Table of Contents
Advertisement
agate statesman att
The TL-922A
is a Class AB2, grounded grid linear
amplifier
developed
by Trio-Kenwood
through
ad-
vanced high-power technology using two high-per-
formance
Eimac
3-500Z
power
tubes.
It covers all
bands 160 m through 15 m for SSB, CW and RTTY
modes of operation.
Unprecedented
Reliability
The TL-922A
is designed to provide stable, high RF
output power for extended periods of continuous use.
Engineered with Trio-Kenwood's advanced circuit and
mechanical
technology,
the TL-922A
employs
two
rugged 3-500Z power tubes to their full advantage.
Low Intermodulation Distortion
Intermodulation
distortion
(IMD)
is minimized
through the use of negative R.F. feedback.
Quick Turn-On
Warm-up is not necessary. The 3-500Z tubes are fast
heating.
Full Safety System
To protect you against any possible high voltage elect-
ric shock, your TL-922A has a double safety system
comprised
of interlocking switches. One interrupts
the high voltage
primary
circuit while the second
directly grounds the secondary high voltage circuit.
Also provided are bleeder resistors for discharging the
high voltage capacitors and "DANGER"
warnings at
high voltage positions. Please observe all warnings,
they are for your protection.
Newly-Developed Fan Motor Delay Stop Circuit
To reduce power tube deterioration, your TL-922A
has a newly-developed
fan motor delay-stop circuit
comprised of a thermal delay relay. The cooling fan
will normally run for 140 seconds (Typ) after power
is removed from the unit and will measurably ex-
tended tube life.
Mode Switch for Efficient Linear Operation
MODE
switching is provided to select between the
SSB Mode for the maximum PEP output with good
SECTION 1. FEATURES
sustenance
canna ta
10.
11.
12.
13.
linearity, and the CW Mode for low power consump-
tion and heat generation during extended periods of
operation.
Linear Amplification Control Switch
This switch is capable of setting your TL-922A in the
straight-through
state
irrespective
of the
standby
control on the exciter.
Variable Threshold
Level (ALC Detector)
The ALC circuit will accommodate exciters of 80 w
to 120 w
(nominal)
by varying the ALC
threshold
level. This effectively prevents overdriving the final
power tubes, limiting the Amplifier to its linear range
and guaranteeing low distortion at maximum
power.
Two Panel Meters
In adjusting or monitoring your TL-922A, one meter
always indicates the (Ip) plate current; while, with the
other, you may
read
(Ig) grid current, (RF) relative
output, or (HV) high voltage.
This facilitates ease of
operation of your TL-922A.
Rigid Mechanical Structure
The die-cast side panels effectively support the weight
of the amplifier
against shocks
and
jarring during
transportation. Recessed side panel handles are pro-
vided so the Amplifier can be easily carried.
Vernier Plate Tuning Dial
The PLATE
tune dial is equipped with a reduction
gear that facilitates easy tuning, particularly for the
higher bands.
It also effectively prevents accidental
miss-tuning
during
operation.
Controls
and
panel
arrangement,
designed
to
human _ engineering
standards,
provide
superior
ease
of operation.
Neat, Contemporary Appearance
Mechanical arrangement and sophisticated design to
match any Trio-Kenwood
transceiver or transmitter.
Your TL-922A
can
also be used
as a high-quality,
general purpose
Amateur
band
linear amplifier with
any exciter capable of 8OW to 120W RF output.
Advertisement
Table of Contents
