Tape recorder kits and transistor based intercoms in 1961? I'm really impressed! In Spain we had Sales Kit and Carkit, but the kits were much simpler and only a few came with a case
I always order boards with ROHS surface finish and use lead free solder. Soldering is a little bit more difficult on large ground planes. I am just a hobbyist, but It works fine for me. Anyway, I recently bought a Philips air purifier that shows 3 different types of information about the air quality: IAI (indoor allergen index): 1 good, 12 bad GAS: L1 good, L4 bad PM2.5: <12 good, >55 bad The air in the house seems to be excellent: IAI = 1, GAS = 1L, PM2.5 = 2, same values in the basement where I have my shop. If I use the 3D printer, IAI goes to 2, GAS to L2 and PM2.5 to 8-11, still ok… But when I start soldering, this thing goes crazy! IAI = 11, GAS = 2L and PM2.5 > 80, even using two small fume extractors. And, of course, the led ring changes from a nice blue to an unhealthy red. Solution: never check the air purifier values while soldering :-) -- 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/94cea325-e157-4771-bbf7-38719671f781%40googlegroups.com.
