[Elecraft] Yamaha CM500 bias batteries durability
Joe Subich, W4TV
lists at subich.com
Mon Oct 31 16:05:00 EDT 2011
Jorge,
How could you have damaged the bias box? The circuit is:
"Radio" "Mic"
1 uF
Tip ---+-------|(--------+---- Tip
| |
Ring --+ >
> 2K2
>
|
+--- 3V --------+
|
|
Sleeve --+-------------------- Sleeve
There is no connection to the "ring" on the mic side of the
box.
73,
... Joe, W4TV
On 10/31/2011 1:56 PM, Jorge Diez - CX6VM wrote:
> Hi Mith,
>
> I was luck to found two AAA batteries in the farm!, so why I was worried.
>
> Now I am buying more to have in stock! No houses or shopping's around ....
>
> Anyway I damaged the bias box, so I needed to use the Heil ProSet, and still
> now they hurt my ears!, really CM500 are very confortable.
>
> Lucky next cqww cw I can use the CM500 headphones as I not need the MIC, hi
> hi...
>
> 73,
> Jorge
> CX6VM/CW5W
>
> -----Mensaje original-----
> De: Mitch Wolfson DJØQN [mailto:mitchwo at gmx.net]
> Enviado el: Lunes, 31 de Octubre de 2011 03:33 p.m.
> Para: Jorge Diez - CX6VM
> CC: 'Elecraft Reflector'
> Asunto: Re: [Elecraft] Yamaha CM500 bias batteries durability
>
> Jorge,
>
> Your answer is that they last just long enough to die on the first day
> of a major contest in October. Don't ask me how I know that ;-)
>
> Take Tom's advice and keep extra batteries on hand at all times.
>
> 73,
> Mitch DJ0QN
>
> On 28.10.2011 23:23, Jorge Diez - CX6VM wrote:
>> hello,
>>
>> how long a pair of AAA batteries will last in the bias of the CM500? Will
>> be enough for a 48 hours operation in the contest?
>>
>> I need to use the small black box with the 2 x AAA batteries to connect
> the
>> CM500 in the DXDoubler.
>>
>> 73,
>> Jorge
>> CX6VM/CW5W
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
More information about the Elecraft
mailing list