You guys thinking what I'm thinking?

[Braeden108]

Sorry for the clickbaity title but I couldn't put a serious title on the because it's nothing more than a pipe dream.

 

So the AJS-37 was announced today. I couldn't help but notice that glorious cathode ray tube proudly and prominently in the center of the panel.

 

https://scontent-sea1-1.xx.fbcdn.net/t31.0-8/15168794_1804975513058452_7578342252096843222_o.jpg

 

And I thought to myself...

 

You can get cathode ray tubes out of old oscilloscopes. You can wire the electromagnets into an analog X and Y signal... You know, simple stuff.

 

Not many questions here I just wanted to plant that idea into the backs of your heads. Because deep down you know you'd rather have a high voltage tube in your pit than a little LCD screen.

 

https://www.etsy.com/listing/488001299/brimar-cathode-ray-tube?utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_b-electronics_and_accessories-audio-stereos_and_home_audio&utm_custom1=6f35f81b-0ade-4152-a65d-3919b261c4a4&gclid=CjwKEAiAyO_BBRDOgM-K8MGWpmYSJACePQ9CPv_qPwL3GEGkYdESwobsAZQYLtdxQK8i8jsCJlsM2xoCB_zw_wcB

 

Not too expensive either.

[Braeden108]

This is not a rabbit hole I should go down... But I feel old oscilloscopes are basically set up for this. You just have to set the vertical and horizontal sweep to a known value than modulate the voltage on the scopes input based on the image you want to display. Easier said than done. But its better than starting from a naked tube.

 

http://www.ebay.com/itm/Vintage-Sencore-Wide-Band-Oscilloscope-PS148A-Powers-On-AS-IS/332040740474?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D38530%26meid%3Dec7b594476df42d9a053c9beb59d226a%26pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D381726368204

[Kornskydiver]

Sounds like a interesting project!

[agrasyuk]

http://www.mikesflightdeck.com/rwr_project/rwr_project.html

[SinusoidDelta]

Go for it! Here's another one:

http://hackaday.com/2012/11/05/custom-circuit-drives-a-small-round-crt-display/

[Thadiun Okona]

Super cool, but if it were me I'd make a working lcd version first and after the pit is complete maybe retrofit an actual scope screen. Very few people will truly appreciate the difference between a real crt vs a faked lcd if the function is identical.

 

I've seen too many projects/cockpits not get done or even to a working state by focusing too closely on something which can be very nicely handled in more practical ways.

 

...then again, this is the cockpit builders section of DCS :p

[Deadman]

If you make a replica A-10C and want a RWR how will you hide the extra bit of the screen? You have The Gun Ready Light indicator above it the ADI to the right to the left the LCD would hang over the MFCD and bezel and then you have the Air Speed indicator below. So unless you have a supply of square 3.25 inch LCDs laying around.

[Duckling]

A third option for a scope or tft/lcd is a rear mounted miniprojector in a tube.

We hacked a radarscope (true 5" J35 Draken this case) and s simple media behind the lense good enough for backprojection. Low level graphic projection works well and the orig cathod tube is saved and out to show area. Proj screen is good enough but clearly not as distict as the true one or a crt

 

Same approach should be doable with the RWR also. Got some pics stached from that build if interested

 

/gus

[Braeden108]

Super cool, but if it were me I'd make a working lcd version first and after the pit is complete maybe retrofit an actual scope screen. Very few people will truly appreciate the difference between a real crt vs a faked lcd if the function is identical.

 

I've seen too many projects/cockpits not get done or even to a working state by focusing too closely on something which can be very nicely handled in more practical ways.

 

...then again, this is the cockpit builders section of DCS :p

 

 

I don't have plans to build an Viggen pit, no time money or space. But building a crt display sounds like a lot of fun. Though I do realize I put this in the home cockpits area. It probably should be in input output

Edited November 29, 2016 by Braeden108

[Warhog]

A third option for a scope or tft/lcd is a rear mounted miniprojector in a tube.

We hacked a radarscope (true 5" J35 Draken this case) and s simple media behind the lense good enough for backprojection. Low level graphic projection works well and the orig cathod tube is saved and out to show area. Proj screen is good enough but clearly not as distict as the true one or a crt

 

Same approach should be doable with the RWR also. Got some pics stached from that build if interested

 

/gus

 

Hey Gus

 

I was thinking of something similar for my RWR. I'm getting close to actually needing to deal with this dilemma. I haven't been able to source and kind of acceptable display that will work without it sticking out one side of its enclosure. So I am going to experiment with a pico projector and try rear screen projection for RWR. No idea whether this will work but I'm running out of ideas.