[Boatanchors] [BoatAnchors] Can Toroids Be Notched?

[K5MYJ]

Magnetic tape heads are gapped at the front and rear. The gaps have a thin 
insulator. Sometimes vacuum deposited silicon. Sometimes Mylar.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Donald Davis" <dxguy at earthlink.net>
To: "'Ham radios with tubes'" <boatanchors at lists.theporch.com>; 
<boatanchors at mailman.qth.net>; <milsurplus at mailman.qth.net>; 
<dxguy at earthlink.net>
Sent: Thursday, July 19, 2018 3:06 PM
Subject: Re: [Boatanchors] [BoatAnchors] Can Toroids Be Notched?


> Gaps are used frequently in power magnetics to extend the b-h curve so it
> won't saturate during start up and short circuit operation.  Iron and
> ferrite can be fully or partially gapped.  Should only be done with a
> diamond wet saw (Home Depot tile saw) or can have gapped by Magetics Inc. 
> or
> other.
>
> Should be "perfect" cut surface.
>
> 73 de don ad6pb
>
> -----Original Message-----
> From: BoatAnchors [mailto:boatanchors-bounces at lists.theporch.com] On 
> Behalf
> Of David Stinson via BoatAnchors
> Sent: Thursday, July 19, 2018 9:37 AM
> To: boatanchors at mailman.qth.net; milsurplus at mailman.qth.net
> Cc: David Stinson <arc5 at ix.netcom.com>
> Subject: [BoatAnchors] Can Toroids Be Notched?
>
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