[ARC5] Headphones H-43 B/U

[Scott Johnson]

The H-43 was packed with the PDR-27 series of Geiger survey meters, among
others.

Scott W7SVJ

-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Kenneth G. Gordon
Sent: Saturday, March 15, 2014 2:17 PM
To: Rod Hogg
Cc: ARC5 at mailman.qth.net
Subject: Re: [ARC5] Headphones H-43 B/U

On 15 Mar 2014 at 15:52, Rod Hogg wrote:

> Ken,
> Doing a "Google" on them, H-43B/U, comes back showing them to be 3000 
> ohm and were designed to be used with a Geiger counter......?? Made by 
> different manufacturers....says they work well with crystal radios.

Thanks, Rod. I found that page...and another one which is a military list of
headphones, loudspeakers, mics, etc.

In that one, it says that the H-43-B/U is 20,000 ohms

Gotta do some more research.

Ken W7EKB
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