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TwitterTesting a setup for displaying mechanical 60-line TV signals on an oscilloscope screen. A new 12.5Hz (yes, it's that slow!!!) multivibrator needs to be constructed, as well as a circuit for inverting the sync-positive output "audio" signal from the computer. The oscilloscope will provide the 750Hz line sweep via its external sync input. Vertical retrace blanking cannot be easily achieved with this setup. I hope to record the the low-band video signal along with program audio onto a stereo cassette or 1/4" reel-to-reel tape. With this video converter, I can record 32 or 60 line video directly to my hard drive. I can also record directly to an external audio recording device like a digital recorder or tape machine. Link for the website in the video: users.tpg.com.au
Tags: mechanical, television, baird, televisor, 1930s, 32, 60, lines, raster, scanning, nbtv, vintage, electronics, video, scan, conversion, audio, signal, narrow-band
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