laydown transformer orientation

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wsaraceni
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Joined: Fri Apr 14, 2006 5:18 pm

laydown transformer orientation

Post by wsaraceni »

i only get to do this once, so i want to do it right.


im using a set of toneslut trainwreck transformers that i have a laydown endbell on the power transformer. since everything comes out the middle, i'm a little unsure which direction it mounts. there is a copper strip on the shorter two sides and the longer two sides are plain. do the longer sides go front to back or parallel to the front and rear?

A.

[img:2403:1802]http://img.photobucket.com/albums/v217/ ... 178e3d.jpg[/img]

or B.

[img:2506:1880]http://img.photobucket.com/albums/v217/ ... 3cc43c.jpg[/img]
wsaraceni
Posts: 517
Joined: Fri Apr 14, 2006 5:18 pm

Re: laydown transformer orientation

Post by wsaraceni »

also, any clue what that glue type stuff is on the transformer? can i scrape it off?
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xtian
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Re: laydown transformer orientation

Post by xtian »

You'll want to do the headphone (or scope) trick to find the position with least noise.

Yes, you can scrape off the drippy lacquer if it bothers you.
I build and repair tube amps. http://amps.monkeymatic.com
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xtian
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Re: laydown transformer orientation

Post by xtian »

* swear I only clicked Submit once, man *
I build and repair tube amps. http://amps.monkeymatic.com
wsaraceni
Posts: 517
Joined: Fri Apr 14, 2006 5:18 pm

Re: laydown transformer orientation

Post by wsaraceni »

how do i do the headphone trick without mounting the power transformer. do i just put it as is and then hope when i flip it upside down and drop it into the chassis nothing changes?
Firestorm
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Re: laydown transformer orientation

Post by Firestorm »

I think it's traditional to orient the flux bands so they face the other transformer, but yours aren't quite in a line so the headphone trick should tell the tale. Theoretically, the z-mount PT flips the stray field 90 degrees so it should be harder for it to couple undesirably.

Be careful scraping off the lacquer. You don't want to short the laminations together.
wsaraceni
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Joined: Fri Apr 14, 2006 5:18 pm

Re: laydown transformer orientation

Post by wsaraceni »

how would you short the laminations? if its only laquer i plan on just leaving it
Firestorm
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Location: Connecticut

Re: laydown transformer orientation

Post by Firestorm »

wsaraceni wrote:how would you short the laminations? if its only laquer i plan on just leaving it
It's like when people want to sand the rust off old transformers. Bad. The lams are mostly isolated from each other by varnish; if you sand them, you wind up connecting some of them. Rust, as it turns out, is not so bad. But I still put that Rust Reformer crap on them. I was just afraid you'd get overzealous in making the transformer pretty.
wsaraceni
Posts: 517
Joined: Fri Apr 14, 2006 5:18 pm

Re: laydown transformer orientation

Post by wsaraceni »

oh. i was just planning on scraping off what i could with my fingernail. but really, since its not an issue, i plan to just leave it
Firestorm
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Re: laydown transformer orientation

Post by Firestorm »

Right. It's not a sculpture. Matters how it sounds more than how it looks.
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