the relay is rated at 250 volts at 1000ma or 2000 ma at 125 volts
the relay is used for negative line keying
the mosfet will only handle positive key lines, but will do so at 6
amps and 250 volts.
the newer mosfets I am using will do 10 amps at 250 volts.
btw... ten tec makes the cases for me and they are painted the same
color as the Jupiter, so it is as perfect match to the jupiter as you
can get
Mike, WB8VGE
SunLight Energy Systems
The Heathkit Shop
http://www.seslogic.com
http://www.theheathkitshop.com/
On Mar 26, 2006, at 3:25 PM, Ken Brown wrote:
> Hi Mike,
>
> That looks like a nice product. I have a couple of questions. The
> specifications list says the relay contacts are good for 2000 mA at 125
> volts. Many older amplifiers have around -150 to -180 VDC that needs to
> be grounded to key them. Later in the text it says you can key the
> Heathkit's -130 Volts. Is this unit using a 125 volt rated relay to do
> that? What about the MOSFET output rated at 250 volts? Can that output
> be used to pull a negative DC voltage to ground? Or will that only work
> with positive voltages?
>
> Thanks,
>
> Ken N6KB
>
>
> Mike Bryce wrote:
>> dave...
>>
>> check out my ampkeyer, here's the link:
>>
>> http://www.theheathkitshop.com/ampkeyer.html
>>
>> notice at the bottom of the page, there's a photo with the ampkeyer
>> and
>> the jupiter.
>>
>> the ampkeyer is simple to use, and so simple to hook up even a caveman
>> can do it.
>>
>> mike
>>
>> Mike, WB8VGE
>> SunLight Energy Systems
>> The Heathkit Shop
>>
>> http://www.seslogic.com
>> http://www.theheathkitshop.com/
>>
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>>
>>
>
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|