So more progress has been made. Ditched the 12AT7 based video input amplifier in favor of an LM1252 video op-amp and basically rebuilt the entire interface board. It still retains the LM1881 sync separator as this has been a real asset when dealing with non timebase corrected videotape sources as I get no flag waving or skew induced distortions. The amplifier has an overall gain of 5 at 75 ohms and this is then padded using a pot which then feeds the pentode grid of the 6MU8 1st video amplifier. Below are a few images of the amplifier and actual raw playback from a tape I made the spring of 1985 using a Sony VO-2600 I bought from a surplus store for $20.00, sorry for the rather poor capture quality. Every time I try to use the Pro camera mode it seems to make things worse and no matter how I try it is never quite right.
Video Interface board:
https://imgur.com/T1S6xpU
Tape Starting Point:
https://imgur.com/hco1PnH
Actual Screen Capture:
https://imgur.com/dUCnGtM
Sony VO-2860 In Action:
https://imgur.com/stVHm2b
10-10-2024, 02:22 AM
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