PA-500WH: Super High Power HF linear amplifier features the latest in RF amplifier design. The circuit employs strip-line technology. This advanced tuning method eliminates both the requirement for hand selecting components and point-to-point wiring. This Technology coupled with the PA-500WH exclusive modular construction provides unsurpassed reliability and RF performance. The RF transistors are continuously biased through a fully regulated bias supply. A built-in cooling fan protects the RF transistors from thermal decay. Voltage regulation, temperature compensation.
TOPTEK: Linear amplifiers have an outstanding reliability record over many years! RF power transistors in push-pull (parallel)
Frequency Range：1.5 – 30 MHz
RF Input Power：5 – 50W AM/FM . 10- 100W SSB/CW
RF Output Power：450W AM/FM . 500W SSB.
Modes：AM / FM / SSB / CW
Transistors: 4 x Toshiba 2SC-2879
SWR：1.1 – 1.5
DC Power Requirement: DC 13.8V / 80 Amps Negative Ground Only
Dimensions：195 ( W ) x 285 ( L ) x 100 ( H ) mm
Make sure to install the PA-500WH in a location where an adequate flow of air will cool the aluminum heat sink. Do not install in an enclosed space such as console or glove box.
Note: Prior to switching the PA-500WH amplifier (ON) check that the PA-500WH rear panel mount PTT on / off control switch is set to (OFF) to ensure the carrier operate relay operates.