New Models at Maker Faire Tokyo!

The rainy season is officially over, and the long heat of summer has taken command. But here at Oscilloclock.com, we plan to sweat it out in air-conditioned comfort at…

Maker Faire Tokyo 2015!

Visit our booth and check out several new models! First up is the fabulous 2015 edition Oscilloblock. One unit will go on sale at the event!

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3.3V to 5V Level Adjustment

Only just after I’d written last month’s post about an X-Y-Z display for an HUD, the customer asked for a spot of extra help with his new playtoy.

Uh oh - image not centred and way too big...

Uh oh – image not centred and way too big…

The Oscilloclock Deflection Board currently assumes X and Y input ranges of 0-5V, centred on 2.5V. However, the customer was programming an Arduino-based controller board with analogue output from 0-3.3V. Applying this directly of course didn’t break anything, but sure did make it hard to centre on screen! Would there be a quick way to adjust voltage levels?

Another issue was that the gain in the current-revision Deflection Board is hard-wired, and the image was not the right scale to just fit the screen. The gain could be changed via a single resistor per channel, but would there be an easier, more flexible way?

YES on both accounts!

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Heads Up!!

Recently I received a most intriguing request: I was asked to build a self-contained, super-bright X-Y display unit with 3-inch CRT, for use in an “HUD“. Hmm…

Holographic Utterance Device?
Horizontally Unstable Doohickie?

Fortunately, I didn’t need to guess any further. As I was once an avid flight simulator enthusiast, I quickly hit upon the correct meaning: Head-Up Display. This is a mechanism that overlays instrumentation or map data onto the view looking forward from the cockpit, so that the pilot doesn’t have to look down to see this information.

HUD in an F-18 aircraft. Source: AC Aviation Life

HUD in an F-18 aircraft. Source: AC Aviation Life

Wikipedia has a great introduction to HUDs and their history, but Mike’s Flight Deck has the definitive tome for flight simulator enthusiasts who want to actually build an HUD. According to Mike, the system employs various optical paraphernalia, but at the heart of the mechanism is what lies closest to my own heart – a CRT Display!

Oscilloclock 3-inch X-Y-Z display, custom-built for an HUD

An Oscilloclock 3-inch X-Y-Z display unit, optimized for use in an HUD

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A Humpty Dumpty CRT

Humpty Dumpty sat on a wall…
Humpty Dumpty had a great fall…

…and so the great nursery rhyme goes! But here at Oscilloclock labs, we’re not talking about an egg (which, one theory goes, represented the defeated King Richard III). We’re talking about a beautiful old CRT, savagely shaken and shattered during international shipping. What a waste. But oh, what a great chance to see the insides close-up!

This broken CRT missed its chance to live again in a nice VectorClock

This broken CRT missed its chance to live again in a nice VectorClock

Looking down the barrel. Imagine you are a phosphor molecule, with projectiles from this gun hitting you at the speed of light!

Looking down the barrel. Imagine you are a phosphor molecule, with projectiles from this gun hitting you at the speed of light!

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Toshiba Transformed

I believe in reincarnation. Every vintage device sporting a CRT deserves to live again, to be loved again, to lift someone’s spirits again. And in 2014, this beautiful Toshiba ST-1248D received its chance, born again as a suave Oscilloclock!

Toshiba ST-1248D Oscilloclock

See this in HD, and find more exciting videos on my YouTube channel

Manufactured sometime in the mid to late 1950’s, the ST-1248D was extremely well-designed and assembled, compared to other compact models available on the domestic Japanese market at that time. The engineers considered both function and form – latched panels on the side and back, delicately laced wiring, and a relatively spacious interior conducive to heat removal and circuit reliability. But the delightful brass bezel is what really makes this one of the most beautiful Oscilloclock conversions ever.

Toshiba ST-1248D - Brass bezel

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Oscilloclock in a Book!

Now here’s a familiar picture!

Oscilloclock Heathkit OR-1 in Chuck Penson's Heathkit Test Equipment Products book 1

It seems that the Heathkit OR-1 is a very rare oscilloscope nowadays, and Chuck Penson reached out to me for a photo to put into his latest book, Heathkit Test Equipment Products. This is a very well-written, well-researched treasure trove of data about the most iconic kit manufacturer of its time. Highly recommended!

Chuck Penson's latest book - superbly authoritative

Chuck Penson’s latest book – superbly authoritative


And of course here is the Oscilloclock Heathkit OR-1 again, in all its glory:

Heathkit OR-1 Oscilloclock

VectorClock Reloaded!

Aside

Fresh from Oscilloclock Labs – a new VectorClock creation, commissioned for the office of a world-famous film and television director:

Tek 520 VectorClock - S/N 002 (image published with permission of the owner)

Tek 520 VectorClock – S/N 002 (image published with permission of the owner)

This unit is based on an original Tektronix 520 vectorscope, which is the predecessor of the 520A that was used in the first VectorClock, described here. This custom conversion employs several key enhancements, and performance has never been better!

Be sure to check out videos on my YouTube channel.

Robbie’s Place

What do you do on a mundane business trip to London?

Why, shopping, of course! But if you were the humble proprietor of Oscilloclock.com, you would do much more than that… You would seek to expand your vintage electronic empire!

And so it was that I found myself hunting old electronic devices on Portobello Road one fine Saturday morning. Unfortunately, the game there was far and few between; only two relatively mediocre valve radios, in even more mediocre shape, at far more than mediocre prices…

Fortunately, my colleague was going to save the day. “Pop out to Cambridge for a visit – I’ve seen a few antique shops here,” said he. And after the hour train journey and a wee but of walking, we stumbled onto a veritable gold mine – Robbie’s.

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