| ▲ | davidwritesbugs 9 hours ago |
| Oh god I feel old. I remember being an excited schoolboy thinking how magic this was when it debuted. |
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| ▲ | davidwritesbugs 9 hours ago | parent | next [-] |
| I also remember being amazed, and did a forehead slap, when an old army bomb disposal man explained how, what I thought was an innocent device, was used by the IRA in bombs. |
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| ▲ | nickcw 9 hours ago | parent [-] | | Ha. When I was a teenager I used to build 555s into timers for the same purpose using a no PCB rats nest construction. Though surprising the family at dinner with a small explosion was a much more innocent purpose. |
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| ▲ | Brian_K_White 8 hours ago | parent | prev [-] |
| For me that is blue leds. |
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| ▲ | davidwritesbugs 8 hours ago | parent | next [-] | | Yes! I remember thinking "damn you band gap physics, if we only had blue leds we could do colour displays with LEDs, but that can never happen." | |
| ▲ | mhh__ 3 hours ago | parent | prev [-] | | "rareleds" on Instagram is fantastic. Vintage LEDs set to apex twin and so on |
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