Dual Instrument Preamplifier
1- Model 144 Dual square wave generator
1- Model 158 dual sine sawtooth generator
1- Model 192 dual lowpass filter
1-Model 116 Keyboard"
Monday, January 02, 2023
LA67 Mort's Barge - Buchla 100 Module Clone System
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
You can find a demo and additional details on LA67 Mort's Barge previously posted here.
via this auction
You can find a demo and additional details on LA67 Mort's Barge previously posted here.
Saturday, September 17, 2022
LA 67 Mort's Barge (Buchla 100 Clone)
Note: Auction links are affiliate links for which the site may be compensated.
via this auction
"LA 67 Mort's Barge - Buchla series 100 clone in perfect condition.
As new.
With original box and 6 tiny-jax cables."
via this auction
"LA 67 Mort's Barge - Buchla series 100 clone in perfect condition.
As new.
With original box and 6 tiny-jax cables."
Tuesday, July 26, 2022
MACA filter by LA67 - Demo and Build
video upload by Synth Diy Guy
"Checking out this cool easy to build filter kit! Just classic rubbery goodness on a compact but complete interface.
More info here: https://www.lasesentaysiete.com/maca-...
My Website: https://www.quincasmoreira.com/ Patreon: https://www.patreon.com/quincas
Index
00:00 Demo
12:04 Build"
A 4-pole multimode filter based on the SSI2140 integrated circuit. Essentially an updated version of the classic SSM2040, the new SSI2140 adds better temperature compensation and a VCA that helps eliminate low frequency damping at high resonance settings. Besides the obligatory 4-pole low pass, MACA adds both 2-pole low pass and 4-pole band pass outputs. There is also a input level control that allows you to easily overdrive the filter core.
Features
• 4-pole LP, 2-pole LP, & 4-pole BP outputs
• Input level control
• 16hz-16khz range
• "Q" CV input
• Inverting attenuator on "FM" input
• "V/oct" CV input
• Sine wave oscillator at high "Q" settings
Thursday, July 21, 2022
T-Zed Oscillator by La 67 - Demo and Build!
video upload by Synth Diy Guy
"Super easy kit (SMD pre soldered)
for a VERY cool and fun analog VCO with unique features.
My Website: https://www.quincasmoreira.com/ My Patreon: https://www.patreon.com/quincas
Index:
Demo 00:00
Build 16:29
Calibration 20:16
Stay Noisy!"
Monday, July 11, 2022
Wayback Machine to 1965
Wayback Machine to 1965video upload by X180R19
"#la67 #la_sesenta_y_siete Buchla 100 clone 'Mort's Barge'. I'd just acquired this boat and instantly took me back to the first time I heard a Buchla synth."
You might remember "Mort's Barge" from this post back in January.
Additional details via LA67
"Mort's Barge is a 5 module, 6U 100 Series mini-system. It is based on a classic configuration of modules made famous by composer/musician Morton Subotnick. The system contains:
• Dual Sine-Sawtooth Generator Model 158
• Dual Voltage Controlled Gate Model 110
• Dual Attack Generator Model 180
• Timing Pulse Generator Model 140
• Sequential Voltage Source Model 123
The modules are housed in a powered black boat (external transformer is provided for EU customers only). Customers outside of the EU must procure their own transformer (model SGA12E12-P1J).
Non-EU customers use promo code "nonEU" to remove the price of the transformer (15€) at checkout.
**Due to longer processing times on certain components, delivery is scheduled for the second half of September 2022.**"
1850€ (ex. VAT)
Sunday, June 05, 2022
Thursday, May 19, 2022
La 67 presenta Dada y MODii, nuevos módulos Eurorack
video upload by Hispasonic
"Cerramos el capítulo hispano de la Superbooth con La 67, marca también con sede en Barcelona. Su responsable, Daniel Authier, nos presenta los dos nuevos módulos Eurorack que presentaron en la feria: Dada, un saturador y amplificador VC dual, y MODii, una envolvente doble.
Más sobre La 67: http://lasesentaysiete.com"
Googlish:
"We close the Hispanic chapter of the Superbooth with La 67, a brand also based in Barcelona. Its manager, Daniel Authier, introduces us to the two new Eurorack modules that they presented at the fair: Dada, a dual VC saturator and amplifier, and MODii, a double envelope.
More about La 67: http://lasesentaysiete.com"
Thursday, January 27, 2022
The Sands of Time | Hallucinogen
video upload by CAMPVS MARTIVS
"Imagine being out in the middle of the desert near the ancient city of UR in Mesopotamia back 5,000 years ago. That's what the theme of this piece is all about. Recorded on 4 tracks using the LA67 Mort's Barge a Electro-Harmonix 45000 and the beautiful echoes of the Meris Polymoon and some reverb."
"A visual study of the Moche Culture of northern Peru. Created in one take using Mort's Barge System by LA67 and a dash of the KOMA Elektronik Field Kit FX. It is a known fact that the Moche culture like many others used hallucinogens to aid in their rituals and religious rites. This is the central theme of this electronic piece."
Monday, September 07, 2020
WFM oscillator -LA67 & Rebach VCO-A,VCF-A,ADSR-A
Dziam Bass
"Hello all.
today I patched WFM oscillator from LA67 and Rebach VCO-A, VCF-A ADSR. I added a traingle wave to FM IN in WFM and pulse waves from WFM to PWM IN in VCO rebach.
as you can see nice nice analog sound when i open more and close the filter.
This is a nice combination for me because the WFM is based on the old 1970 KOBOL oscillator and the rebate VCO based on the AS3340 so it gives a great character,
I tried to subtly add FM and open the filter for a musically working sound."
Wednesday, June 24, 2020
Drums with WFM oscillator and Decay-VCA like Punch and Hatz from Patching Panda
Dziam Bass
"Hi everyone.
Some time ago I recorded this one small movie why I like triggers like Four Bricks Rook from Shakmat Modular , WFM oscillator from La 67 and modules from Patching Panda like Punch and Hatz for my drums.
Kick based on VCO WFM plus trigger by Four Bricks Rook - a great module for me because you can record your own rhythms with your hand, Punch to the ultimate VCA-DECAY so it is great for kick when I shorten and send out my sound from the oscillator and Hatz as the name says it is a hihats sound module.
open and closed hat in one module. as you can see, some fun with freq and decay to show what colors this hat offers.
WFM is an oscillator based on the old Kobol synth from 1970 so its character is also cool.
Have a nice day and thanks for watching . ;-)"
Wednesday, April 08, 2020
LA67 WFM Oscillator // Analogue 'Kobol' style waveshaping VCO in Eurorack with FM, AM & more
Published on Apr 8, 2020 DivKidVideo
*Here's the new WFM Oscillator from LA67. It's a 8HP Eurorack oscillator that offers multiple dimensions of sound shaping and control. There's the standard triangle and square outs and then a unique 'WFM' section. That offers level control (CV modulation or audio rate for AM synthesis) as well as RSF Kobol style wave shaping and also pulse width modulation. There's the standard FM (exp/lin), sync and 1v/oct controls too. As always this video is about demonstrating the raw sounds and features with musical example and patch tips that can help us all push our synthesis and sound design further.
TIMING INDEX // SECTIONS
00:00 Hello and video previews
01:25 Feature run down
02:43 Kobol style waveform morphing
03:03 AM synthesis demo
05:34 Melodic AM ideas
07:12 Random “modulate everything” AM
07:23 PWM pulse width modulation demo
09:07 Dynamic and musical audio rate PWM
10:39 Rich PWM bass
11:40 Turning the WFM into an LFO
13:20 FM synthesis demo
14:47 Percussive FM patch
15:24 Additional FM patch
16:26 Audio rate wave shaping and “complex oscillator” patching
18:20 This was begging for a beat
18:51 Ambient fading wave shapes
19:42 Sync demo & more dynamic level control"
LABELS/MORE:
eurorack,
LA67,
New,
New in 2020,
New Modules,
New Modules in 2020,
News,
synth tutorials
NEXT PAGE
HOME
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH