An exploration of the history and eventual decline of Heathkit, a company famous for producing comprehensive electronic kits ranging from ham radio to early personal computers. Starting with military surplus in 1947, the brand became known for its high-quality components and educational manuals that helped users truly understand their builds. The article discusses how market shifts toward inexpensive pre-assembled electronics and the acquisition by Zenith led to the company's eventual closure in 2012.
According to a semi-official (provided by ex-Heath employee) equivalents list for Heathkit part numbers a 443-35 = "7441N BCD to Decimal Decoder 70V