OT impedance taps question

Double-Bubble! Place for discussing the 36W version...

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leslie
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Post by leslie »

sub wrote:
Interesting thing i measured always the same on green(8ohm) and orange(16ohm) :?

Oh i forgot this is a 18W OT (not 36W)
Hey sub,
yeah it's hard to measure low ohms and megaohms acuratelly with generic DMM...
The reason the 8 to 16 ohm tap is reading similar is because secondary wire is thick and you have only about let's say 30 windings or so inbetween end of 8 and 16...so it's hard to be accurate there...
the bigest windings (number of turns) is beetween Ground and 4 0hm tap around let's say 70 windings or so.

So winding turns progression looks something like this :

-70-30-30- (let' say complete winding is 130 turns)

"-" is your leads 0,4,8,16

Regards
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sub
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Post by sub »

:idea:
Thank you Leslie! :wink:
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flatfive
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Post by flatfive »

I must have guessed right. The green (middle coming out of the OT) wire appears to be 8 ohm. I played it for 3 hours no problem. BTW, I really like the Vintage 30. It has a surprising amount of bass.
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