I finished converting the first row of annunciator lights. Due to the ‘Christmas tree’ lights burning out, switching to 6.3 v bulbs and sockets. I’m keeping the trigger and light wires together to they can use any of the relay blocks on the new relay board. Only 24 more to go! It’s taking a while […]Read more "7/24/17 – Convert the Annunciator Lights"
Got the new Annunciator Relay Board populated and tested. Now starting to remove the old lights and install the light bulb sockets. After the sockets are installed, run trigger and light bulb wires to the new board. Hopefully will be done by this weekend. That should be it for hardware mods!Read more "7/17/17 Annunciator Relay Board"
I got the 12 volt bulbs. Did a side-by-side comparison. You can see the 6 volt bulbs (running with 5 volts) look the same as the 12 v bulbs. Will stay with the 6 volt bulbs since the back of the Annunciator box is already wired for 5 volts. The bulb on the right is […]Read more "7/13/17 6.3 vs 12 Volt Bulbs"
Oh No – What’s this? Reactor accident? No, I forgot to switch reactor power monitor from intermediate to power range. There will be a number of these ‘Procedure Violations’ by the time the software is finished. Right now, I have working equations for the primary and secondary sides. Things appear pretty stable during normal operations. […]Read more "7/6/17 Oh No"
Update on the new annunciator lights: The LED lights will not work. Even grouping 3 and 4 together, they still don’t emit enough light. So the fallback option is to use a relay and an incandescent 6.3 volt bulb. Did some testing and the LED Driver board will fire the relay and a status LED. […]Read more "6/26/17 – Annunciator Lights Update"
The new lights did not work any better. I put them directly to 5 volts, through 1 diode and then 2 diodes. All of them still burned out after a number of hours. Bought a standard 6 volt bulb (screw base, 0.3 A). If I used the current base resistor of 1K, light did not get very […]Read more "6/11/17 Annunciator Lights – Still Have Issues"
While writing the simulation software, some of the annunciator lights would stay on after exiting the program. After about 10 minutes of coding, I restarted to check what I just did. Glanced at the panel and the usual annunciator lights were not on. Checked my code to see what I did to mess up the […]Read more "6/8/17 Hardware Failure"