Composite vs. Component Video Signals superchromat 2020-08-07 | In this video I explain the difference between composite and component video signals by taking a look at both on the oscilloscope. I'll show you how the sync and color information are encoded in both.I also show a little circuit using an op-amp in an inverting voltage follower configuration and use it to do some high resolution color correction on 1080p component video signals.
Top-hat capacitive loading of VLF antennas superchromat 2024-09-19 | I recently visited the Harold E Holt NWC naval communication station near Exmouth, Western Australia. In this video I talk a bit about what it does and how it works.
ASTIGMAT 30mm f/1.2 Lens superchromat 2024-03-04 | With mere hours of experience in the art and science of optical design, the team at SUPERCHROMAT remain novices in the field. As such, this prime lens, with 6 elements over 4 groups, provides inferior optical performance at a price affordable to few. Regardless of whether it’s a matter of selective focus in the close-up range, high-contrast available light applications or landscape shots with immense depth of field, this lens fails to deliver persuasive arguments in nearly all situations unless stopped down to f/22.2X 200mm biconvex lensesBK7. Uncoated.-700 / 075 X 3 used eyeglass lens 1.67 / Vd 42. Fingerprint coated+30mm aspheric achromatic tripletLAK14/SF57/Aspheric polymer. VIS 0º coated
Container Barn: Finale snippet. superchromat 2023-09-18 | I never ended up finishing the final part of my video series on the container barn. But I did make this part...
D7 superchromat 2023-09-16 | Source code to the music: gist.github.com/i2pi/10f1456fbbd8db701e18291fc15a2c52
Microsoldering tips n tricks superchromat 2023-04-01 | Repairing a Blackmagic Intensity Shuttle, maybe?!
RF Mixer with a CMOS NAND gate superchromat 2023-01-28 | I'm abusing a run of the mill CD4011 NAND gate as a poor RF mixer.
Approaching a flat 1GHz frequency response superchromat 2023-01-15 | Here I'm using an LMH6702 op-amp to achieve a "flat" frequency response out to 1GHz. In this video I compare a few different layouts and explore the impact of parasitics on frequency response for a high bandwidth video amplifier circuit.
spooky parasitics! superchromat 2022-10-31 | Trying a new circuit with an op amp, that on paper, looks too good to be true. Sometimes, wired reality is weird.
USA v. China: RF Connector Quality superchromat 2022-09-20 | In this video I'm comparing the quality of name brand $50 DIN 1.0/2.3 connectors (Amphenol & Tyco) versus the equivalent connectors purchased from Alibaba at ~$6. You get what you pay for!
Analog HD Video Connector Shoot Out superchromat 2022-08-20 | I'm searching for the perfect connector for my modular analog HD video synthesizer. In this video I compare 5 connectors across 6 dimensions. I compare BNC, HD-BNC, DIN 1.0/2.3, SMB and RCA connectors. I'm looking at analog bandwidth / impedance, dimensions, mounting options, durability, engagement force and cost. Which one will win!?
Using an OPA-615 for HD video DC restoration superchromat 2022-07-25 | Going through how to use the 700MHz operational transconductance amplifier and sample & hold circuit inside an OPA615 to perform accurate DC restoration / clamping of HD analog video signals.
Five amazing HD analog video ICs superchromat 2022-07-24 | Let's take a tour of the:LMH1980 Sync Separator74LV4046 High(ish) speed Phased Locked Loop (PLL)OPA615 DC Restoration / Sample&Hold / Operational Transconductance Amplifier (OTA)AD8036/8037 High speed op amp with inbuilt high/low clamping
Teardown & Repair(?) of a Blackmagic Intensity Shuttle superchromat 2022-06-25 | A few years back I fried the component output of my Blackmagic Intensity Shuttle video input/output device. I finally decided to bite the bullet and tear into it to see if I can fix it. It's now your turn to see if I could fix it!
Chroma key, but analog, but HD superchromat 2022-06-18 | I built a relatively straightforward analog circuit to implement a high quality chroma key filter on HD/1080p component video.The circuit uses OPA 3692 video op amps, MAX 9012 high frequency comparators and an FSAV 430 video switcher. And despite the bodges, it maintains an analog bandwidth of just over 200MHz, and has no noticeable visual artifacts.
Analog Color Correction pt2 superchromat 2021-06-03 | First impressions noodling around with the circuit I presented in the last video. Looking forward to getting more familiar with the unit and putting it through its paces in the next video!
Analog Color Correction pt1 superchromat 2021-05-09 | I walk through the implementation of an analog circuit that performs curve editing on HD analog video signals using op-amps and transistors to allow adjustment of contrast, black and white levels, and tweakable s-curves.
Superchromat says g’day superchromat 2021-04-28 | It’s been a few months since my last video. But that doesn’t mean I’ve been lazy. We’ve moved across the world and I’ve managed to squeeze in some time to work more on my HD analog video processing gear. I’ve also started collaborating with one of my viewers to take the project to the next level by exploring an FPGA based system for operating on 4K video in the analog domain.
Top 10 Machining F* Ups superchromat 2020-11-12 | It all started with a mission to make a camera lens. That led to an unexpected CNC conversion of a Harbor Freight lathe. In this video I share my journey so far, and my plans to upgrade my Precision Matthews PM25MV Mill, and possibly my new lathe to CNC using ballscrews and clearpath servo motors. And I probably made at least 10 mistakes along the way :)Music by Sense / Adam Raisbeck. http://senseaudio.bandcamp.com
SwissMicros DM42 Review superchromat 2020-10-19 | I love my HP-42S calculator. Someone recommended that I check out the SwissMicros DM42 clone. In this video I share my first impressions. So far, I like it, but don't love it. It is a faithful reproduction of the original, with significant improvements with a larger display, the ability to save via USB, and a better processor. However, by being a faithful reproduction, it doesn't make the best use of those upgrades. Additionally, the overall fit, finish and feel of the device is a little lacking. Not enough for it to keep me from using it as my daily driver, but not enough to replace the original 42S in my heart.
Wildfire update + Shop Tour superchromat 2020-09-22 | We were really lucky and the wind changed 4 hours before we would have lost our farm to the Oregon wildfires. In this video I give a quick update on the fire situation and finally get around to giving y'all a tour of my messy incomplete shop. I walk you though my electronics and video lab, machining area with mill & lathes, my fabrication and welding area, and my future woodworking space.
$30 vs $150 HDMI to Analog converter review & tear down superchromat 2020-08-23 | I compare a cheap $30 HDMI to component analog converter from Amazon with a high quality SDI to Analog converter from Blackmagic Design. Unsurprisingly, you get what you pay for. I wasted weeks trying to find a decent unit on Amazon, but it turns out there are hundreds of variants of the cheap unit and they all are pretty janky when it comes to quality and signal integrity. I pull out the oscilloscope and compare their outputs and do a quick overview of the PCB circuit design.
color superchromat 2020-08-13 | Taking a break from electronics to make a 20 minute video about color. What even is color? What does Erwin Schrodinger have to do with color theory? I'm not sure, but I do have the ability to yap on about it for a while. John Austin's StrangeLoop talk: youtube.com/watch?v=AS1OHMW873s
chromakey superchromat 2020-08-10 | Adding a quick little circuit to the video synth to do some chroma keying. This circuit uses four op-amps as comparators to select a particular color to generate a key signal.Music: Blue Shade 1 by Sense /Adam Raisbeck - senseaudio.bandcamp.com
Introducing the video synth project superchromat 2020-08-06 | I've been working on building an analog hd video synth / effects unit. The machine takes in 1080p24 via component video, and 5 channels of audio. It uses some PIC microcontrollers to separate out the luma and sync, and to generate pixel clocks. In this video I share a quick little circuit using a BC548 NPN transistor to modulate the luminance of the video using line level audio.
JMKF superchromat 2020-06-23 | J🖤KMusic: Elysian Fields (Nina Buchanan Rework) by Luke Howard. music.lukehoward.com
3 Axis CNC Camera Motion Rig #tmc2020 superchromat 2020-06-10 | In this video, I wrap up this project by compiling the last two videos and adding on a Raspberry PI for CNC control. I've decided to enter this project into Emma's Spareroom Machine Shop 2020 Tool Making Competition. #tmc2020I may be stretching the intent of the competition, but after watching from the sidelines, I've decided to join in. I've learned a ton from the youtube/instagram machinist community and I'm happy to contribute as a way of participating and giving back.All music by Adam Raisbeck / Sense senseaudio.bandcamp.com
3 Axis Camera Motion Rig - CNC? superchromat 2020-06-06 | Following on from my last video, where I adapted a linear rail system to drive my new camera, I decided to build some rotary axes for this system. In this video I start off with machining / fabricating a pan axis, followed by tilt. Along the way, I repair the broken power feed on my Precision Matthews lathe.I wrap up with a question -- should I CNC this, or drive it with discrete electronics?Music by Sense: senseaudio.bandcamp.com
Hacking together a camera motion system superchromat 2020-05-21 | A while back I bought a precision linear actuator system. I decided to hack one of them into a linear rail for a camera motion system. In this video I replace the servo with a stepper, which required some minor machining. In the next video, I'll build out the electronics and a rotary stage.Music by Sense: senseaudio.bandcamp.com
Container Barn: Roof Framing superchromat 2020-05-08 | In this video is start framing up the trusses to support the roof on the shipping container barn. I detour a bit into why I'm upset with my cordless Makita brushed circular saw, parametric design and stress analysis with Fusion 360, and why I like screwing so much.
Container Barn: Reclaimed wood & steel container barn doors superchromat 2020-04-25 | In this episode, I fabricate some reclaimed barn wood and steel doors for the shipping container barn project. This is a great project to introduce my ProLine 14,000 precision welding table. It's a joy every time I get to use it! We also include some useful tips about a hidden mode in Everlast PowerPro TIG welders that will help beginning welders get more life out of their tungsten.End music: Courage by Sense / Adam Raisbeckhttp://senseaudio.bandcamp.com
Container Barn: Cutting & Moving superchromat 2020-04-20 | We decided to cut a 40' shipping container in half and move it into a pasture with the intention of turning it into a small additional barn. In this video I go through the process of reinforcing the structural elements, cutting the container with a combination of plasma and demo saw, and finally moving the container in place with a mini excavator.Music from the album Relief, by Sense / Adam Raisbeckhttp://senseaudio.bandcamp.com
Establishing a new fence line superchromat 2020-04-07 | I spent the last few days on the tractor and mini-excavator clearing a path in the brush and forest for a new fence line. This will make a new pasture for our animals.
Repairing our woodchipper superchromat 2020-03-21 | Our YardMax YW7565 woodchipper was blown over in a storm and stopped working. I brought it down to my workshop and found that the belt tensioning lever wasn't functioning. After a minor detour into bistable mechanisms, I decided to do a janky fix by welding on a plate. It seems to be working great now.
The Mystery of the Thirsty Cows superchromat 2020-03-16 | In the continuing saga of running our irrigation pump, I found that some PVC froze and needed to be replaced. Three times. And along the way we dive into a buggy circuit breaker. While the cows do get a drink, we are left pondering the question -- Will the cows go thirsty again??!
Shop Build 019: Wall Surfaces superchromat 2020-02-28 | It's been a while since the last update, but that doesn't mean work has stopped. I've completed the bathroom, and built out an office space. In this episode, I start putting up the plywood for the walls and realize, not fast enough, that if it looks straight, it is straight.
Modern Necklace - Wooden Box superchromat 2020-02-22 | In this final video of the series, I use the time in between epoxy pours to make a little box for the necklace. I used a piece of maple that I had laying around and fashioned the box using my milling machine. Most of the time was spent getting the lettering on the box. For that, I used my Shaper Origin. It took a fair amount of futzing around to get the SVG file just right, but I'm happy with the results.I really should get some more woodworking tools. A table saw is next on my list!
Modern Necklace - Epoxy & Polish superchromat 2020-02-20 | In the second part of this series, I share how I went about layering the epoxy in the center of the pendant with the moss and fern leaves. I also cover my approach to bringing a mirror finish to the brass, aluminum, and steel.
