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Old 04-27-2026, 12:40 PM
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TinCanAlley TinCanAlley is offline
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Location: So Cal, CA
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Quote:
Originally Posted by kf4rca View Post
I have done this but I used DC coupling into the first video amp. You're probably going to need some amplification as the set probably wants 2V P-P for full brightness. Check the schematic. I did this on a Heathkit using a MAX405 op amp and an RCA using a 2 transistor amplifier. I would go the transistor route since the MAX405 op amp is probably no longer available.
I think this may be the case as the image I just got was way to dim and looks the way it does when the brightness is down too low. According to the schematic, the signal from the IF out is 1.4V for the waveform.
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