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dr pepper replied to the thread Xmas project Tv delay line osc.

Got it to work. On the schem theres a 1mH choke in the vcc line to the logic chip, and the delay line 180r resistor is connected to vcc...
Jan 5, 2025
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dr pepper replied to the thread Xmas project Tv delay line osc.

Not having a good supply of Ic's plus this not lending itself to breadboarding due to high freq's I decided to sim this on Lt spice...
Jan 1, 2025
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dr pepper replied to the thread Xmas project Tv delay line osc.

1735582300 I threw the following circuit together. The waveforms this makes are the same as my 'scope pic above. The circuit is just a...
Dec 30, 2024
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dr pepper replied to the thread Xmas project Tv delay line osc.

Yep it's glass, and acoustic. Both transducers have 2 separate leadouts. I created a delay memory, it's not oscillating, fiddling and...

Dec 30, 2024
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dr pepper replied to the thread Xmas project Tv delay line osc.

The delay line stores 1 video line at 1/15.625 kc yes. The lines piezo transducers don't respond to 15.625kc, seems peak response is...

Dec 30, 2024
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dr pepper posted the thread Xmas project Tv delay line osc in Hobby Circuits and Small Projects Problems.

Instead of drinking eggnog I decided to breadboard a project I attempted a while back. An oscillator based on a Tv delay line, I saw...
Dec 29, 2024

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