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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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Tape Trail Reel to reel, cassette and other analogue tape formats. |
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In Reply to: The Best of Luck to you! posted by grhughes on January 11, 2006 at 17:14:54:
While the focused head gap technology is undoubtedly the best there was, I was able to get almost the same effect with a form of (all tube) HX bias modulation (400khz bias frequency) using conventional heads, allowing up to 6db more HF headroom, especially at 7.5 ips and below, making 7.5 and 3.75 ips viable for good quality listening. Plus, I developed an all vacuum tube circuit that could literally peak unlimit recordings on tape formulations new or old by 2-3 db. In conjunction with my playpack phase compensation, I could record a triangle wave at a level high enough to round off the peaks and then restore it to essentially its original form with this circuit. Of course, the exact adjustment depended on tape formulation, and to a lesser extent, the particular bias and headroom capabilities of the machine the tape was made on, but even an appropriate generic setting for a standard tape formulation would typically reduce saturation distortion by 2/3 all the way up until it hit several dozen percent.I even gave some thought to summing the output of some linear Hall Effect sensors strategically placed in front of the pb head shields and going for a DC playback response, but that was getting to be a bit much diminishing returns wise.
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Follow Ups
- Re: The Best of Luck to you! - Tom Dawson 18:55:23 01/11/06 (1)
- That is indeed interesting! - grhughes 19:20:23 01/11/06 (0)
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