A history of the Thordarson Electric Manufacturing Company, part of our research archive dedicated to 20th century Chicago manufacturers and their products.| Made-in-Chicago Museum
A history of the Zenith Radio Corp, part of our exclusive archive of research focused on 20th century Chicago manufacturers and their products.| Made-in-Chicago Museum
A dual-band transceiver with a crisp receiver and a clean SSB signal is described. It started its life as an investigation of the excellent S7C receiver described in EMRFD. This transceiver was specifically designed to use components that are easily available in TV and Radio spares shops. The receiver sports an above average dynamic range, […]| VU2ESE