Specifications

Ameritron doubles average SSB power!
AL-80B kilowatt output desktop linear can double your average
SSB power out with high-level RF processing -- runs cooler be-
cause its classic 3-500ZG tube completely turns off between words!
4 http://www.ameritron.com
Ameritron’s AL-80B kilowatt output
desktop linear can double your average SSB
power output with high-level RF processing
using Ameritron’s exclusive Dynamic ALC
TM
.
You get cooler operation because the
AL-80B’s exclusive Instantaneous RF
Bias
TM
completely turns off the classic 3-500
tube between words. It saves hundreds of
watts wasted as heat.
You get a full kilowatt PEP output from
a whisper quiet desktop linear. It’s a com-
pact 8
1
/
2
Hx14Dx15
1
/
2
inches and plugs into
your nearest 120 VAC outlet. Covers all
bands 160-15 Meters, including WARC and
MARS (10/12 Meters mod with license).
You get 850 Watts output on CW, 500
Watts output on RTTY, an extra heavy duty
power supply, a classic 3-500 tube, nearly
70% efficiency, tuned input, Pi/Pi-L output,
inrush current protection, multi-voltage
transformer, dual Cross-Needle meters, QSK
compatability, two-year warranty, made in
USA, plus much more!
Dynamic ALC
TM
doubles
average SSB power
The AL-80Bs exclusive Dynamic ALC
TM
gives you high-level low-distortion RF pro-
cessing. When activated, it can more than
double your average SSB power and pro-
duce up to 6 dB improvement in intelligibil-
ity. Maximizes your talk power without dis-
tortion/splatter.
A convenient front panel control lets you
adjust output power level.
Instantaneous RF Bias
TM
eliminates heat
The AL-80Bs exclusive Instantaneous
RF Bias
TM
completely turns off the 3-500
classic tube (except filaments) between
words and dots and dashes. It eliminates
hundreds of watts wasted as heat to gives
cooler operation, longer component life.
Gutsy Heavy Duty Power Supply
The guts of the AL-80B is its heavy duty
power supply. A 26 pound transformer
using a high silicone steel core, computer
grade capacitors, heavy duty bleeders and
ten 3 amp, 1000 Volt power rectifiers give
you a stiff 2700 volts fully loaded. Many
amplifiers using two 3-500s use such small
power supplies they don’t deliver much
more power output than the AL-80B.
70% Efficiency
The AL-80B is built on a rugged steel
chassis. It has a separate RF compartment
that’s fully shielded to keep RF from leak-
ing out. This keeps RFI and TVI to a mini-
mum.
Superb RF design and layout, Hi-Q tank
circuit and commercially rated RF power
components give you nearly 70% plate effi-
ciency over the entire operating range. Your
power goes into your antenna instead of
heating up your amplifier.
A whisper quiet internal fan draws in
cool air over power supply components and
pressurizes the 3-500 classic tube compart-
ment to remove heat for longest life.
Tuned input lets your rig
deliver full output
50 Ohm broadband Pi-Network tuned
input is used. Even fussy solid state trans-
mitters will deliver full power!
Pi/Pi-L Output Network
A carefully designed Pi/Pi-L output net-
work using the optimum Q for each band
gives exceptionally smooth tuning, extreme-
ly wide matching range, full band coverage
and peak performance at all power levels.
Ball bearing vernier reduction drives
with logging scales on both the plate and
load controls make tuning precise and easy.
Rapidly retune to your favorite frequency.
Step-Start Inrush Protection
TM
Step-Start Inrush Protection
TM
stops
damaging inrush current with a start up
sequence that’s easy on your tube and power
supply components.
Multi-Voltage Power Transformer
Excessive line voltage stresses compo-
nents and causes wear out. Low line volt-
age causes a “soft tube” effect -- low output/
signal distortion.
Our exclusive Multi-Voltage Power
Transformer
TM
lets you optimize for differ-
ent line voltage. Select from 14 different pri-
mary voltages from 90-140 VAC & 205-250
VAC.
The high voltage secondary can be wired
to reduce plate voltage for efficient operation
below 400 Watts for use outside the USA.
Dual Illuminated
Cross-Needle Meters
Ameritron’s dual illuminated cross-nee-
dle meters give you four separate meters to
monitor your operating conditions -- you
can tell right away if something is wrong.
Grid and plate current and forward PEP
output power are continuously monitored to
show improper loading/abnormal conditions.
The fourth meter can be switched to
monitor your 3-500 classic tube DC plate
voltage, reflected PEP power and the SWR
of your antenna, ALC voltage to your rig
and the grid current that starts ALC action --
get a clear picture of your AL-80B.
QSK Compatible
The fast open frame T/R (transmit/
receive) relay in the AL-80B switches near-
ly as fast as some vacuum relay QSK T/R
switches.
For lightning fast QSK operation use the
optional external electronic PIN diode QSK-
5 T/R switch or the internal QSK-5PC.
Plus much, much more!
Operate/Standby switch lets you run
barefoot, but can instantly switch to full
power if you need it.
Has transmit LED; 12 VDC, 200 mA
accessory jack; 12 VDC keying relay for
solid state and tube rigs; tough, nearly inde-
structible Lexan over-aluminum front panel.
Two year limited warranty.
Made in the USA. Ameritron is the
proven leader in high power amplifiers.Call
your dealer for your best price!
AL-80B . . . 1 kW PEP output!
AL-80B
$
1399
Suggested Retail