RARSfest 2024
6:25
3 ай бұрын
How Superheterodyne Works
12:59
8 ай бұрын
Time Traveler World Band Radio OTR
8:09
BOOKS and FREE STUFF
4:43
Жыл бұрын
Radio Oscillator Tank Circuit
9:11
RCA Radio Model 4X555 First Look
7:50
Repair of FADA 175A 1924 RADIO
7:09
Пікірлер
@agustinramos7847
@agustinramos7847 2 сағат бұрын
me gustan tus videos, estoy aprendiendo a reparar mi radio con problemas recepcion en la banda AM.gracias y saludos desde Bs As. argentina¡¡¡
@OIE82
@OIE82 3 күн бұрын
Thanks for that. I haven't seen one of those yet so I wonder what the advantage would be in having an open loop secondary.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 3 күн бұрын
Thank you! Using the open winding as a capacitor is probable a way to get around a paten.
@OIE82
@OIE82 2 күн бұрын
@@AllAmericanFiveRadio Yes, of course!
@marcusbell5996
@marcusbell5996 3 күн бұрын
Beautiful explanation! Thanks you so much.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 3 күн бұрын
Thank you, and your welcome.
@cliffjones7868
@cliffjones7868 4 күн бұрын
What changes (modifications) could be made to have the same amount of LEDs as a GE Colorrama? (dial lights) 4 red and 3 green as far as resistor modifications. To replace the bulbs!
@AllAmericanFiveRadio
@AllAmericanFiveRadio 3 күн бұрын
GE Colorrama vrps.org/documents/ColoramaTuning.html
@HamzaKhwayre
@HamzaKhwayre 4 күн бұрын
شكرا لكم
@AllAmericanFiveRadio
@AllAmericanFiveRadio 4 күн бұрын
Thank you, and your welcome.
@qwertykeyboard5901
@qwertykeyboard5901 4 күн бұрын
0:51 I wish the Phico I'm working on was that clean. Ten trillion wires all tightly managed into the area of a penny. That Philco is PACKED! Such a pain...
@AllAmericanFiveRadio
@AllAmericanFiveRadio 3 күн бұрын
Good LUCK!!!
@qwertykeyboard5901
@qwertykeyboard5901 3 күн бұрын
@@AllAmericanFiveRadio It's.... Not going well. At all.
@adeltakla1124
@adeltakla1124 5 күн бұрын
Why you didnt test the oscillator transistor before removing it from the pcb?
@AllAmericanFiveRadio
@AllAmericanFiveRadio 3 күн бұрын
I did measure tha voltages on the transistor.
@mykedoes4099
@mykedoes4099 5 күн бұрын
Excellent Video 👍
@AllAmericanFiveRadio
@AllAmericanFiveRadio 5 күн бұрын
Thank you, and your welcome.
@davidjackson2115
@davidjackson2115 10 күн бұрын
Thanks. Interesting and well explained. Im Gods Gods Servant David - Isaiah 55 NIV and my focus is on Gods Kingdom - Actual thus my mental focus is on that. People like yourself are able to dedicate your full mental capacity to yr field - to see what i dont have the patience or focus to see ...efficiently.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 10 күн бұрын
Thank you.
@Selvaraj-ym2ce
@Selvaraj-ym2ce 11 күн бұрын
Thank you sir
@AllAmericanFiveRadio
@AllAmericanFiveRadio 11 күн бұрын
Thank you, and your welcome.
@hammadwahcantt3115
@hammadwahcantt3115 11 күн бұрын
Nicely explained
@AllAmericanFiveRadio
@AllAmericanFiveRadio 11 күн бұрын
Thank you, and your welcome.
@jsilva6359
@jsilva6359 12 күн бұрын
Quick question: What level of sensitivity should I expect for an All American Five radio? For a GE model 400 radio that I am restoring, the signal at the antenna needs to be above about -40 dBm (3 mV RMS into 50 Ohms) in order to hear the station clearly. This seems high.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 11 күн бұрын
So I guess your volume and sensitivity are low. Have you tested all the tubes? I’ll be glad to help in troubleshooting your radio. I would need te voltage at each plate of each Tube. My email is [email protected] make the subject GE400. The specification for the 12SA7 is below. 12SA7 frank.pocnet.net/sheets/127/1/12SA7.pdf
@GroverCricketDaisy
@GroverCricketDaisy 13 күн бұрын
Excellent presentation and very helpful very much appreciated regards Bill
@AllAmericanFiveRadio
@AllAmericanFiveRadio 12 күн бұрын
Thanks Bill!!! All the best, Rick.
@jorgemellooliveira9611
@jorgemellooliveira9611 13 күн бұрын
ótimo vídeo congratulações
@AllAmericanFiveRadio
@AllAmericanFiveRadio 13 күн бұрын
Thank you, and your welcome!
@fernandogigliotti2299
@fernandogigliotti2299 14 күн бұрын
Rick, could I get an email address to contact you. I wanted to sk some question and of course cover your time if you were available to do that. Please let me know. Thank you sir.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 14 күн бұрын
My email is [email protected]
@fernandogigliotti2299
@fernandogigliotti2299 14 күн бұрын
@@AllAmericanFiveRadio Thank you sir, sent.
@Fourty_7
@Fourty_7 14 күн бұрын
Thanks for this demonstration Sir.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 14 күн бұрын
Thank you, and your welcome!
@Chris_KS5KY
@Chris_KS5KY 15 күн бұрын
Any idea of the name of the Azimuth software he was using in this video?
@AllAmericanFiveRadio
@AllAmericanFiveRadio 15 күн бұрын
I'll ask Dave. Thanks.
@got2rock4
@got2rock4 15 күн бұрын
Awesome video 😎
@AllAmericanFiveRadio
@AllAmericanFiveRadio 15 күн бұрын
Thank you, and your welcome.
@GroverCricketDaisy
@GroverCricketDaisy 15 күн бұрын
What a great device thanks for sharing very impressive.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 15 күн бұрын
Great for matching 1920=50s equipment to solid state.
@GroverCricketDaisy
@GroverCricketDaisy 15 күн бұрын
Great impedance box and lots of memories for you thanks for sharing and very interesting
@AllAmericanFiveRadio
@AllAmericanFiveRadio 15 күн бұрын
Thanks.
@GroverCricketDaisy
@GroverCricketDaisy 15 күн бұрын
Thank you very interesting indeed.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 15 күн бұрын
Thanks, it is a useful chip.
@MonicaQ-ow7zw
@MonicaQ-ow7zw 15 күн бұрын
1SS86, the performance of ultrashort wave band is much better than 1N34A. pls go to my main page.
@MatejVelican
@MatejVelican 16 күн бұрын
Fell of the electronics train after I quit college for electrical engineering, looking back great decision for quitting college, bad for electronics projects. Been watching lots of similar videos to this on youtube, and I gotta say, this one might just get me back on the train 💪 Always wanted to play with transmitters and antennas, but as broke student never got to it because stuff costs money. As a tradesman, I finally have money for silly projects. Will tag you once I make video or something similar.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 16 күн бұрын
Experimenting is fun. When I make this video the RF coil was easy to get, that is no longer true. So I remaked two viceos on the AM transmitter and the FM transmitter. In both videos you make the coil. The links to the videos are below. MOSFET AM Transmitter Home Made Oscillator Coil kzfaq.info/get/bejne/btCGaNWXyJO1mHU.html FM Transmitter Home made Coil Build Demo kzfaq.info/get/bejne/f99ohdKdltS9XX0.html
@rohnkd4hct260
@rohnkd4hct260 17 күн бұрын
Very sloppy work.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 17 күн бұрын
And wrong parts too.
@GbodyEthan84
@GbodyEthan84 17 күн бұрын
I found one of fhese in my attack a lottle bit ago, looks like it hasnt been used in a very very long time, i almost want to fix it and lcean to see if it works
@AllAmericanFiveRadio
@AllAmericanFiveRadio 17 күн бұрын
Thank you. It is a beautiful and collectable radio. If the tubes are good they can be worth as much as the radio. If you are looking for local help in repairing your radio, I would contact a amateur radio club in your area. You may want to download my FREE ebook. Password is allamericanfiveradio kzfaq.info?event=channel_description&redir_token=QUFFLUhqa2hhVTRycWdJd1FUbTFCZWNmdGtQNlZCRmEzd3xBQ3Jtc0tuOFQ2bFhRcWdjdUdIcUREcnZFaHc0M2xURGhITVRuWDE2cGlDakdYUF9uODktNzc3TVRJTWdROUt6R3NLN2lla3hFS2lIM0RnOXR1dXFxMGx2cUNtWDhXb1Zvc2RCbGQxTThoendmN2E5R0lJdmI0Yw&q=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1HHmaWYr7UMACfmS4W5uL6PADoem2KlRp%2Fview%3Fusp%3Dsharing
@kevinhermi9861
@kevinhermi9861 17 күн бұрын
Just confused it looks lile the capacitor isnt grounding on the earth side? Wouldnt it ground and than have a negative charge on that plate?
@AllAmericanFiveRadio
@AllAmericanFiveRadio 17 күн бұрын
When the SCR fires it is like a wire, and that supplies the ground. Silicon Control Rectifier SCR Basic AC Circuit kzfaq.info/get/bejne/apt4Z62QuJuWiWg.html
@channel_98s
@channel_98s 19 күн бұрын
It sounds very well
@AllAmericanFiveRadio
@AllAmericanFiveRadio 18 күн бұрын
YES, it is a beautiful speaker!!!
@ivanmollo8495
@ivanmollo8495 19 күн бұрын
Muy bien explicado su video acerca del funcionamiento del receptor superheterodino, muchas gracias. CE1GWX, 73.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 19 күн бұрын
Thank you, and your welcome.
@arashyusefi1889
@arashyusefi1889 19 күн бұрын
Thanks 😊👍🙏💯
@AllAmericanFiveRadio
@AllAmericanFiveRadio 19 күн бұрын
Thank you, and your welcome.
@MrMaterpc
@MrMaterpc 20 күн бұрын
Thank you sir!, from Mexico. I appreciate your great video, it is very helpful. I have a Zenith Royal 500e that only has noise, but does not pick up radio stations. I'll be sure to follow in your footsteps. I will have beautiful memories of my childhood and my father when I hear music with her again. Thank you very much and my best regards to you.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 20 күн бұрын
Thank you Julio , I hope you can repair your radio. I hope this video helps. Let know what happens. ALL THE BEST!!!
@Big-hg5zf
@Big-hg5zf 24 күн бұрын
Can you explain how you’re biasing the 2N2222A transistor? What confuses me is how you determined the 33K resistor value and the -7.4VDC that it connects to (yes you said you measured the -7.4V, but that’s after you built the circuit.). To put a finer point on my question, why bias the 2N2222A with that resistor topology rather than the traditionally shown voltage dividers/diode biasing we see with class-B amplifiers in numerous online examples?
@AllAmericanFiveRadio
@AllAmericanFiveRadio 24 күн бұрын
Biasing an Audio Transistor kzfaq.info/get/bejne/gdqIeJqkmqrQk30.html How can a DIODE pass an AUDIO SIGNAL UNDISTORTED kzfaq.info/get/bejne/msqWpc540Kfaio0.html
@Big-hg5zf
@Big-hg5zf 24 күн бұрын
@@AllAmericanFiveRadio Thanks for the links (and I did watch them) but they do not answer my question. Maybe I didn’t ask the question clearly? So, some background: (1) I know how to bias a transistor’s base for an amplifier using a resistive voltage divider and also how to calculate the values of the resistor divider before building the circuit; and (2) you are not using that traditional topology for base biasing, instead you are tying the top of the resistor divider (33K and 9.4k=4.7K+4.7K) to the _OUTPUT_ of the push-pull pair before the DC blocking capacitor. My reframed quesiton: The output of the push-pull pair changes with the input signal to the 2N2222A as a consequence of the gain of circuit, i.e. the the DC offset being added to the input signal, at the base of the 2N2222A, will change with push-pull pair output, causing that delta to also be multiplied by the amplifier’s gain. This would, I think, cause nonlinearity in the amplifier and distort the signal, increasing THD. Was it just trial an error on how you selected the 33K and 4.7K resistors? Or did you actually compute the values? If it is the later, could explain your process for doing so?
@AllAmericanFiveRadio
@AllAmericanFiveRadio 24 күн бұрын
@@Big-hg5zf The purpose is simple, it is to get people to experiment.
@Big-hg5zf
@Big-hg5zf 24 күн бұрын
@@AllAmericanFiveRadio Alright, thank you for your time.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 24 күн бұрын
@@Big-hg5zf I have worked many years in several electronic labs with hardware and software engineers. These labs cost multiple millions. It would be wonderful if all circuits could be calculated, then you would not need the labs.
@GroverCricketDaisy
@GroverCricketDaisy 25 күн бұрын
Great demonstration and something to look out for thanks
@AllAmericanFiveRadio
@AllAmericanFiveRadio 25 күн бұрын
I made this video because a friend built my AM Transmitter. He said that it worked but he was getting a Hum. I asked him where he had his Transmitter set up. It was next to the Electrical Breaker Box. He moved the Transmitter and now no Hum. Thanks Bill
@GroverCricketDaisy
@GroverCricketDaisy 25 күн бұрын
Thanks for sharing this RCA tape recorder nice solid unit
@AllAmericanFiveRadio
@AllAmericanFiveRadio 25 күн бұрын
Thank you.
@jimmyb1559
@jimmyb1559 26 күн бұрын
I watched this video years ago. I remember we had this recorder when we were kids. I picked one up from eBay recently. It works but I think it needs a new belt. Have you ever had yours apart or replaced the belt? You sure did a great a job on it! Looks new! Thank you.
@AllAmericanFiveRadio
@AllAmericanFiveRadio 26 күн бұрын
I don’t remember if I replaced the belt. You can find a good replacement in a good hardware store. Take your old belt with you and look through the “O”Rings. Thank you, and your welcome!
@jimmyb1559
@jimmyb1559 26 күн бұрын
@@AllAmericanFiveRadio Great! I will check out the local hardware store. Thank you so much for the advice!
@GroverCricketDaisy
@GroverCricketDaisy 26 күн бұрын
Great tip really appreciate the effort you go to help us all out in the radio hobby community
@AllAmericanFiveRadio
@AllAmericanFiveRadio 26 күн бұрын
I'm glad to help. Im hoping this site help people for years. Thank you, Bill!
@tomcroley7084
@tomcroley7084 29 күн бұрын
I plan to go every year and then something happens. Maybe next year and I’ll look for a guy taking photos! Thx for showing what I missed. 73
@AllAmericanFiveRadio
@AllAmericanFiveRadio 28 күн бұрын
Tom i have missed several over the years. It is amazing how much equipment was on display. Thank you, and your welcome. 73
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Excellent explanation thank you
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
I hope the videos helped. Thanks!!
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Excellent video explaining back EMF thank you
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Thank you, and your welcome.
@kayboku7281
@kayboku7281 Ай бұрын
thanks for this! I have been looking into and trying to learn amplifier design for a while, this makes the actual fundamentals finally click!
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
I’m glad this video has helped!! Thank you, and your welcome.
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Hi Rick my question is regarding the choke coil. Does the coil stop the FR passing through it due to the magnetic field that it sets up and only allowing DC through? Thanks Bill
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Hey Bill, it is the Moving magnetic field that produces impedance. Here are two videos that mat help. Impedance, Back EMF, AC Resistance kzfaq.info/get/bejne/r5dhhsWevba9YWw.html Impedance Back EMF Practical Demonstration kzfaq.info/get/bejne/gNh5aqxqmL7eiZ8.html
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Thats amazing how that works
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
It is still fascinating!
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Wow really impressive
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Someone spent many hours listening to this Crystal Set.
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
What a treat to see this and the ingenious repurposing of a high tension coil.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
A friend had just asked me to find him a crystal radio. The next weekend at the Flea Market there it was. And it is a Beauty.
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Thats a great little build. Its amazing how much voltage is required to transmit with.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Yes it works very well!!!!!!
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
I wonder what heating the heat trace was doing to improve the reception? Interesting find.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
It wold not last the transistor is bod/
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Still laughing
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Yes, it’s still funny. Look for my video “The Group”
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Clever fix and thanks for sharing
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
They lasted longer than the door. THANKS!!!
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
This realy helps with understanding the relationship and calculations thank you very much.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Bill,, I'm glad it's helping!!!
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
Thanks its hard to get your head around positive and negative voltages on the same string. The demonstration really shows this well.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
THANK YOU BILL, I HOPE IT HELPS/
@GroverCricketDaisy
@GroverCricketDaisy Ай бұрын
A very thorough analysis of this circuit and very intersting indeed.
@AllAmericanFiveRadio
@AllAmericanFiveRadio Ай бұрын
Thank you Bill!!!