MagneQuest/Peerless Forum Welcome! Need support, you got it. Or share your ideas and experiences.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ MagneQuest/Peerless Forum ] [ Return to Search Results ]

---

[ Alert Moderator ]

---

RE: Mike: Help confirming identity of OPT, please

Posted by mqracing (M) on March 25, 2013 at 20:09:45

In Reply to: Mike: Help confirming identity of OPT, please posted by Stephæn on March 25, 2013 at 13:17:44:

I can confirm that the NAG stands for "nickel air gapped"...

the 10X10 would have indicated that the lams were stacked alternately(i.e., interleaved) in groups of ten...

but your units are NOT stacked 10x10--- they are butt stacked with an air gap spacer--- hence you see the straight line all the way across the stack where the E's butt up against the I's.

best I can figure is that I may have initially planned on stacking the core 10X10.. and then changed my mind and went with a gapped butt stack...

Stacking 10x10 introduces an airgap into the core... but not as large a gap as a butt stack with an added spacer works out to bee.

Cores that are not intended to have an air gap are usually stacked 1x1--- one by one gives you the least amount of airgap and optimizes the effective perm of the core--- so-- say in a push pull output trans you might go with a one by one stack. One by one keeps the interruption of the magnetic circuit to a minimum.

As a side note--- and something I've thought a lot about and have wanted to write about is--- for all the cache of "c-cores" being hip and efficient--- they more closely resemble the butt stacked EI lams in the sense of they have "large" effective air gaps vis-a-vis what can be obtained with carefully stacked EI laminations.

Your pair of 204 NAG's are really numerically quite rare... we've maybe made three or four pairs of these (by memory) over all of the 22 or 23 years that I've been making transformers.

Enjoy.

MSL



Builder of MagneQuest & Peerless transformers since 1989

This post is made possible by the generous support of people like you and our sponsors:

Schiit Audio

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---