Uploaded May 2011 | Updated September 2026, 1 day ago
A linear current LED transmitter, using an LM1458 op amp, an 2N3904, and lots of great ideas from KA7OEI's great work.
A linear current LED transmitter, using an LM1458 op amp, an 2N3904, and lots of great ideas from KA7OEI's great work.










