| ▲ | Brian_K_White 8 hours ago | |
For me that is blue leds. | ||
| ▲ | 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 | ||