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Jimmy[_8_] Jimmy[_8_] is offline
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Default EF86 preamp

This is the circuit diagram of a EF86 preamplifier.

https://imageshack.com/i/mv8j8lg

https://imageshack.com/i/2h7pog

https://imageshack.com/i/1a2xf8g

https://imageshack.com/i/5mdk3ng

Then I found a circuit that is claimed to be the same circuit, but how come 5 tubes (below) vs. 6 tubes (above -- stock / original)?


https://imageshack.com/i/3uzdfg

Are they really the same?

Thank you!
 
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