Yaesu FT-857 / FT-857D Final PA Unit Board – Tested Working – HF/VHF/UHF Power Amplifier Board
Request quote
Yaesu FT-857 / FT-857D Final PA Unit board removed from a donor Yaesu mobile HF/VHF/UHF transceiver.
This is a used tested-working PA/final amplifier board intended for repair, restoration, and replacement use in compatible Yaesu FT-857 / FT-857D radios. The PA unit is the main RF power amplifier section and may include valuable original Yaesu final transistors, driver components, RF transformers, coils, relays, bias components, connectors, capacitors, resistors, and thermal hardware.
This board is ideal for ham radio technicians, Yaesu repair builders, and operators restoring or repairing FT-857 / FT-857D radios.
RF Boneyard Bench Notes
Buyer is responsible for verifying compatibility, board revision, connector layout, radio version, final transistor configuration, service manual procedures, and proper installation before use.
This is a used tested-working donor PA unit, but it is not guaranteed to repair every radio. Other faults in the radio, incorrect bias adjustment, poor heatsink contact, wrong board version, excessive drive, or damaged surrounding circuits can damage this board.
Ask the bench before you buy.
Post a question about this part
Login or create an account to ask a product question. This helps keep spam out of the RF Boneyard bench.
Login to AskAnswered Questions
No answered questions yet. Be the first to ask the bench.