In the first three installments of this series, we discussed whether or not an old transmitter was even worth fixing, followed by some techniques I ve used to repair high-voltage power supplies, ...

You work on transmitters every day. Have you ever removed a large tube socket for repair or replacement? It can be a daunting task. I hope you don’t have to do the job overnight when you are tired.

A standard early electronics project or kit has for many years been the construction of a small broadcast transmitter with enough power to reach the immediate area, but no further. These days that ...

Radio stations in the U.S. and Canada who upgrade from an older tube transmitter to a new Nautel solid state transmitter prior to January 31, 2020 are eligible for up to $10,000 in a “last tube ...

ALEXANDRIA, VA.—I remember writing a few years about the efficiency advantages of multi-stage depressed-collector IOT tubes used in digital transmitters. At the time, they were state of the art for ...

ALEXANDRIA, VA.—Recent advances in high-frequency transistors has led to solid-state UHF transmitters that challenge the power outage and efficiency of multi-stage depressed collector IOT designs. In ...

Series 38 consists of literature, data, and photos pertaining to different types and models of vacuum-tube type radio transmitters. It includes lists of vacuum-tube transmitters made by different ...

If you are into vintage electronics or restoring antique radio equipment you may be very disappointed with the content offerings on AM broadcast radio these days. Fortunately there is a way to get ...

If you're a KPFT listener who thought your ears suddenly detected something clearer and stronger about 90.1 FM over the weekend, it was not your imagination. Beginning Saturday night, the radio ...