Search results

I was looking through one of the junk boxes today and found my first power supply for my first cb set. It's a big one.

Bad idea to drive the 250 with 100 watts. It will smoke the unobtainable transistors in the 250. Lower the deadkey from the radio enough to get 40 watts deadkey from the 250 and let it swing. No more than 15 to 20 watts pep into the 250. JMO

MFJ and Ameritron are affiliated if not the same. You get what you pay for.

Does anything still happen on 14.313? I haven't heard a soul there in a few years. Even 7.200 has quieted down. Dan from 7.200 had an amp for sale on QTH. Has he hung up the towel?

You can find a used Aston 50 for about the same price as the powermax. Linear power supplies are heavy and expensive but they are an investment.

I tried some chokes and ferrite but it didn't help. I'm sure there's a way to filter it but I threw in the towel.

Many people have good luck with them. The one I bought 6 or 8 years ago was noisy. My receiver had an s5 noise level with it turned on. I use it as a battery charger now.

If you don't have a scope switch your watt meter from average to pep. If the average reading is lower there is audio on the carrier or an oscillation problem.

I've thought about setting up a web sdr here but don't know where to start or what's needed. Is there a web sdr for dummies book?

Did you use an isolation transformer or at least DC blocking caps on the audio line?

High power is why most overlook the smaller coax. The spec sheet says the lmr195 is rated for 2.5kW peak power, has 2db loss at 890 (avg) watts on 30 mhz. 3db loss would be losing half your power. That's not acceptable to me. Lmr400 is rated for 16kW peak power, has .7db loss at 3330 watts on...

I have one if you're interested. I believe I still have the box but will have to look when I get home.

I've always used a single tone. A two tone test would not work. If you're talking about something different please give more details.

Man I've been there. A friend runs an electrical company and they've been slow because of the China Virus pandemic. I paid one of his guys to install a sub panel in the garage. I feel like a king being able to weld and dry clothes at the same time.

I bought one on Amazon. The first one had low power that turned into no power right out of the box. They sent a replacement that seems to be ok. It doesn't get used much though.

I was setting off a touch lamp a city block away. The owner of that lamp figured it out because he's a radio guy. We had a good laugh about it.

I had a thought yesterday. How many of these people would be in the street burning and looting if there was no Facebook? I don't think the majority of them would even know what happened. These don't seem like the kinds of people that sit down and watch the news after dinner.

I had plate supply on the brain. It's hard for me to even fathom that much filament current. I should have watched the video but I'm impatient. It's hard to speed read a video. :LOL:

Have you ever used an a99 or Imax 2000?

Typo?