AMERITRON AL-80B Spécifications télécharger pdf (Page 2)

88 AMERITRON...the world’s high power leader!

AL-811 . . . 600 WATTS . . . $799!

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 . . .

Ameritron’s AL-811 linear

amplifier gives you plenty of

power to bust through QRM!

Yo u 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 out-

let -- no special wiring needed.

Yo u get three tough 811A

transmitting tubes, extra heavy

duty power supply, all HF band

coverage, pressurized ventilation,

tuned input, dual illuminated

meters, adjustable ALC and much

more for an incredible $799!

The First 600 Watts

makes the difference

The AL-811 gives you 600

Watts PEP output -- that’s near-

ly 2 full S-units over your bare-

foot rig. That could mean the

difference 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 log some

of those stations first.

All band, all mode Coverage

AL-811 covers all HF

bands. 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 continuous carrier modes

like RTTY, SSTV, and FM.

The low cost 811A tubes

resists failure because . . .

First, they’re constructed with

widely spaced elements that

minimize the chance of ele-

ments touching and causing a

short -- even if the plate gets

hot enough to melt.

Second, they use a directly

heated thoriated

tungsten filament

cathode that pre-

vents the elec-

tron emitting

layer from

instantly stripping off -- even if

mistuning causes a sudden,

severe current overload.

The Ameritron AL-811 is

excellent for the newcomer

because it’s tough enough to

withstand momentary mistun-

ing. And the tubes are so inex-

pensive that you can replace

one for mere pocket change.

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 transformer with a high

silicon steel core weighing a

hefty 17 pounds.

A full wave bridge using

67.5 mfd of total capacitance

(four 270 ufd, 450 volt capaci-

tors) 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 car-

bon composition resistors

that can open and cause

filter capacitors to

explode or fail.

Ameritron’s 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

provides a 50 Ohm load for

your rig. Even fussy solid state

rigs can deliver their full drive

to the AL-811.

Low loss slug tuned coils --

tunable 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 has been carefully

designed for optimum Q on

each band and built with top

quality RF components.

The result is peak perform-

ance over each band, wide

impedance matching range and

exceptionally smooth tuning

with efficiencies close to 70%.

Even a 3:1 SWR load won’t

damage tubes/tank components.

A ball bearing vernier

reduction drive makes plate

tuning safe, precise and easy.

A quiet blower pressurizes

the cabinet with a large volume

of air flow. It keeps the 811A

tube temperature well below the

tube manufacturer’s rating --

even with a key down carrier at

400 Watts output -- without the

overwhelming noise of over-

sized fans.

Two illuminated meters

give you a clear picture of your

AL-811 operating conditions so

you can tell right away if some-

thing is wrong.

The Grid Current meter

continuously checks for

improper loading. The other

meter switches be-tween high

voltage and plate current to

warn of abnormal conditions.

Exclusive Adapt-A-Volt

power transformer

Too high of 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 trans-

former has a special buck-boost

winding that lets you compen-

sate for stressful high line volt-

age and performance robbing

low line voltage. Your compo-

nents last longer and gives you

peak performance -- regardless

of your line voltage.

Plus much, much more . . .

An Operate/Standby switch

lets you run barefoot, but you

can in-stantly 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.

Back-pulse cancelling diode

protects the rig keying circuit.

Shielded RF compartment.

One year limited warranty.

Compact 16Dx13

/4Wx8 H”.

30 lbs. UPS shippable, has

transformer installed and wired

for 120 VAC. Draws 8 amps at

120 VAC. Export model is AL-

811X wired for 240 VAC.

AMERITRON

116 Willow Road, Starkville, MS 39759

Tech: 662-323-8211•Fax: 662-323-6551

www.ameritron.com

AL-811

799

Suggested Retail

Inside

view

of the

AL-811

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