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Re: [TenTec] NC headphones

To: <wb2vuf@qsl.net>,"Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] NC headphones
From: "Mike Hyder -N4NT-" <n4nt_m_o_hyder@charter.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Mon, 9 Jan 2006 20:57:48 -0500
List-post: <mailto:tentec@contesting.com>
Wear them in front of your ears on your temples

----- Original Message ----- 
From: "Bwana Bob" <wb2vuf@qsl.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Monday, January 09, 2006 8:47 PM
Subject: Re: [TenTec] NC headphones


I started my Novice career with a set of Trimm Radio magnetic
headphones. They were old even then in 1966 (probably dating from
1945-1948). It hurt my ears to wear them, but lately I've been using
them again. Those old magnetic cans with their peak at 800 Hz are great
for CW. For hi-fi, there are the old surplus Telephonics headsets!


Bob WB2VUF

Barry Gross wrote:
> This makes 141 reflector messages about headphones in the last 3 weeks, 
> but
> who's counting?
>
>
> On 1/7/06, Jim McDonald <jim@n7us.net> wrote:
>
>>I admit they're expensive $300), but I really do like my Bose Quiet
>>Comfort
>>2 noise cancelling headphones.  I wear them primarily on airplanes but
>>they
>>do get rid of fan noise in the shack and are very comfortable to wear.
>>They're light weight so seem light duty.  The cord, for example, makes
>>RG-174 coax look sturdy.  My ears are totally enclosed within the pads, so
>>there's no pressure on the ears.  I wear lightweight glasses.  The AAA
>>battery is said to last 35 hours, I think, and that seems about right or
>>maybe conservative.  They swivel and fit into a pretty slim travel case.
>>
>>They have a HiFi frequency response so don't expect them to do any
>>filtering.
>>
>>Jim N7US
>>
>>-----------------------------------------------------------------------
>>
>>W9OY:
>>
>>I am now the proud owner of 3 different noise canceling headphones.
>>
>>Heil $99
>>RCA hpnc-250  $30
>>TDE $10
>>
>>I've had the Heil for several months.  I found the RCA's at Walmart over
>>the
>>holidays, and I found the TDE's at a CVS in Orlando.  The Heil are the
>>most
>>comfortable to wear.  They do not touch the earlobe but cup the ear, and
>>provide good isolation.  The noise canceling works well especially on
>>things
>>like fan noise.  The sound quality is excellent and the N/C doesn't add
>>any
>>artifacts.  The effect when you turn them on is similiar but not identical
>>to entering an an-echoic chamber.  In other words the effect is a distinct
>>lack of noise that I would characterize as "deadness"
>>
>>The RCA while 1/3 the price are as good in terms of the noise canceling
>>effect.  They have good audio quality and are confortable, but the ear
>>pads
>>do contact the ear lobe so over all they may not be the best for long
>>hours
>>of listening.
>>
>>The CVS phones are clearly inferior ot these other phones.  They are about
>>the equivalent to the RCA in both comfort and audio quality but the noise
>>canceling is much inferior.  Where the others leave you with the
>>perception
>>of "deadness" the CVS acts more like a high pass filter where the lows are
>>reduced, but what then passes are highs so you end up with higher pitched
>>noise that lacks the lows instead of "deadness".  It seems to just shift
>>the
>>noise up the spectrum so to speak, instead of cancel it.
>>
>>So that's my experience with noise cancelers.  YMMV
>>
>>73  W9OY
>>
>>
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>>
>
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