Modified Heathkit HD-1410 electronic keyer

Dilshan Jayakody writes: HD-1410 is quiet popular iambic keyer which is manufactured around 1970’s by Heathkit. The original HD-1410 keyer is designed using 5 commonly available 74LS series TTL ICs and 8 transistors. Other than iambic operation it has an option to adjust sidetone frequency and support for (external) single-paddle key unit. In this project […]

RIP — Heathkit

After announcing last fall that they were re-entering the electronics kit business, it is now being reported that Heathkit Educational Systems has officially ended operations. According to the ARRL, it appears that the company discontinued operations in March or April, 2012, having previously laid off most of their workforce last December. This is certainly sad […]