The MFJ-1040B preselector boosts signals from 1.8 to 54 MHz. It utilizes
dual gate MOSFET, bipolar transistors for low noise and high gain.
Push-button switches provide for two receivers, two antennas, 20 dB
attenuator and ON/BYPASS. The band switch selects: 1.8-3, 3-6, 6-15 and
15-60 MHz. Controls for Delay, Gain, Band and Tune. Unlike most
preselectors, which are for receive-only, the MFJ-1040B may be used for
transceiver. It has a relay that automatically bypasses the amplifier when
transmitting. It can handle a transmit signal up to 350 watts PEP.

Rear panel jacks provide for the use of either RCA phono plugs or PL-259
connectors. Size: 6 x 2 x 6 inches. Comes with optional 12 VDC 300ma AC
Adapter.

Works perfectly but has some scratches on top. Asking $75 which includes
shipping to CONUS.