I am working on a 2970n2 for a friend of mine and I have some questions. I have the service manual for 2950/70dx, and most of the procedure is the same. My question is specified more toward the TX alignment of the IRF520 driver and dual finals. I looked up the Specs of the transistor but I would like to know what RCI recommends for these.
The radio gets VERY hot and only produces 150-175 watts. The voltage regulator get VERY hot as well. The funny thing is, while tuning the PLL, I had the mirror board remved and while transmitting for only 10-15 seconds at a time, the 8 transistor amp got pretty hot even though no RF was applied to it.
Any help appreciated.
The radio gets VERY hot and only produces 150-175 watts. The voltage regulator get VERY hot as well. The funny thing is, while tuning the PLL, I had the mirror board remved and while transmitting for only 10-15 seconds at a time, the 8 transistor amp got pretty hot even though no RF was applied to it.
Any help appreciated.