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Author Topic: FS: Ameritron AL-1500 Linear Amplifier  (Read 404 times)

audrey wills

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FS: Ameritron AL-1500 Linear Amplifier
« on: December 11, 2022, 02:01:11 AM »

Offered for sale is a Ameritron AL-1500 Linear Amplifier lightly used in excellent working condition.
Full power output of 1500+ watts continuous TX confirmed on all bands, provide maximum legal HF output power and more! Using the Herculean 3CX1500A/8877 ceramic tube with its high power gain the AL-1500 needs only 65 watts of drive from your transceiver to deliver the goods.
Efficient operation is provided by a forced-air system with tube chimney, using a commercial grade die-cast ball bearing blower for maximum tube life. The tube is further protected by time delay starting and automatic over-current shutoff to remove drive power if the amplifier is mistuned. You get full legal power output from a whisper quiet desktop linear that covers all bands, 160-15 Meters, including WARC and MARS at 80% of full output set to nearest amateur band. The 10 and 12 meter bands are available with user modification. 50-ohm broadband Pi-Network tuned input with slug-tuned coils is used. Even fussy solid state transmitters deliver full power! A carefully designed Pi / Pi-L output network using the optimum Q for each band with Vernier ball drive controls gives smooth tuning, wide matching range, full band coverage, and peak performance at all power levels. These amplifiers provide 1500 watts output (1/2 hour continuous carrier) and 2500 watts (30 second continuous carrier and 2500 watts-plus 30 minute PEP two-tone test). You get all this power, plus, 65% efficiency, inrush current protection, multi-voltage transformer, QSK compatibility.

More details of the Amplifier:
Maximum drive power permissible: 100 Watts
Typical drive for full power output: 65 watts
Power Supply circuit type: Full wave bridge rectifier, capacitor input
Tube Warm-up time: 180 seconds
ALC: Negative going, 0-20V, adjustable phono jack
Efficiency CW: Approx. 67%
Efficiency SSB (envelope crest): 67%
Keying: Requires relay closure or sinking to ground of 12 VDC at 100 mA phono jack

Line Cord NEMA Plug:240 Vac, 6-15P
Amplifier Type:Tube
Amplifier Band Coverage:160-15 meters
Amplifier Power Output PEP:2,000+ watts
Amplifier Input Power:65 watts
Amplifier Supply Voltage:240 Vac
Maximum Line Current:15 A
External Power Supply:No
Amplifier Width:17.000 in.
Amplifier Height:10.000 in.
Amplifier Depth:18.500 in.
Amplifier Weight:77.00 lbs.
The grid current meter provides continuous reading of the critical grid current and indicates proper, safe amplifier operation. The other meter can be selected to read Plate Voltage, Plate Current, Peak RF Watts, or ALC. A SSB/CW selector switch chooses bias voltage for best linearity on SSB or lowest dissipation on CW. The Operate/Standby switch, in Standby, maintains the tube’s filament and plate voltages while allowing “barefoot” operation. They include a 12 volt DC auxiliary jack and an “XMT” LED to provide indication of proper amplifier keying by the exciter.

Asking Price for this is USD$5500

please feel free to reach me via PM Or email
h7mhas at gmail dot com

Thanks for looking.

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FS: Ameritron AL-1500 Linear Amplifier
« on: December 11, 2022, 02:01:11 AM »

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