Radix These are about the simplest, no-nonsense distribution amplifers on the market. Made exclusively for BSW I believe. A simple +/- 15V supply with two-three tab regulators and 34- NE5534’s. Yes, 34 of them. This one needed a -15V regulator. […]
Marti Electronics At one time you couldn’t step foot in a radio station without finding something “Marti”. In this instance it’s a STL-10 95oMhz Studio-Transmitter link transmitter. These units are getting up there in age, with the beige colored units […]
Transmitters! These days you can put 10kW of FM on the bench to repair. Fun times. Nicom NT250. In this case the NT stood for “not transmitting”. Nicom packs almost everything but the PA on a single board. […]
Valley Audio 401 Mike processors. Long out of production but they still get the job done. Mountain Dew. It’s always Mountain Dew. Most equipment has a weak spot and this is the 401’s. The voltage regulator […]
Symetrix 528E Mike Processors. These are good sounding units but switch failure is common. Depending on which switch, the unit can stop functioning entirely. Often cleaning them with a good contact cleaner is enough to restore things, other times you […]
Directional antennas need some form of monitoring and this unit was a best-seller for years. It was a huge improvement over the RCA and Andrew units that preceded it. Stable and reliable. This one had a few odd problems. […]
These are easily my favorite Exciters to rebuild, the Broadcast Electronics FX Series. 30(left) and 50(right) Not much difference between them other than power output and cosmetic changes. The FMO module on […]
Somewhere under that dirt is a Harris THE-1. Late 80/s early 90’s these were the replacement for the MS/MX series. Not much different other than the addition of a 50W power amp. Problems: Random AFC unlocks, failed multimeter, […]
Got a call that the station’s mod monitor was displaying all wrong. Large amounts of carrier shift, excessive negative peaks, none of which were evident with a scope connected to the transmitter sample port. Bad monitor! No. Bad RF amp! […]