Hi folks, I know this is not a real project or so, but i just wanted to share this with you.
I was conducting experiments with radiation today, and when i looked at the analog scale of my Ludlum Model 3 geiger counter, i was wondering how this would look in neon. Then i came up with the idea by controlling an IN-13 with it. Basically i just clamped the analog meter (i did not want to physically modify anything on the meter) and take a voltage from the 1mA analog scale there. I amplified this signal by an opamp (LTC6268 was the one i had, any opamp will do). To control the level i added a potentiometer in the feedback path. The output of the opamp was controlling the IN-13 current via a Transistor (KSP44 in my case. MSP44 will do too). The complete circuit was made from parts that i just had and is fully analog. I've made a short video where you can see how this looks. I'm switching between "fast" and "slow" mode for counts about in the middle of the video. https://youtu.be/aboBAb98Ji0 I kinda like how this looks and works :-) maybe i will 3D-print a mount for the IN-13 (with a scale) and attach it to my other Ludlum meter. What do you guys think about it? -- 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 on the web, visit https://groups.google.com/d/msgid/neonixie-l/75c4b130-efa2-4be5-bc75-fe9490f90d39%40googlegroups.com.
