Questions about Bob A IF Alignment Series on YouTube

[Electronic M]

Originally Posted by Chris K

Yes I see that now. Thank you! Unfortunately my B&K 415 only puts out about 30 MHz at the lowest IF output setting and this requires 25.0 as the center point. I wouldn't be able to use the markers either...I'd need an external marker unit. I do have a decent Knight frequency generator that I have dialed in at 25 MHz using my scope but I can't sweep. I do have a Knight sweep generator I restored but it's electromechanical and I would need to calibrate it first.

There's an old thread here on Videokarma where someone with a B&K 415 found cheap modern RF hobby oscillator boards and came up with a way to externally heterodyne the 415s output down to the old 21MHz TV if standard and use it to align early sets. It might be worth digging up.