Crosley 307TA part 5 (finale)

Fantastic job overall, and great explanation and demo about the FM sound alignment with the sweep generator!

A very enjoyable video. You are very good at explaining the various steps of the peaking process and the interfacing of the test equipment. Always look forward to your video's, they are first rate.

Really enjoyed the sound alignment segment. This restoration turned out beautifully.

A lot of work. Well rewarded. Congrats. Looks fantastic at the end.

That is a cool set and you really did a nice job restoring it!

It's great seeing someone doing what I wish I could; the way they turn out is beautiful. We used to have an early 50's Emerson (or maybe it was an RCA) at my grandparent's cabin, which I remember we took to the repairman once or twice; the thing was still functional when I was a kid in the 80's! But it never got more than 2 channels though lol.

Excellent video, Bob! You did a beautiful job cosmetically and electronically restoring this vintage set! It probably works better than when it did fresh off of the assembly line back in '48, partially because those wax capacitors weren't very good, even when they were new.

Looks amazing, great job.

I learned something, thanks Bob! I didn't realize the early 21 MHz IF TVs had a totally separate IF stage for the Video and Audio. I noticed this is the first 1940's set with an improved sweep sync circuit, the horizontal oscillator/sync circuit is essentially a phase locked loop.

Very pretty TV. I like the old sets better than the new. Who cares if they were B&W; doesn't bother me as long as the sound is good, the picture is clear,, and there are 30 minutes of commercials for an hour show.

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Years ago someone had a process for casting new knobs using an old one to create a mold. They melted recycled plastic like HDPE. It would take some machining and then paint to match. I'll have to see if I can find it.

Bob a great video and really nice learning adventure. I also love you coffee mug with the TV sets on it. Where did you get it. thanks Mike

You might attempt to find someone online who can duplicate those missing knobs from the one good one, using 3D printing.

Another great video... thanks! Random question.... which TV is your main set you watch in the living room? Modern flat screen?

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Were you able to tune the trough into the response?

Bob, I'm particularly interested in how you display the z-blanking markers on the oscilloscope? I have an HP3325A generator, it is a little more modest in terms of capabilities than what you are using, but it has one programmable marker. However, I don't know how to connect it to the system, when I do the alignment of the old FM radio. On the back, it has a BNC "marker output TTL level" and also has a z-blanking output. I tried to connect the Z output to the Z-input of the oscilloscope, the IF curve is displayed perfectly, but there are no luminous markers like you have. I have the manual for the HP generator, but of the 400 pages it has, there are no diagrams showing how it connects to different systems when using it. Can you show which cable goes where to get such light markers? Or does it need some additional device? greeting

Got blocked off at 03:17 .. endless twizzling "circle" animation