In March 1992 Heath announced that it was discontinuing electronic kits after 45 years. The company had been the last large survivor of a dozen kit manufacturers during the 1960s. In 1995 Bull sold Heathkit to a private investor group called HIG, which then sold it to another investment group in 1998. Wanting to only concentrate on the educational products, this group sold the Heath/Zenith name and products to DESA International, a maker of specialty tools and heaters. In late 2008, Heathkit Educational Systems sold a large portion of its collection of legacy kit schematics and manuals along with permission to make reproductions to Don Peterson, though it still retained the copyrights and trademarks, and has pointers to people that can help with the older equipment.