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 Post subject: Help
PostPosted: Fri Oct 23, 2015 10:12 pm 
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Just installing heater wire to pre amp tubes. I can't tell if the black ground is supposed to it together across pin 4 and 5 or not for wiring coming from output tube


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 Post subject: Re: Help
PostPosted: Sat Oct 24, 2015 12:39 am 
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Hi Chris, yes, on both the preamp tubes pins 4 and 5 are wired together/connected as part of the Heater wiring.

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 Post subject: Re: Help
PostPosted: Sat Oct 24, 2015 6:27 am 
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Is a small piece of heater wire used as a jumper the way it's done - this is how I have wired it


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 Post subject: Re: Help
PostPosted: Sat Oct 24, 2015 6:33 am 
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Yep, that's fine. :thumbsup:


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 Post subject: Re: Help
PostPosted: Sat Oct 24, 2015 11:18 am 
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Or you can just strip off a bit more insulation and run the same wire through pins 4 and 5 of the 12AX7.

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