jmp 50 output transformer orinatation

Get support and show off your MetroAmp 50 Watt kit builds.

Moderator: VelvetGeorge

Post Reply
shackman
New Member
Posts: 7
Joined: Wed Mar 18, 2015 6:08 am
Just the numbers in order: 13492

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
Senior Member
Posts: 1099
Joined: Tue Sep 10, 2013 9:09 pm
Just the numbers in order: 13492

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
New Member
Posts: 7
Joined: Wed Mar 18, 2015 6:08 am
Just the numbers in order: 13492

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
New Member
Posts: 7
Joined: Wed Mar 18, 2015 6:08 am
Just the numbers in order: 13492

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
Senior Member
Posts: 1099
Joined: Tue Sep 10, 2013 9:09 pm
Just the numbers in order: 13492

Re: jmp 50 output transformer orinatation

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

Glad to hear that it's working well!

Post Reply