I am rebuilding an RS-12 console and cannot find any part number on the channel ON/OFF bulbs. I have a copy of the manual, but cannot find the bulb number in it. The bulbs remaining in the console have no number printed on them either. Can someone help??!! Thanks! They are plain old 73F in the one ...

Dale H. Cook wrote: ↑

Wed Jul 10, 2019 7:03 am

Audio Frequency Proof-of-Performance Measurements" published in 1877. I have posted the full proof instructions at:

And they used candles to proof read it... Edison took 2 more years to invent the light bulb.

SOLVED !!! Inside the PA Harmonic Filter / Antenna Tuning Unit of the transmitter there was a burned up wire that became disconnected. On Coil L3 there is a 1/4-20 bolt that connects three wires together, the nut wasn't real tight on this bolt and the wire lugs connected with it and the bolt/nut it...

I have never seen that in any of the 6's of 5e's that I have cared for but it sounds like something in the tuning network or lightning arc gap has gone bad. The directional coupler is between the combiner output/bandpass filter and input to the tuner. IIRC, it is a pretty simple layout but a real pa...

If you can find a place to install even an electrically short vertical radiator and depending on soil conductivity at the site, it may not take much of a radial ground system to make a fairly low-R path to r-f ground for it. Below is a NEC4.2 analysis of such a system, showing ground path R variati...

Had to work on a site once with no ground system --or land. 235' self-support tower on 1330. When it was built in the 50's had full ground system. Then a bridge approach sliced off a bit. Then the owners sold off the land around it--except for a 100' X 25' lot with the tower and transmitter shack. ...

I know of at least one station who used this on an emergency antenna STA and had decent luck with it. You don't need a tower, you don't need a "normal" ground system (this uses an 80 radial, 30-foot radius ground plane) and it was designed for continuous duty. http://www.theradiosource.com/products...

Good morning, One of my long time clients and friend has lost his TX site following the death of the land owner and land owner's daughter jacking the rent up 5x... Their studio has little space available for an L or T antenna not to mention that there are 2 large churches, town square and the local ...

I have a RF client that is still running a version that predates me... Probably early 90's in what looks like DOS. I have never had to touch it since a guy at the station is intimately familiar with it and keeps it limping along. One of my clients has two DOS Smartcaster chassis sitting in the base...

I replied a couple of days ago but it apparently didn't save... I use Automatic Call Recorder Pro to record all calls on my cell for memory jogging, notes and screwing with scammers. It works great on my Samsung S7+ but didn't work on a previous Motorola phone due to a restriction against recording ...

http://smartsbroadcast.com/library/ Here you'll find manuals for the current Skylla product and the older Smartcaster 2002 product that merged the DOS Smartcaster program with On Air Digital's RS-HD Linux-based audio playout...the Smartcaster software runs in a DOS emulation window within Linux. If...

Is this what you are looking for?

https://www.cgould.com/75-microsecond-p ... sis-curve/

Another possibility would be Ideco-Dresser but it probably is a Blaw-Knox. I seem to recall seeing what was supposed to be a ID 4 legged self supporting tower...

For the FCC a cost of doing business but for the little mom & pop station, well serving their market, a months electric bill.

I just had an SSD replaced and the unit checked and I thought the total was very reasonable... I still despise the hodgepodge that is the programming pages in the DasDec units. This particular unit apparently had a preliminary or unreleased firmware that refused to update using the normal methods. T...