[TenTec] Headphone impedence

[Stephen Roberts]

Thanks Rick,

I'll put that attenuator together and give that a go.

Thanks

Steve
W1SFR


On Apr 7, 2012, at 12:00 PM, Rick - DJ0IP / NJ0IP wrote:

> Steve,
> 
> Your headphones are 64 Ohms and come standard with a 3.5mm stereo phone plug
> and a 1/4" adapter.
> They are also stereo.
> Your Argosy has a 1/4" phone jack, but it is mono, not stereo.
> 
> The best thing is to build yourself an adapter from 3.5mm female to 1/4"
> mono and connect both sides (left and right) together.
> 
> On page 2-7 of the manual (labeled 10-525 in the downloadable manual), at
> the top, it explains how to use various headphones, but only vaguely.  
> 
> Specifically, it states that you can use as is with high impedance
> headphones, but for low impedance headphones, you need to add an attenuator
> made of two 1/8w resistors which you can get at Rat-Shack for about 50
> cents.
> 
> For me, high impedance is hundreds of Ohms, like my old Sennheiser HD-414
> SL, which are 600 Ohms.
> And low impedance is 8 Ohms.
> I'm not sure where your 64 Ohm headphones fit.
> 
> ONE THING FOR SURE, it will not hurt to just plug them in using the adapter
> built as described above.
> However, you may find that the volume is very loud and the adjustment volume
> control adjustment is very sensitive.
> In that case you will need to build the attenuator as described on page 2-7.
> 
> If you have to go to Rat-Shack to buy the plugs to build your adapter, go
> ahead and pick up the two resistors too.  If you don't need them, you're out
> 50 cents; if you do need them, you saved yourself a trip back to Rat-Shack.
> 
> 73
> Rick, DJ0IP
> 
> -----Original Message-----
> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
> On Behalf Of Stephen Roberts
> Sent: Saturday, April 07, 2012 5:35 PM
> To: Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Headphone impedence
> 
> HD280 Pro
> 
> 
> On Apr 7, 2012, at 10:45 AM, Rick - DJ0IP / NJ0IP wrote:
> 
>> Steve, which Sennheiser headphones do you have.
>> Sennheiser makes about 25 different models.
>> 
>> 73,
>> Rick, DJ0IP
>> 
>> -----Original Message-----
>> From: tentec-bounces at contesting.com [mailto:tentec-bounces at contesting.com]
>> On Behalf Of Stephen Roberts
>> Sent: Saturday, April 07, 2012 3:17 PM
>> To: Discussion of Ten-Tec Equipment
>> Subject: [TenTec] Headphone impedence
>> 
>> 525 1/4" to new Sennheiser headphones. Do I need to do anything special?
>> 
>> Steve Roberts
>> Steverob at shoreham.met
>> 802.779.7489
>> 
>> Sent from my iPhone
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> 
> Stephen Roberts
> Marketing Manager
> Timberwolf Manufacturing
> 
> marketing at timberwolfcorp.com
> http://www.timberwolfcorp.com
> twitter.com/timberwolfcorp
> youtube.com/timberwolfcorp
> 
> 
> 802-779-7489 Cell
> 866-616-7969 Fax
> 
> 
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Stephen Roberts
Marketing Manager
Timberwolf Manufacturing

marketing at timberwolfcorp.com
http://www.timberwolfcorp.com
twitter.com/timberwolfcorp
youtube.com/timberwolfcorp


802-779-7489 Cell
866-616-7969 Fax