Another thermal imaging camera

[@douro20]

Using the EPROM in that manner reminds me a bit of Bob Blick's pocket-sized LED sign project which uses an EPROM and some CMOS walking-ring counters to drive a small LED matrix.

[@gamccoy]

It's really fascinating to see old gear like this. The parts count for these old cameras is immense. So much so that a device like that was probably at the limit of practicality and profitability.

[@TheBananaPlug]

As you mention, that shutter motor would be where it is to minimize mag fields. Common practice in tube scopes was to put trafos behind the tube, even when the tube and trafo were shielded, again to minimize mag. field interactions.

[@douro20]

I've seen the type of connector at 8:25 used in some old floppy disk drives for the electrical interface to the read/write heads.

[@mikeselectricstuff]

Well at least this one actually exists

[@Razor2048]

no need for a low pass filter, due to the frequency, a simple noose reduction process in adobe audition or audacity will get rid of it without impacting the vocals. Anyway, great video, did you ever figure out the focus issue (eg if you manually move the lens to adjust focus)?

[@williefleete]

The high pitch is probably the EHT supply for the viewfinder

[@elboa8]

Mike. Any chance of getting a modern equivilent for comparison?

[@ceriand]

Could also be the scanning coils on the vidicon tube.

[@marksmphone6694]

Hi Mike, thank you for your videos. They make electronics seem easy, though I suspect experience and common sense have a LOT to do with it. I've got my hands on one a similar model made by eev: model no. 4428. It works brilliantly, and there appears to be quite a bit of life left it in. (mercury life meter says so) Looking through the viewfinder is cumbersome, and I would like to bypass the crt to have the video signal on an lcd screen for remote viewing and capture. ( as you mentioned at 8:18, and showed in the video) Could you advise? If I figure it out, I'll upload a video of it in action. Thanks, Mark

[@nixietubes]

Interesting that these tubes were still being manufactured around the 90s and possibly 2000s Your pevicon camera is quite more interesting than mine Mine doesnt have the calibration shutter, chopper wheel, or visible light camera

[@francistheodorecatte]

Fiberglass is reasonably heat resistant until the resin reaches its flash point.

[@nixietubes]

I believe its blurry because these old thermal cameras typically need very fast germanium lenses (f/0.7-f/1) which leads to a practically non existent focal plane The "motorized shutter" is called a chopper

[@aserta]

That fiber-glass shell would look bad-ass as a robot head. "The return of Thermo the fire spewing robot from Venus"

[@paulham]

How much did you get it for?

[@douro20]

The Starsight is a more advanced camera, from what I understand.

[@ChrisCDXX]

VERY cool tear down... Subscribed good sir.

[@Brant92M]

Agreed. That was physically painful to listen to, especially with headphones on.

[@fredlllll]

"look at that eeprom" how do read out such a thing??

[@ceriand]

The sound that shutter motor makes is horrible for people who can hear it. If you do any further videos of this, I'd suggest low-pass filtering the audio.

[@fredlllll]

uh no? the window is to erase it with uv rays

[@bborkzilla]

That battery pack looks like it came from an Icom hand-held...

[@nrdesign1991]

What happens if you remove the EPROM? Will the mask be gone?

[@xzaz2]

DAT SOUND

[@DeviloftheHelll]

sometimes i really hate i hear beyond the upper region of the normal human hearing. and this is 1 of the times

[@artifactingreality]

the shutter noise isnt that bad.

[@202Electrics]

with a microscope and look trough the little window

[@commodork]

You find the craziest shit.

[@heikovanderlaar3780]

This video killed my ears with loud high pitched sounds.

[@superdau]

While I could "feel" the sound in my teeth, why filter it? I'd rather hear every noise the thing makes. If you can't stand it, most likely you've got an equalizer on your PC to almost mute high frequencies. Btw. I think it's not the shutter motor that's making the sound. You can hear it even when it's not moving. Pretty sure it's coming from a DC-DC converter, most probably the HV generator for the tube.

[@megasmart1337]

cool!

[@ElectronicTonic156]

(13:50) Number 5 is alive!

[@drag0n123432]

Use your windows equalizer ;)

[@BulletMagnet83]

Well, this is the internet... somebody had to do it!

[@BulletMagnet83]

Still a better camera than Mu Optics ;-)

[@OK2BCK]

your comment is really horrible for people who can read. if you make any further comments like this, I'd suggest fast-passing to another video.

[@prankmypants]

all pretty bog standard stuff

[@dasaleet]

I love this comment.