Members h7m1 Posted September 27, 2020 Members Share Posted September 27, 2020 For sale is a Ameritron AL-1500 Linear Amplifier lightly used but 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: Specs: 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 Specifications: 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$5200 shipped and insured If you are interested in this please feel free to reach me via PM Or email h7mhas at gmaill dot com Thanks for looking. Link to comment Share on other sites More sharing options...
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