/diy/ - Do It Yourself

>>2036249
Got all the materials for 100 vactrols for about $6. As a hobbyist the labour costs have never been an issue, and the toxicity isn't a problem either since it's objectively less of a hazard than leaded solder. Or even lithium ion batteries. OTAs and H11s and mixers are at least 5 times the price. Some mirror-style analog optos might come close, but they require an op-amp each. When someone makes a monolithic mirror-style analog opto+op-amp I'll go for it. Picrel.

Nobody in their right mind should use LDRs for light sensing though. So outside of vactrols in somewhat obscure low-frequency analog electronics, there isn't much of a reason to ever use LDRs.

>>2036282
>Can I replace the coil for a better one?
Yeah, or maybe pot it in something. So long as you respect its thermal characteristics.

>>2036489
Ask a question if you don't understand something. And watch the youtube channel recs.