"It's very unlikely any solid-state amplifier uses an input attenuator: Transistors and FET's just don't have that much gain."
The Ameritron ALS-600 has about a 15 ohm input impedance. Then they put a series 35 ohm resistor for matching and reducing gain. Phil - AD5X ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html