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Old 29th Dec 2022, 7:42 pm   #15
Radio Wrangler
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Location: Fife, Scotland, UK.
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Default Re: Cassette deck head alignment - a surprise

Quote:
Originally Posted by Uncle Bulgaria View Post
I'm interested as to how the pot value being 8k rather than 10k has such an effect. If at maximum there's not enough adjustment, why didn't they use a fixed resistor and a 2k pot if all the required adjustment is in the 2k that you've lost?
It might be so on that machine, but the amount of adjustment needs to be sufficient to handle the full production spread. Designers usually err on the more adjustment side because not enough available will crash the production line (Never popular...)

I've seen enough far offset twiddlepots, just to save a fixed resistor, but getting it right, with a nominal set having them at mid-span is a sign of care and quality.

David
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