Note
QST, May 1972, p. 153.
Designed to complement popular 100 to 200 watt SSB transceivers, the RF-675 can match the nominal transceiver 50 ohm output to a resonant doublet or any wire at least 15 feet long. The tuner covers 2 to 30 MHz .and will provide a VSWR of 1.2: 1 or less.
The unit, which can handle 100 watts average power or 200-watts PEP, has a built-in dummy load for off-the-air tune-up and digital turns counting for rapid resetting of the tuning controls. There is also metering of output, forward and reflected power.