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At the moment I do not have a 922 meters available but I usually make them up when one is requested. I only make the Ip meter since it only serves one purpose unlike the multimeter which does 3 things. It's basically a mechanical drop in replacement but does require changing R7 on the meter...
Honorable work but a few corrections. The SB-220/1 meters are 1400 ohms and 200ua and the FS voltage is .280v FS. A true "replacement" meter is one that looks pretty much exactly like the original and can barely be discernible unless one is purposely looking. Any other meter is just a " add...
No doubt. My question remains, who do people that do not have call signs talk to on 75 and 40 meters? Unless they bootleg another hams call without them knowing. OR...do a group get together and talk to each other on the ham bands themselves and not talk to legal hams? This guy has a...
It's very simple, when asked him to provide a call sign, he can't. A search of his name on the FCC site or QRZ turns up nothing. Rest assured he is not.
Yes, correct, It was always my understanding that it was up to a icensed ham to not make contact with anyone not using a proper call sign. You would be required to end transmissions with that person if this was the case. This is why I wonder who these people talk to on the ham bands. I don't...
Can somebody tell me? I know a guy, not well though and he is a CB'er. He is NOT a ham. He has all ham equipment and amplifier. Claims he loves 40 and 20 meters and does "CB" too. Tell me, who talks to somebody like this on the ham bands? Is there a group of these kinds of operators...
Well only partially true. Open filament is the only sure test for a meter and maybe if the tube has a hard G-F short, but most G-F shorts more often than not, won’t show on a meter. This is because most G-F shorts only show up when the filament is heated and migrates ( moves) and touches the...
Can you give a make and model number of the tube tester you used to test a 3-500z. Thanks. Now that we are beyond the tube being bad the next step would be to "at least" check the rectifier diodes and see if there is a shorted one. Very easy to do. Then the HV secondary can be easily isolated...
Check the diodes, that is easy enough to do, takes 2 minutes. Then isolate HV secondary from the rectifier and see what happens. If fuse blows then, its a bad transformer. If not then probably a bad filter caps.
Have you taken the tube out of the amp and turned the amp on with no tube in it???? This is the first thing you do when something like this happens. YOU MUST remove the tube completely and turn the mp on and see if the fuse blows. You CAN NOT test for a bad tube with an ohm meter, Can't...
The 7300 only takes -4-0v, the Ameritron can supply up to -20v so you have to be able to dial the voltage properly. The correct pot should be installed. You could easily run the amp without ALC connected just set your power output on the radio no more than the power you want the amp to produce...
Why in this day and age would anyone still deal with expensive wimpy sweep tube type amps when newer tubes made for RF use are cheaper and will make much more power? A pair of 572b tubes will blow any of these sweep tubes away or a single 3-500.
Amplifiers running old TV sweep tubes should be avoided like the plague!!! It is crazy to buy any amp with sweep tubes these days. You are much better off having an amp use something like a 3-500z or a pair of them or even an 8877, An 8877? Now your talking big time!! Ever thought about...
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