Hi All, while I am grounded and not allowed to play with heavy moving objects after a heart attack I decided to revive my knowledge of using valves in TV's as this just involves sitting down in the workshop and waving a soldering iron about!

I looked at the notes on the first 5" TV I made in 1975 and sketched out what I would need to show some pictures on the 3" CRO I made last year. See the special projects section for that one.

The following PDF is an account of how far I got before realising the 3" tube is not much chop and what I really need to do is revive the 5" tube and make a whole new 1975 5" just like the RHTV design. I now have hundreds of NOS ex TV valves and the smart signal tuner/IF strip bit is done with a K-Mart set top box coupled up to a chassis with enough valves to drive the required signals into the CRO.
I'll send a PDF through to Brad so you can all see what I did.

If you have an old CRO with a valve CRT and want to learn a bit about basic TV principles why not give it go?


Cheers, Fred.

TV - CRO Adaptor

Take it easy Fred. We look forward to plenty more of your articles.

G'day Fred,

Good to see you are on the mend. You must be doing well if you are up to a project like this one.