[ARC5] HS-33

[Bart Lee]

Re the Brush 'phones, DO NOT TEST with a battery (for a click). That can
fry 'em.

73 de Bart, K6VK ##
-- --
Bart Lee, K6VK, CHRS, AWA, ARRL

Texts only to: 415 902 7168

www.bartlee.com

{Bart(dot)Lee(dot)K6VK(at)gmail(dot)com}
<http://www.lawforhams.com/>



On Sat, Aug 10, 2019 at 6:59 AM Doran Platt <jeepp at comcast.net> wrote:

> I did an article in ER a while back with info on all this.  I'll look ip
> the date and post it.
>
> Jeep K3HVG
>
> On August 9, 2019 at 6:33 PM Richard Knoppow <1oldlens1 at ix.netcom.com>
> wrote:
>
>
> Thank you for posting this. I have seen some of this
> information elsewhere but this is a more complete summary than
> the others.
> Is the complete publication available on line anywhere?
>
> On 8/9/2019 2:34 PM, Michael Hanz wrote:
>
> For those interested, several years ago I posted a summary at
> http://aafradio.org/docs/NDRC_Division_17_excerpts.pdf  that goes llnto a
> lot of the work that Harvard and others accomplished under
> the NDRC banner, overall entitled Transmission and Reception of
> Sounds Under Combat Conditions.  The excerpt is Chapter 9, The
> Interphone.  The headphone research is covered under pp135-138 of
> the pdf.
>
>    - Mike  KC4TOS
>
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
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