If you are not sure, do not attempt to connect a ground wire. First off Sorry for loses. If you plan on building several antennas, you should have no problem with this large roll of wire. If any of the tubes have a top cap with a wire connection, be careful when removing it — sometimes the top caps of the tubes have come loose with age and can be pulled off which often ruins the tube. If your equipment is clean, then it's up to the other party to take action to prevent them from getting on the ham band. Terry There once a was a man named Nation, Who worked for a radio station. If you want a good external loop antenna there's plenty of discussion to be had on that. After you have the circumference, divide by 6 if you are using 6 wires, or divide by 8 if you plan on using 8 wires for this project. Components as marked: 1 Antenna coils; 2 IF transformers; 3 oscillator coils; 4 filter choke; 5 field coil; and 6 output transformer.


Maybe you were digging around in the attic helping your parents downsize, and found their old wooden tube radio from many years ago stashed away. Or, perhaps you've inherited your grandparent's precious tube console — now a family heirloom — that stood as the centerpiece of their living room for many years. Even though they're ancient by today's standards, these old tube radios can almost always be brought back to life, and there's still plenty of broadcasts out there for them to receive! Not to mention, they just look so classy and have a presence few modern electronics can match. Fixing up a vintage radio is a little different from fixing up many other types of gear, since the entire field of electronics had only just been invented when they were first made. We were still learning the engineering and physics underlying all this new technology. Competing standards emerged and fell by the wayside, and huge advances were made in the span of only a few years — not to mention some vicious patent wars — which all mean that no two radios are alike. Even still, since radio was the only means of home entertainment for decades, there's plenty of service information out there to help you through the process, and there's nothing quite like the feeling of hearing a piece of history crackle back to life after a successful repair job. Over a series of articles, I'll be performing a full electrical restoration on a DeWald Model vintage radio from start to finish: evaluating its condition, performing the restoration work, and aligning and verifying its performance after service is complete. In this first article, I'll cover some tips for what to look for on your old radio to judge its condition, and do a full inspection of the internals to see what work will need to be done. Vacuum tubes operate on the principle of thermionic emission, where certain metals heated to white-hot in a vacuum will give off electrons. The flow of these electrons can then be controlled by charges placed on the tube's internal elements. The first practical vacuum tubes were invented in by Lee DeForest, who developed the "Audion" — the world's first triode capable of amplification. This ushered in the radio age, but it wasn't until about 20 years later that radio finally left the lab and made it to consumer's homes. Even then, most radios still operated on stacks of expensive batteries which had to be replaced often to deliver the high voltages necessary to operate.

Posted: Feb Wed 06, pm. There is a blue wire that comes out from within the radio and check this out on to the F tube radio antenna hookup.

I realize that G is ground and F is the antenna hookup. I decided to disconnect this blue wire and hook up my own dipole antenna. I can tell my antenna is making an effect based on how I move it. I decided to hook my AM antenna to these radoi. It's just a basic 5 turn, rqdio, loop antenna.

It's not making ANY effect at all. I'm trying to pick up better AM stations and am not https://domentri.xyz/articles/lirik-just-one-day-ost-marriage-not-dating.php much success. Posted: Feb Thu 07, am. The blue wire from under the chassis is a capacitively coupled connection to the AC line cord for FM only.

The terminals allow you to use an FM antenna using twinlead There is no connection typically for an external AM antenna. Tie one end of the coupling link to chassis via capacitor 0. It will not affect the FM connection. I'm not sure what size any personal ad online dating senseless 5-turn loop is but if its not resonant it would probably work better unwound Being non-resonant its simply a random piece of wire compromised into a smaller space.

If you want a good external loop antenna there's plenty of discussion to be had on please click for source. They can be link-coupled to radios which use an internal antenna by the method described. Depends on your needs. Posted: Feb Fri 08, am. Thanks for help.

The model is H There is a back panel loop article source the Zenith. If I have the blue cord connected to F, and I place my loop antenna across G and F, then am I already following your advice, with anetnna of not using radik cap that you mentioned?

That's probably the trick that I missed. Posted: Feb Fri 08, pm. Oh, I think I misunderstood you. I will need to find the ferrite rod loop inside and find the terminal that does not go to chassis. I could attach one terminal of my am external loop antenna to. The other terminal would connect to a capacitor and from capacitor to ground. Essentially Tube radio antenna hookup would be having two am loop antennas in parallel?

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