[Amps] Silver plating

[Carl]

----- Original Message ----- 
From: "Phil Clements" <philc at texascellnet.com>
To: <dezrat1242 at yahoo.com>; "'Amps reflector'" <amps at contesting.com>
Sent: Thursday, April 09, 2009 12:18 AM
Subject: Re: [Amps] Silver plating


>>
>> Thanks Roger. I have a 1500 watt amp with a ten meter tank coil wound
>> with #6 solid copper wire. After about 30 seconds key down CW the 
>> coil
>> is uncomfortably hot to the touch. I would estimate loss of around 50
>> watts or so. I was thinking of having it silver plated and seeing 
>> what
>> the difference would be. I realize at the 1500 watt level, 50 watts 
>> is
>> almost nothing at the RX end. I'm just curious.
>>
>> 73, Bill W6WRT
>
> Bill,
> I would not waste silver on such an undersized coil. Wind a coil out 
> of 1/4
> inch or 3/8 inch copper tubing. This should run cool @ 1500 watts. 
> Then, if
> you want it to look pretty, go ahead and put the silver on it. That #6 
> wire
> is going to run hot at 1500 watts whether it is plated or not.
>
> (((73)))
> Phil, K5PC

Completely agree. Plus the tubing allows air flow and more surface area.

Id also look at the design and measure the overall efficiency.

Carl
KM1H



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