https://mgs4u.com/product/vernier-redu
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The Radio Board.org
Edited: Jun 15, 2022
This is impossible to find, but here it is. Vernier Reduction Drive 6 to 1, for tuning. Yeah !!!
This is impossible to find, but here it is. Vernier Reduction Drive 6 to 1, for tuning. Yeah !!!
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Yup, 3, I counted it for a 180 , my bad. But still a bit better than not. And it allows me to use a cheap clock hand for the pointer.
Not quite sadly, the variable capacitor these are generally fitted to have a 180 degree rotation, so its actually only 3:1 in real terms. They can be cascaded though 2 giving a 18:1.... :-)