jmp 50 output transformer orinatation

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shackman
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jmp 50 output transformer orinatation

Post by shackman » Thu Mar 03, 2016 12:50 pm

Just got half way through my latest build and noticed I have put the output transformer back to front meaning the primary is facing the output tubes. Will this make any difference to noise i.e. hum etc?

I've made a really neat job and don't want to mess with it if I don't have to.

danman
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Re: jmp 50 output transformer orinatation

Post by danman » Thu Mar 03, 2016 4:39 pm

I don't believe that it will cause you any issues because the OT is still at a 90 degree angle to the PT.

shackman
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Re: jmp 50 output transformer orinatation

Post by shackman » Fri Mar 04, 2016 1:56 am

Thanks Danman, just wondered why it's always with the secondary pointing towards the output tubes, maybe the cable run is shorter for the output?

shackman
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Re: jmp 50 output transformer orinatation

Post by shackman » Fri Mar 04, 2016 12:27 pm

Well just finished the amp and it sounds great, no hum or noise issues.

I did change the V1 coupling cap to a .0022 instead of the .022 because it sounded a bit dull.

It has a lar/mar ppimv on as well, great amps!

danman
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Joined: Tue Sep 10, 2013 9:09 pm
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Re: jmp 50 output transformer orinatation

Post by danman » Fri Mar 04, 2016 2:31 pm

Glad to hear that it's working well!

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