![]() The later version of the Titan had Russian tubes, that version does only -32dB IMD at best. The 3CX800A7 based version (the one shown here) has an IMD as low as -40dB, the best I have ever seen for amplifiers on the Ham market through the years. Later versions of the Titan had inferior Russian tubes to cut cost. It is by far the best amplifier Ten Tec ever came out with, and still beats almost every amplifier hands-down that is available on the market today. The amplifier was designed by Ten Tec for 1,5kW (carrier) legal output power. As you can see in the video, the amplifier easily reaches 2kW carrier (PEP it can do 2.4kW). Ten-Tec Paragon 585 HF Transceiver : Sold : Ten-Tec Triton IV Digital 544 HF Transceiver : Sold : Ten-Tec R9311 Speaker : Sold : Ten-Tec RX-320D PC Shortwave Receiver : Sold : Ten-Tec RX-340 Commercial Receiver : Sold : Ten-Tec RX-350 Commercial Receiver : Sold : Ten-Tec Scout 555/556 HF Transceivers. And the power supply has a massive Hypersil transformer capable of 4kW DC input power. Each tube is rated by the manufacturer for 1100 watts plate dissipation (=1200 watt RF power at 60% efficiency), so at 1500 watts legal limit the amplifier just loafs. The Ten Tec 425 amplifier uses two powerful 3CX800A7 ceramic triodes from Eimac, in parallel. Like I said the one shown here is in absolute mint condition, hardly ever used. The Ten Tec Titan model 425 covers all ham bands, 160 meters to 10 meters. The one you see here is mint and virtually unused. This is the Ten Tec Titan linear amplifier model 425, connected to a 2kW dummy load. ![]() ** If you want to skip to the actual operation quickly, go to 10:06 **
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