Re: Quadruplex 2 inch tape
No sound? I was posting based on the fact the Op said "noise on the picture and a continuous tone on the sound"? Not to worry, at least you had good go at it.
BTW, I never saw anyone try direct RF dubbing even though our machines had the facility. I have had a quick look in my 'Bible' of all things Quad (Ennis) and he does go into direct RF copying in some detail. It would be a bit difficult to scan and copy the relevant section (4/5 pages) but if you want a copy I will try (the book is not very flexible and does not open out flat very well to go on a flatbed scanner). It is a bit specific to a specific circuit rather than general principles so I'm not to sure it would be of much use or interest to you especially as you are never going to use it.
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