Mitsubishi RA08H1317M 8 Watt RF MosFET amplifier module for 12.5 vdc portable Radios that operate in the 135 to 175MHz bands.   The M series has a plastic cover, and a stepped rear mounting flange.

These modules are suitable for both non linear FM and Linear SSB type modes by adjusting the bias voltage. 

Module Size: 30mm L x 10.0mm W x 5.4mm H.  For further information please see the Mitsubishi RA08H1317M Data sheet

PLEASE NOTE: THESE ARE GENUINE MITSUBISHI MANUFACTURED IN JAPAN