[ARC5] Headphones H-43 B/U

[Dennis Monticelli]

I have a pair and took measurements.  Yes, they are 20K.  They also have
VERY high sensitivity according to power measurements I made at MDS.  When
I get home from my business trip I could share the numbers.

Dennis AE6C


On Sat, Mar 15, 2014 at 5:10 PM, Kenneth G. Gordon <kgordon2006 at frontier.com
> wrote:

> On 15 Mar 2014 at 17:58, Roy Morgan wrote:
>
> >
> > On Mar 15, 2014, at 5:16 PM, Kenneth G. Gordon <kgordon2006 at frontier.com>
> wrote:
> > > > In that one, it says that the H-43-B/U is 20,000 ohms > > Gotta do
> some more
> > research.
> >
> > Ken,
> >
> > I´d be glad to know that other web site.
> > I have an HS-16 that is TERRIBLE.
>
> Here is the link, Roy.
>
> http://www.liberatedmanuals.com/TM-11-487M.pdf
>
>
> > No shack should be without a General Radio RLC bridge (or even a
> Heathkit).
>
> I have a couple. One is an AN/URM-90. Neat piece of equipment. I also have
> a Beco which works very well.
>
> > Of course with a signal generator and a few resistors and a VTVM, you
> can lash
> > up a simple impedance measurement.
>
> I'll do that asap.
>
> > Is the H-43 a crystal type?  Seems that 20,000 ohms is high for normal
> wire
> > wound types.
>
> I dunno, Roy. But I intend to find out.
>
> Ken
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