In a last minute, four page, center insert to the 1966 catalog titled “New Product News” Heathkit announced the SB-100 five-band SSB transceiver. Like the other transceivers of this time, the SB-100 (and later improved models SB-101 and SB-102) would become one of Heathkit's best selling amateur radio products. This included a scaled-back, lower-priced version of the SB-100 called the HW-100 (later updated to the HW-101) introduced in 1969. While the SB series were affectionately nicknamed the "Sugar Baker" series, the HW series were affectionately nicknamed the "Hot Water" series.