I instructed software classes for engineers over ten years. I also developed these software course. so I found out what worked and what didn't work real quick.
Another simple but precise explanation of tube radio circuitry Rick. New or experienced, young or old, this gives basic knowledge all should know. Thanks bud.
Great explanation!! I always tell anyone wanting to get into RF electronics, that you need to have a good understanding of how old tube radios work. So many new hobbyists have no idea where the signal path goes, and how it is modified along the way. Keep up these clear and concise explanations. You're a great resource 😊
So well explained. Just adding your arrows obviated the need to keep it in visual memory while you described the circuit. So helpful. So I subbed. Thank you
Rick many thanks for the very clear and concise explanation. Very excellent. Yes I too would like to better understand how the AVC works in an AA5. Thank you
This helped tremendously with replacing a volume control on a Philco 39-17. The original part was completely worn out, and I don't know if it was a tapered pot or not. Also, it rotated CCW from off to full. The new (audio) pot rotates CW from off so I reversed the outermost two wires. Am I understanding this correctly? It plays well, but the strong stations seem to require only a very small increase in the volume control. Thank you for the excellent videos. I learn something new every time!
Hi Rick, thanks for the explanation. I just would like to understand why audio frequency (signal) won't pass through 0.0002uf cap to ground but will pass through the other cap 0.0005uf just before the pot?
I have a few videos that will help you understand capacitors and coils and frequency. Capacitive Reactance and Frequency Demo ua-cam.com/video/S5_7gGHxVyQ/v-deo.html Impedance and Frequency, Oscilloscope Demo ua-cam.com/video/TRSNKwtUy8g/v-deo.html Capacitors, DC, AC, and Frequencies ua-cam.com/video/YfJKNSkz_Lk/v-deo.html Audio Coupling Capacitor, how it Functions in a Circuit ua-cam.com/video/PAPnwX6YiIM/v-deo.html Capacitors, DC and AC Current ua-cam.com/video/NInt1Ss3vQ4/v-deo.html
Thanks! Concise, clear explanation! Have you ever done a video on automatic level control. I'm plugging an external source into the gram sockets on my Cossor Melody Maker 520 but the ALC is not muting the radio signal
If I'm not mistaken you have a video on why there is still volume with the control closed. I have two radios that do this and they have been recapped and when the volume control is closed there is zero resistance to ground. I believe it was an issue with AGC but I can't remember for sure. Which video explains this situation? Thank you for your work. Your an excellent teacher.
Thank you. If the volume does not go off all the way, the volume control is not going all the way down to zero ohms. I;m not sure if I mentioned that in a video.
@@AllAmericanFiveRadio Okay. On the vintage radio group in Facebook, someone had a problem with what looks like the exact same circuit. The volume did not vary no matter the position of the control. Your video explains that circuit perfectly.
Hello I downloaded your book but I have a question. I'm working on a hallicrafters S38A radio which I think is an AA5 radio. Just recapped it. Added a fuse and polarized cord. The radio works on all bands but If I hold an insulated screwdriver and I just tap lightly on the chassis I get static on the speaker speaker. Any ideas where I should look? Ty!!
@@AllAmericanFiveRadio ty you so much for your help!! I watched your video today about the car accident etc.... thank God you are ok!! I really appreciate your help.. I am learning all the time.. mike
I like how you break down the circuit into it's simplest form for explanation of the function Rick.
Thank you
You're a natural teacher Rick. I don't think i could put something together as clear as you have here. Great job!
Thank you Don.
I instructed software classes for engineers over ten years. I also developed these software course. so I found out what worked and what didn't work real quick.
Another simple but precise explanation of tube radio circuitry Rick. New or experienced, young or old, this gives basic knowledge all should know. Thanks bud.
Thanks Carl.
Great explanation!! I always tell anyone wanting to get into RF electronics, that you need to have a good understanding of how old tube radios work. So many new hobbyists have no idea where the signal path goes, and how it is modified along the way.
Keep up these clear and concise explanations. You're a great resource 😊
Thank you i'll try.
Also the concepts around old tubes are not limited to radios
Similar concepts are used for electron guns, crt, old style op amps etc
Great explanation.
Thank you.
So well explained. Just adding your arrows obviated the need to keep it in visual memory while you described the circuit. So helpful. So I subbed.
Thank you
Thank you, and your welcome.
Great explanation. Thanks.
Thank you.
Rick many thanks for the very clear and concise explanation. Very excellent. Yes I too would like to better understand how the AVC works in an AA5. Thank you
Surely a good explanation..
Thanks.
Thank you.
What a brilliant video and explanation. Really appreciate the time you spend putting it together. What a great teacher !!! Thanks
Thank you.
Thank you for the great dissemination work you do, we learn a lot from your videos, thanks again!!!
I’m glad you find my videos useful.
Thank you, and your welcome.
Awesome explanation.... you made it too easy to understand...well done.
THANKS!!!
Excellent job as always Rick !! You made it clear and to the point.
Thank you.
Yea man u just put that all together nicely for me don't stop 👍
I'm glad the video helped.
Very well put Rick. Thanks for posting.
Thank you.
The use of two different colors for the two signals really increases the understanding
Glad the video helped. Thank you.
Great video! Thanks for posting.
Thank you.
Excellent explanation!!!
Thank you.
Excellent tutorial!
Thank you.
Another great video!
Thank you.
Thank you I’m not an expert but I understood what you said 👍🏼
Thank you.
This helped tremendously with replacing a volume control on a Philco 39-17. The original part was completely worn out, and I don't know if it was a tapered pot or not. Also, it rotated CCW from off to full. The new (audio) pot rotates CW from off so I reversed the outermost two wires. Am I understanding this correctly? It plays well, but the strong stations seem to require only a very small increase in the volume control. Thank you for the excellent videos. I learn something new every time!
I'm glad you found this video useful.
Thank you, and your welcome.
Hi Rick, thanks for the explanation. I just would like to understand why audio frequency (signal) won't pass through 0.0002uf cap to ground but will pass through the other cap 0.0005uf just before the pot?
I have a few videos that will help you understand capacitors and coils and frequency.
Capacitive Reactance and Frequency Demo
ua-cam.com/video/S5_7gGHxVyQ/v-deo.html
Impedance and Frequency, Oscilloscope Demo
ua-cam.com/video/TRSNKwtUy8g/v-deo.html
Capacitors, DC, AC, and Frequencies
ua-cam.com/video/YfJKNSkz_Lk/v-deo.html
Audio Coupling Capacitor, how it Functions in a Circuit
ua-cam.com/video/PAPnwX6YiIM/v-deo.html
Capacitors, DC and AC Current
ua-cam.com/video/NInt1Ss3vQ4/v-deo.html
Nice explanation. Thanks.
Thank you.
Thank's Rick!
Thank you.
Great Video!
Thank you.
Thanks! Concise, clear explanation!
Have you ever done a video on automatic level control. I'm plugging an external source into the gram sockets on my Cossor Melody Maker 520 but the ALC is not muting the radio signal
He sure has, and it's just as excellent: ua-cam.com/video/NUerOOaKFP8/v-deo.html
@@RapperBC Awesome! Thanks for link.😁👍
@@paulgee6111 sure thing, you're most welcome!
Thank you.
If I'm not mistaken you have a video on why there is still volume with the control closed. I have two radios that do this and they have been recapped and when the volume control is closed there is zero resistance to ground. I believe it was an issue with AGC but I can't remember for sure. Which video explains this situation? Thank you for your work. Your an excellent teacher.
Thank you.
If the volume does not go off all the way, the volume control is not going all the way down to zero ohms. I;m not sure if I mentioned that in a video.
Thanks! Was this associated with an volume control that did nothing question on the facebook group?
I have a Facebook but have not looked at it in over a year.
@@AllAmericanFiveRadio Okay. On the vintage radio group in Facebook, someone had a problem with what looks like the exact same circuit. The volume did not vary no matter the position of the control. Your video explains that circuit perfectly.
Hello I downloaded your book but I have a question. I'm working on a hallicrafters S38A radio which I think is an AA5 radio. Just recapped it. Added a fuse and polarized cord. The radio works on all bands but If I hold an insulated screwdriver and I just tap lightly on the chassis I get static on the speaker speaker. Any ideas where I should look? Ty!!
I would check capacitor C36 0.25uF to make sure that it is installed properly.
@@AllAmericanFiveRadio ty you so much for your help!! I watched your video today about the car accident etc.... thank God you are ok!! I really appreciate your help.. I am learning all the time.. mike
Brilliant
Thank you.
Thanks 😊
Thank you.
I like it , Thank You
Thanks!!! Glad the video helps.
What's interesting are all the different ways the AA% were done. I have a Wards Airline radio missing that who leg with C8A all together.
Thank you, hope you can get it working.
I miss the days when electronics was "human":)
I like 1920s radios.