[HBR] Iron powdered slugs

[Peter Bertini]

Does he say if the core is ferrite or powdered iron?  I suspect for that range
it would have been a ferrite slug??

Pete

On Sun, Sep 28, 2008 at 3:00 PM,  <jlandrigan at pol.net> wrote:
> I am trying to construct a permeability tuned oscillator from the July 1964
> QST. The plan calls for an 8 mm diameter by 19 mm long iron powdered slug
> with a 4 mm hole through it. The author says he used the slug from a surplus
> 455 KHz IF transmformer.
> Does anyone have any experience with PTO construction and does anyone have a
> source for this slug?
> This is the basis for both a transmitter VFO and a heterodyne mixer for a
> HBR styled receiver.
> John KA4RXP
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