On Wed, 25 Nov 1998 16:58:52 -0000 Peter Chadwick
<Peter_Chadwick@mitel.com> writes:
>Carl,
>
>
> >I would think that a good hobby and crafts 4% silver solder
>would
>be
> >superior. I use that mix here for most QRO RF work,
>particularly at
>VHF
> >where I have had regular solder melt while debugging a tank
>circuit.
>
>Is that the high temperature silver solder, or the low temp (220deg C)
>2%
>silver soft solder?
I said 4% not 2% . Peter I think the 2% stuff is what the envirowackos
have forced on several states for copper plumbing use.
I have no idea what the melting temp is Pete. It is not mentioned on the
package but I can say it takes considerably more effort from a 140W
Weller gun to melt compared to the regular 60/40 stuff.
My standard shop gun is an ancient 100/140W Weller and for silver
soldering I usually wind up with the larger 240/325W D-55 model . When
I get real serious I fire up the old 175W straight iron or the propane
torch.
73 Carl KM1H
r>
>73
>
>Peter G3RZP
>
>> ----------
>> From: km1h@juno.com[SMTP:km1h@juno.com]
>> Sent: 25 November 1998 16:43
>> To: amps@contesting.com
>> Subject: Re: [AMPS] joints
>>
>>
>>
>>
>> On Wed, 25 Nov 1998 12:36:23 -0000 Peter Chadwick
>> <Peter_Chadwick@mitel.com> writes:
>> >
>> >Does anyone know if silver soldered joints have higher resistance
>than
>> >the
>> >usual soft soldered joints? Wondering if it's worthwhile silver
>> >soldering
>> >the tank circuit.
>> >
>> >73
>> >
>> >Peter G3RZP
>>
>> Peter,
>> I would think that a good hobby and crafts 4% silver solder would
>be
>> superior. I use that mix here for most QRO RF work, particularly at
>VHF
>> where I have had regular solder melt while debugging a tank
>circuit.
>>
>> It is also recommended in just about every cavity article I have
>read.
>>
>> 73 Carl KM1H
>>
>>
>>
>> >--
>> >FAQ on WWW: http://www.contesting.com/ampfaq.html
>> >Submissions: amps@contesting.com
>> >Administrative requests: amps-REQUEST@contesting.com
>> >Problems: owner-amps@contesting.com
>> >Search:
>http://www.contesting.com/km9p/search.htm
>> >
>> >
>>
>> ___________________________________________________________________
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>> --
>> FAQ on WWW: http://www.contesting.com/ampfaq.html
>> Submissions: amps@contesting.com
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>
___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
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Problems: owner-amps@contesting.com
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