On the Burroughs displays then bulbs simply push in to sockets and I pulled the bulbs and pushed the LEDs right in - perfect fit! - Richard
On Saturday, 21 December 2024 at 16:40:45 UTC gregebert wrote: > Interesting. I have a similar type of display (IEE350 single-plane) which > uses incandescent bulbs. They are a lot smaller than the more-common 327 or > 328 bulbs that are easily converted to LEDs, so I imagine you faced a > similar challenge. > > How did you make your LED replacements pluggable ? For the 327 bulbs, I > had to remove the bulb from the base with a heatgun, then solder an LED in > it's place making sure the polarity is correct. External dropping resistor > is required (I actually use an NPN current-limiter). The bulbs in my IEE > displays are too small for this, so I drive them with a current-limiter. > There are hopefully enough extra bulbs (this is a clock, so not all > numerals are used. Of 60 total bulbs, only 45 get used) to last me thru the > years. Despite this, I dont run the clock very much and there is > preheat/cooldown hardware and software to extend the lifetime further. > Supposedly, these bulbs rated to last about 100,000 hours because this > display was intended for cockpit usage. > > On Friday, December 20, 2024 at 10:22:53 PM UTC-8 Richard Scales wrote: > >> I have completed a designed to drive these displays based on the idea of >> removing the original incandescent bulbs and simply plugging in suitable >> LEDs in their place. >> My problem is that I only have four of these displays and my design is >> for six of them! >> The six digit design is for a fully functional 6 digit clock with time, >> date, temp, pressure and humidity displayed with NTP Sync and web gui for >> settings. >> The purpose of this post is two fold: >> I would really like to get hands on two more of these displays - the >> Burroughs one ideally though the Omni Ray will sit well next to the >> Burroughs. If anyone has a stash of these then I would readily trade a kit >> for the clock for two of them. >> >> Then, if anyone does have a stash of these displays and wants to make >> them tick then my design can do the job, that is assuming that you are >> happy to replace the bulbs with suitable LED's (they simply plug in/out so >> it's not damaging anything). >> >> Also, I know that, for the Burroughs versions at least, they support a >> left and right hand DP. My design supports up to 4 DP's which could be used >> as 'colon separators' or decimal points in temp display etc. >> >> Here is a picture of a full 6 digits in action - I came up with the >> design for this person who had 6 of the displays (after he kindly sent me >> his remaining 4): >> >> [image: BDPic1.jpeg] >> >> - Richard >> >> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/6629d4aa-9484-4c1f-aa31-839bd7c4fa51n%40googlegroups.com.
