Author Topic: Boxing up the Loneoceans' midi2 controller  (Read 2474 times)

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1514
  • Karma: +27/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Boxing up the Loneoceans' midi2 controller
« on: August 20, 2017, 09:32:01 PM »
Long ago I bought one of Gao/Loneoceans' midi2 controllers: http://loneoceans.com/labs/sales/midi2/

I finally dug it out from the pile of kits-to-build-when-I-get-time(tm) and found a suitable aluminium box to house it in.

It has two outputs for optical transmitters, so I wanted to put one of each kind in for each channel, so it will have both a blue IF plastic fiber transmitter (IF-E97) as well as the ST Fiber transmitters (OPF1414T). I will make a separate PCB for these 4 to be mounted in the side of the box.

For the front I wanted to make a simple etched PCB for text, markings etc. It was easy and fast to make in ExpressPCB.

So far I got to etch the front and prepare all the potentiometers and switches with wires



http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1514
  • Karma: +27/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Boxing up the Loneoceans' midi2 controller
« Reply #1 on: August 22, 2017, 07:12:15 AM »
All potentiometers, switches and push buttons have been mounted in the lid with front plate on. I had the front plate mounted on the lid with the 6 screws when I did all the holes through both front plate and lid at the same time, to ensure perfect alignment, but I fooled myself. As the lid was not mounted on the box, the 6 lid screws was not in center and I will properly break a few of the corners when mounting the lid, since the screws come in off center :(

If anyone else ever build one of these, be sure to notice that the connection points for PW, Frequency and SW are mirrored (channel 1/2), but the optical output connections are not mirrored, so it is easy to mix up the turn direction of the potentiometers and that midi/fixed switch works opposite.

Next job to be done is making a small PCB for the 4 optical transmitters, a small front plate and drill the holes for those and the MIDI connector in the case.
« Last Edit: August 22, 2017, 08:39:12 AM by Mads Barnkob »
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline futurist

  • Global Moderator
  • High Voltage Technician
  • *****
  • Posts: 149
  • Karma: +3/-0
    • View Profile
Re: Boxing up the Loneoceans' midi2 controller
« Reply #2 on: August 22, 2017, 07:30:04 PM »
Looks quite nice so far! Are you planning to coat PCB to prevent copper oxidation?

I'm also thinking about purchasing his controller, looking forward to see live test

Offline oneKone

  • High Voltage Engineer
  • ****
  • Posts: 315
  • Karma: +8/-0
    • View Profile
Re: Boxing up the Loneoceans' midi2 controller
« Reply #3 on: August 23, 2017, 06:14:29 AM »
That's turning out mint! The front plate looks clean as. I'm looking forward to see the end result

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1514
  • Karma: +27/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Boxing up the Loneoceans' midi2 controller
« Reply #4 on: August 23, 2017, 07:20:53 PM »
I thought about coating it, but the clean copper is just too shiny, so you have to see it at the right angle against the light to read the text, so I will left it oxidise and brown up by itself, I tried baking soda so speed the process, but that did not really give anything, most likely because the baking powder that I had was != baking soda  ::)

I finished up the optical board and plate for that, unfortunately the box was too thick-walled for the two ST Fiber transmitters to hold the plate in place, so it need some bigger holes and two screws.

Then I searched the house for a 9V battery, found none and went to bed. Ill find a 9V battery and will either rig up a small DRSSTC or make a simulator, properly the latter since being very noisy with a DRSSTC after daughter is put to bed is a no-go.
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1514
  • Karma: +27/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Boxing up the Loneoceans' midi2 controller
« Reply #5 on: August 28, 2017, 03:37:05 PM »
I checked out the fixed mode with my oscilloscope and it was dead on 10 - 360 uS on-time for the maximum setting on the SMD potentiometer and also the freqeuncy from 100 to 300 Hz was perfect, nothing to point fingers at there.

I played 4 MIDI tracks and its a little varying on how much on-time is needed to play all the notes, I played mostly 2-4 notes at a time here and I think the on-time was around 100 uS for a 300 kHz coil. The primary coil, IGBT heat sink and secondary coil was warm to the touch after a 1 minute play time :)

Recorded with a 5Dmk3 and a H2n zoom external microphone, no sound clipping!

Ievan Polkka played on Mini Tesla coil - Kaizer DRSSTC II
/>
The Imperial March played on Mini Tesla coil - Kaizer DRSSTC II
/>
Dance of the Sugar Plum Fairy played on Mini Tesla coil - Kaizer DRSSTC II
/>
Scooter - Friends played on Mini Tesla coil - Kaizer DRSSTC II
« Last Edit: August 28, 2017, 06:17:30 PM by Mads Barnkob »
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics
https://www.youtube.com/KaizerPowerElectronicsDk60/join - Please consider supporting the forum, websites and youtube channel!

High Voltage Forum

Re: Boxing up the Loneoceans' midi2 controller
« Reply #5 on: August 28, 2017, 03:37:05 PM »

 


* Recent Topics and Posts

post Re: Polyphonic Interrupter with STM32F103C8T6 (Bluepill)
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Zipdox
Today at 01:27:07 AM
post Re: Polyphonic Interrupter with STM32F103C8T6 (Bluepill)
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
Today at 01:14:46 AM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
flyglas
Today at 12:30:58 AM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
Hydron
September 27, 2020, 11:48:35 PM
post Polyphonic Interrupter with STM32F103C8T6 (Bluepill)
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Zipdox
September 27, 2020, 11:43:14 PM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
flyglas
September 27, 2020, 11:01:13 PM
post type of driver
[Dual Resonant Solid State Tesla coils (DRSSTC)]
octopus1
September 27, 2020, 10:51:03 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
September 27, 2020, 10:44:43 PM
post Re: MIDI videos from my DRSSTC1/2/3 demonstrations/shows
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
September 27, 2020, 09:44:58 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
September 27, 2020, 09:20:32 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
futurist
September 27, 2020, 07:49:49 PM
post Stroboscopic photography & motors
[Digital Compact Camera]
klugesmith
September 27, 2020, 07:08:06 PM
post Re: Led Closeups with Mobile phone and lens .
[Smart Phones]
klugesmith
September 27, 2020, 06:43:46 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
September 27, 2020, 06:42:46 PM
post Re: Finding accelerometer location inside a phone
[Smart Phones]
klugesmith
September 27, 2020, 06:36:41 PM
post Re: steam engine
[Capacitor Banks]
plasma
September 27, 2020, 02:32:14 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
September 27, 2020, 02:02:53 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
futurist
September 27, 2020, 12:24:20 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
September 27, 2020, 12:52:36 AM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
September 26, 2020, 11:06:04 PM
post Re: One NOS ac flyback is nice. Finding its identical twin 3 months later is awesome
[Transformer (Ferrite Core)]
profdc9
September 26, 2020, 10:48:41 PM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
Hydron
September 26, 2020, 05:27:37 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Zipdox
September 26, 2020, 04:32:53 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
September 26, 2020, 04:17:51 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
GKnapp
September 26, 2020, 02:06:04 PM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
flyglas
September 26, 2020, 10:57:58 AM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
September 26, 2020, 08:55:27 AM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
September 26, 2020, 05:19:45 AM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
klugesmith
September 26, 2020, 04:46:12 AM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
September 26, 2020, 01:14:47 AM
post Re: Rogowski current probe
[Laboratories, Equipment and Tools]
flyglas
September 25, 2020, 09:41:10 PM
post Re: DRSSTC Tuning for Music vs Big Sparks?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
September 25, 2020, 08:40:39 PM
post Re: Easy to build Polyphonic MIDI Interrupter
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Mads Barnkob
September 25, 2020, 08:26:52 PM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
SteveN87
September 25, 2020, 06:56:41 PM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
klugesmith
September 25, 2020, 06:15:47 PM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
SteveN87
September 25, 2020, 01:56:27 PM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
TMaxElectronics
September 25, 2020, 11:55:05 AM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Weston
September 25, 2020, 09:18:51 AM
post One NOS ac flyback is nice. Finding its identical twin 3 months later is awesome
[Transformer (Ferrite Core)]
extremeodd
September 25, 2020, 03:43:26 AM
post Re: FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
davekni
September 25, 2020, 03:42:56 AM
post FPGA speeds these days?
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
klugesmith
September 25, 2020, 02:13:40 AM
post Re: Server PSU OPV Hack - Fujitsu DPS-800GB-5 A
[Electronic Circuits]
klugesmith
September 24, 2020, 03:02:00 PM
post Re: Server PSU OPV Hack - Fujitsu DPS-800GB-5 A
[Electronic Circuits]
v.coelho
September 24, 2020, 01:11:27 PM
post Re: Info needed: probably old military High Voltage Multiplier?
[Voltage Multipliers]
Zipdox
September 24, 2020, 10:25:42 AM
post Re: Info needed: probably old military High Voltage Multiplier?
[Voltage Multipliers]
johnnyzoo
September 24, 2020, 07:32:43 AM
post Re: Current transformer for narrow spaces
[Laboratories, Equipment and Tools]
klugesmith
September 23, 2020, 11:20:53 PM
post WTS [US]:"Terry filter" varistors for sale
[Sell / Buy / Trade]
MRMILSTAR
September 23, 2020, 10:41:54 PM
post Re: Info needed: probably old military High Voltage Multiplier?
[Voltage Multipliers]
Zipdox
September 23, 2020, 10:25:07 PM
post Info needed: probably old military High Voltage Multiplier?
[Voltage Multipliers]
HighVoltageRulezz
September 23, 2020, 10:06:30 PM
post Re: Server PSU OPV Hack - Fujitsu DPS-800GB-5 A
[Electronic Circuits]
petespaco
September 23, 2020, 04:26:34 PM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal