American Trans-Coil: Manufacturer of military parts including R390A and other radio parts for sale. USA.
DaySequerra: Manufacturer of high definition modular tuner designed for professional, audiophile or home theater applications.
Music in every room: Provides a radio designed specifically for kitchens and bathrooms. Retail outlets UK electrical wholesale distributors.
Nortex Electronic Co.: Surplus test equipment and components, tube amps, RF and power supply components, transformers, capacitors, power resistors, new and used parts. In Fort Worth, Texas.
Peter W. Dahl Co.: Transformers and chokes. New, used and custom built. Texas, USA.
Radiosophy: Manufacturer of transportable HD Radio receiver.
Weybrook: Manufacturer of radio products like dynamo, Internet and HiFi radios. Germany.