AMERITRON AL-80B Specifications download pdf (Page 2)

AL-811 . . . 600 WATTS . . . $649!

More hams use Ameritron AL-811 amplifiers than any other amplifier in the

world . . . The AL-811 has earned a worldwide reputation for legendary quality,

flawless performance, proven reliability and superb customer service . . .

2 http://www.ameritron.com

Ameritron’s AL-811 linear

amplifier gives you plenty of

power to bust through QRM!

You get a quiet desktop lin-

ear that’s so compact it’ll slide

right into your operating posi-

tion -- you’ll hardly know it’s

there . . . until QRM sets in.

And you can conveniently

plug it into your nearest 120

VAC outlet -- no special

wiring needed.

You get three tough 811A

transmitting tubes, extra

heavy duty power supply, all

HF band coverage, pressur-

ized ventilation, tuned input,

dual illuminated meters,

adjustable ALC and much

more for an incredible $649!

The First 600 Watts

makes the difference

The AL-811 gives you 600

Watts PEP output -- that’s nearly 2

full S-units over your barefoot rig.

That could mean the differ-

ence between hearing, “You’re Q-

5 armchair copy” and “Sorry,

can’t copy you, too much QRM.”

Now you won’t have to stand

aside while the “big guns” steal

your DX. You’ll be able to log

some of those stations first.

The AL-811 gives you a pow-

erful punch at a price that’s easy

on your wallet.

All Band, All mode Coverage

AL-811 covers all HF bands.

There’s no compromise on WARC

and most MARS bands -- you get a

100% rated output.

Operate AL-811 on all modes.

Get 600 Watts output PEP SSB and

500 Watts output CW. You even get

300 Watts on demanding continuous

carrier modes like RTTY, SSTV, FM.

How the low cost 811A tube

resists premature failure -- even

when your amplifier is mistuned

First, they’re constructed with

widely spaced elements that mini-

mize the chance of elements touch-

ing and causing a short -- even if the

plate gets hot enough to melt.

Second, they use a directly heat-

ed thoriated tungsten filament cath-

ode that prevents the electron emit-

ting layer from instantly stripping off

-- even if mistuning causes a sudden,

severe current overload.

The Ameritron AL-811 is excel-

lent for the newcomer because it’s

tough enough to withstand momen-

tary mistuning. And the tubes are so

inexpensive that you can replace one

for mere pocket change.

The Ameritron advantage:

Extra heavy duty power supply

gives you peak performance

year after year

The heart of the AL-811 power

supply is its heavy duty power trans-

former with a high silicon steel core

weighing a hefty 17 pounds.

A full wave bridge using 52.5

ufd of total capacitance (four 270

ufd, 450 volt capacitors) produces

1500 Volts under full load and 1700

Volts no load. That’s excellent high

voltage regulation!

Rectifier diodes are rated for a

massive surge current of 200 amps--

won’t blow even if you accidentally

short the high voltage supply.

Wire wound, 7 Watt, 50 K Ohm

equalizing resistors safely protect

each filter capacitor -- not 2 Watt,

100 K Ohm carbon composition

resistors that cause filter capacitors

to explode or fail.

The Ameritron AL-811 power

supply is built tough so you get peak

performance year after year.

Tuned input provides

excellent load for any rig

A Pi-Network tuned input pro-

vides a 50 Ohm load for your rig.

Even fussy solid state rigs can deliv-

er their full drive to the AL-811.

Low loss slug tuned coils -- tun-

able from the rear panel -- let you

optimize performance. High quality

low drift silver mica capacitors

maintain proper tuning.

Output tank:

Optimum Q on each band

The low loss pi-network output

tank of the AL-811 has been careful-

ly designed for optimum Q on each

band and built with top quality RF

components.

The result is peak performance

over each band, wide impedance

matching range and exceptionally

smooth tuning with efficiencies close

to 70%. Even 3:1 SWR load won’t

damage tubes or tank components.

A ball bearing vernier reduction

drive makes plate tuning safe, pre-

cise and easy.

Quiet pressurized

ventilation keeps your

tubes safely cooled

A quiet blower pressurizes the

cabinet with a large volume of air

flow. It keeps the 811A tube temper-

ature well below the tube manufac-

turer’s rating -- even with a key

down carrier at 400 Watts output --

without the overwhelming noise of

oversized fans.

Two illuminated meters

Two illuminated meters give you

a clear picture of your AL-811 oper-

ating conditions so you can tell right

away if something is wrong.

The Grid Current meter continu-

ously checks for improper loading.

The other meter switches between

high voltage and plate current to

warn of abnormal conditions.

Ameritron exclusive Adapt- A-

Volt

power transformer

Too high line voltage stresses

components and causes them to

wear out and fail. Too low line

voltage causes a “soft tube” effect --

low output and signal distortion.

Ameritron’s exclusive Adapt-

A-Volt

power transformer has a

special buck-boost winding that lets

you compensate for stressful high

line voltage and performance rob-

bing low line voltage.

This makes your components

last longer and gives you peak per-

formance -- regardless of your line

voltage.

Plus much, much more . . .

An Operate/Standby switch lets

you run barefoot, but you can

instantly switch to full power if

needed.

A transmit LED tells you when

your rig is keying your AL-811.

A 12 VDC keying relay makes

it compatible with all solid state and

tube rigs. A built-in back-pulse

cancelling diode protects your rig’s

keying circuit.

Shielded RF compartment.

One year limited warranty.

Compact 16Dx13

Wx8H inches.

30 pounds. UPS shippable.

Shipped with transformer installed

and wired for 120 VAC. Draws 8

amps at 120 VAC. Export model

AL-811X wired for 240 VAC.

Includes 10 and 12 meters.

Made in the USA

Made in USA. At Ameritron,

we don’t just ship amplifiers, we

build them to last.

Ask a ham about us . . .

Ameritron has earned a world-

wide reputation for legendary quality,

flawless performance, proven relia-

bility and superb customer service.

Call your dealer for

your best price!

Get 600 Watts of real power and

the best value for your money. Order

your AL-811 today.

800 WATTS . . . $799!

Ameritron gives you four 811A tubes, 800 Watts for the

same price as the competitor’s 3 tube 600 Watt unit . . .

Why settle for less power and pay more money?

Only the Ameritron

AL-811H gives you four

fully neutralized 811A

transmitting tubes. You

get absolute stability and

superb performance on

higher bands that can’t be

matched by un-neutralized

tubes.

Ameritron mounts

the 811A tubes vertically

-- not horizontally -- to

prevent hot tube elements

from sagging and shorting

out. Potentially damag-

ing horizontal tube

mounting by competing

amplifier companies requires special 811A tubes to retard sagging and shorting.

Quiet, powerful computer grade blower draws in plenty of cool air. It pres-

surizes the cabinet and efficiently cools your 811A tubes. Our air flow is so

quiet, you’ll hardly know it’s there -- unlike noisy, oversized blowers.

Efficient, full size size heavy duty tank coils, full height computer grade

capacitors, heavy duty silicon power transformer, slug tuned input coils, oper-

ate/standby switch, transmit LED, ALC, dual meters, QSK compatibility with

Ameritron’s QSK-5 plus much, much more!

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AMERITRON AL-80B Specifications Page 2

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