You are bidding on a Barker and Williamson B&W 850A Band-Switching Pi-Network Assembly. This network is for a homebrew linear amplifier using a 4-1000A, a 3-1000 or a pair of 4-400's or similar. This network will cover 80-10 meters and will match a plate load impedance of 2500-5000 ohms. I used one of these in the 4-1000 amplifier I built in the 1990's. This unit is in good shape with no arcs or burn marks.
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