Code Practice Oscillator

Code Practice Oscillator - Part 2

Рет қаралды 3,384

Күн бұрын

Let's see what we have now that it is in the case. I want to try some old and newer transistors. Finally we clean up the tone by converting it to a true Hartley Oscillator.

Пікірлер: 29

@thomas-i5o7h 3 ай бұрын

I have a key just like the one you have in the video. My dad was a ham for a great many years and did cw all the time. When he passed away, I fortunately got to take his key home with me. I remember watching and listening when he was on the air. My brother who is also a ham, has dad's QSL cards up on his wall in his shack. Sooo many memories of all those years sitting the shack with the both of them making contacts all over the world !!!

@duncanmckenzie2815 3 ай бұрын

Greetings from Australia! Thank you very much for another fascinating video. Your videos are always immensely interesting and take me back to the Golden Age of radio and electronics. Your channel is definitely one of my favourites. Thank you, Sir. And may you produce many more.

@radioguy19510 3 ай бұрын

I have been watching your videos (and Mr. Carlson's Lab) for years now and I am always anxious to see the next one. Kind of like waiting for the next issue of 73 magazine! Thanks!

@W1RMD 3 ай бұрын

Great video! Thanks for making this interesting and entertaining. I enjoyed seeing the 1960-70's pictures.

@ampwerx.canada 3 ай бұрын

Thanks Mike. Great video with lots of theory. When I was 7 or 8 my parents bought me the Transistor Radio & Broadcast System you show in the outro. Remco brand. That set probably more than anything else got me hooked on electronics.

@MIKROWAVE1 3 ай бұрын

Remco! Ha I had the Crystal Radio kit they made.

@ampwerx.canada 3 ай бұрын

@@MIKROWAVE1 Good old Remco. The gateway "drug" to Heathkit.

@richardbrobeck2384 3 ай бұрын

What a great project to make !

@michaelmiller641 3 ай бұрын

Great video! Thanks!

@JCWise-sf9ww 3 ай бұрын

When I was some where around 9-12 years, I seen this same "Transistor Radio & Broadcast System Kit". I remember it look identical to the Radio Shack 60-2276, pictured at end of this pt2 video, but it was in a Wards Airline catalog. I want one, but my parents didn't have the money.

@Steve-GM0HUU 3 ай бұрын

👍Thanks for videos Mike. At one point I think you said that you "cloojed" the capacitors around the switch. I have never heard this term before. I made few simple practice oscillators in the past. The one thing I always had trouble with was annoying key clicks.

@MIKROWAVE1 3 ай бұрын

Kluged or to Kluge. We need a full video to explain!

@Steve-GM0HUU 3 ай бұрын

@@MIKROWAVE1 Thank you. I learned a new word. It is in dictionaries; a haphazard or makeshift solution to a problem. I think most of my homebrew are probably kluge radios 🤣.

@cheesedoodlefeeder 3 ай бұрын

It's nice to have a bit of chirp going on, it gives it a bit of character that a pure sine wave just can't even come close to. Maybe less regulation in the power supply would be worth a try.

@Capecodham 3 ай бұрын

Why did you name the capacitor after you? (one mike). Instead of a transistor why not use a 4CX5000 tube?? It would be louder. Instead of a J-38 key you could have used an old house key?

@Dazzwidd 3 ай бұрын

why not get a 1000W speaker and key the mains into it... 50 or 60Hz code practice oscillator. Such elegant simplicity

@snarfusmaximus 3 ай бұрын

This is great! Do you plan on doing a valve version?

@MIKROWAVE1 3 ай бұрын

A 117L6 widow maker version?

@snarfusmaximus 3 ай бұрын

@@MIKROWAVE1 Not a common valve in Australia as we have 240V. A battery valve would be good as the low B+ won't scare off beginners.

@Chiavaccio 3 ай бұрын

Awesome!!!👏👏👏👏

@bigguyprepper 3 ай бұрын

When you show the schematic for the Hartley "conversion", you drew it in green, are you also meaning to use that green line to put the whole value of the potentiometer from the ckt to ground?

@MIKROWAVE1 3 ай бұрын

No need for the pot so just shorting it out and retained the 10K.