Joe,
I thought about using that original radio panel front but realized I dont have the room on my desk and decided to make my own narrower panel so I could stack the COMM and NAV displays in a vertical arrangement.
Your question about the opening was concrening the original radio.
Those glass windows are 24mm x 9 mm.
Trying those .3" digits would be a possibilty but I think the .36" display I have will be close enough, however, thanks for the offer
Edit; I never for once thought there were any 7 segment displays that would fit that 24 x 9 opening.
Kirk.
7 segment display Pin outs?
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Re: 7 segment display Pin outs?
Last edited by Kaellis991 on Sun Feb 05, 2023 11:27 am, edited 1 time in total.
Re: 7 segment display Pin outs?
no worries Kirk,
whatever works for you.
if you want the special custom 0.3" x 5 digit units let me know, only too happy to help.
Best of luck sir.
Or, if you want me to mod the original hardware for AM then also no problem.
Joe
whatever works for you.
if you want the special custom 0.3" x 5 digit units let me know, only too happy to help.
Best of luck sir.
Or, if you want me to mod the original hardware for AM then also no problem.
Joe
Last edited by jph on Sun Feb 05, 2023 11:29 am, edited 1 time in total.
Joe. CISSP, MSc.
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Re: 7 segment display Pin outs?
I think there was a communication failure here on my part.jph wrote: ↑Sun Feb 05, 2023 10:44 am Hi Kirk,
I thought you were using the original panel from the hardware ?
It would be better - and fun - to make the original hardware work with AM. pretty easy too.
it's only a (probably) bcd output per digit so 4 pins per digit. - a single mega or pico with mux units would sort it
So were you thinking that I could use the original hardware front panel only and then use a 7 segment display that would fit in that window with the accompanying circuit board?
It's a 24mm x 9 mm aperture that I never once thought would be a 7 segment display that would fit in that glass opening since those white digits on the rotary wheel were so narrow.
Or were you thinking that I could use the actual innards of the rotary switches and the dials as is with all the multiple wafers and contacts?
It would be fun to try it either or both ways...
Kirk
Re: 7 segment display Pin outs?
Hi Kirk,Kaellis991 wrote: ↑Sun Feb 05, 2023 12:23 pmI think there was a communication failure here on my part.jph wrote: ↑Sun Feb 05, 2023 10:44 am Hi Kirk,
I thought you were using the original panel from the hardware ?
It would be better - and fun - to make the original hardware work with AM. pretty easy too.
it's only a (probably) bcd output per digit so 4 pins per digit. - a single mega or pico with mux units would sort it
So were you thinking that I could use the original hardware front panel only and then use a 7 segment display that would fit in that window with the accompanying circuit board?
It's a 24mm x 9 mm aperture that I never once thought would be a 7 segment display that would fit in that glass opening since those white digits on the rotary wheel were so narrow.
Or were you thinking that I could use the actual innards of the rotary switches and the dials as is with all the multiple wafers and contacts?
It would be fun to try it either or both ways...
Kirk
I mean using the original hardware with the original innards
Joe. CISSP, MSc.
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Re: 7 segment display Pin outs?
Hey Joe,
That would be a fun project, but where would one even start with this jumbled mess of gears, wafers, contacts and wiring?
That would be a fun project, but where would one even start with this jumbled mess of gears, wafers, contacts and wiring?
Re: 7 segment display Pin outs?
Well it's not exactly a beginners project but also not particularly complicated
They could be using various methods such as resistive ladders and / or offset multi-pole switches. There are two 20 (maximum) position reels each side. The workings will no doubt be duplicated and identical each side.
Best way to start is to get schematic from the service manual.
It is so old that here will definitely be one. That will tell you all you the information needed to mod it for use with a micro controller.
See if you can find one ? - one with good quality copies of the - probably - hand drawn diagrams.
After that it should be fairly straight forward.
Joe
They could be using various methods such as resistive ladders and / or offset multi-pole switches. There are two 20 (maximum) position reels each side. The workings will no doubt be duplicated and identical each side.
Best way to start is to get schematic from the service manual.
It is so old that here will definitely be one. That will tell you all you the information needed to mod it for use with a micro controller.
See if you can find one ? - one with good quality copies of the - probably - hand drawn diagrams.
After that it should be fairly straight forward.
Joe
Joe. CISSP, MSc.
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- Posts: 581
- Joined: Mon Sep 07, 2020 8:49 am