All, I have an ENI power amp with what look like SD 1726 transistors in a class C configuration. The circuit is pretty standard, however there are 3 ohm resistors between the base and the emitters. C
All, I have an ENI power amp with what look like SD 1726 transistors in a class C configuration. The circuit is pretty standard, however there are 3 ohm resistors between the base and the emitters. C
Most RF power transistors have a highly reactive, usually capacitive at HF, input impedance. This is in addition to the resistive part of the impedance being highly non linear: it takes values from i
PS...ENI was a Rochester NY company, and RF Comm and ENI tech talk intermingled as the tech's were friendly. One of my tech's had a wife who worked there. We bought many of their amps to use in testi