Yaesu FL-2000B, Instruction Manual

Page: 11 / 20

Band Switch : On desired band to be tuned
Loading : Fully counter-clockwise
Plate Control : In the position described on page 7.
With the exciter tuned up on CW in the middle of the band to be tuned, turn on the
FL-2000B. The amplifier now works without plate voltage. Extreme care should be
taken, because there is high voltage AC on the secondary terminals of the high
voltage transformer.
Increase the output from the exciter until the amplifier plate meter read 0.1 Amps.
Tune the 'plate control for a dip in plate current and tune the slug on the correct input
coil for a minimum reflected power reading on the SWR meter that is connected to
the input line.
After re-alignment, disconnect the power cord from the AC line and reconnect the
disconnect wiring to the secondary terminals of the transformer.
- 10 -