D58 aiwa continues Amplifier rf 15w power electroschematics amplifiers Aiwa av-d58 inside view
Patent US8289084 - RF power amplifier device and operating method
Patent us8289084 15w fm broadcast rf amplifier circuit Patents amplifier
15W FM Broadcast RF Amplifier Circuit - Circuit Schematic
Patent US8289084 - RF power amplifier device and operating method
Aiwa AV-D58 Inside View