Thanks! I just ordered the 6 db version. Lots of interesting stuff there.
On 11/15/2010 12:54 PM, Jim Barber wrote:
> Henry radio has been selling some Florida RF attenuators on fleaBay for
> reasonable prices.
>
> http://cgi.ebay.com/New-50-Watt-Hybrid-30-dB-50-ohm-Attenuator-/390115387682?pt=LH_DefaultDomain_0&hash=item5ad4b06922
>
> If that URL doesn't work, find Henry Radio's eBay store and use the
> search term attenuator in the in-store search box.
>
> I've bought several Florida RF parts from them recently and have been
> happy with the transactions.
>
> 73,
> Jim N7CXI
>
> On 11/15/2010 12:38 PM, Vic K2VCO wrote:
>> I made a 6 db attenuator for the input of my grid-driven amplifier in order
>> to bring the
>> drive requirement up a bit and to provide a better SWR for the exciter
>> during tuning. I
>> used some film resistors from Mouser. I suspect that these have a low
>> voltage rating,
>> because one of them shorted after a few minutes of 10-meter operation. They
>> didn't show
>> any sign of heating, so I think it was a voltage/frequency issue and not
>> simply overheating.
>>
>> Anyway, I need a 50-ohm attenuator that can dissipate about 40 watts and can
>> be used at
>> HF. Anything from 3 to 6 db will work. I had a Henry solid-state amp that
>> had a couple of
>> these, which bolted to the heat sink. Does anyone know where I can buy such
>> a thing, or
>> how to make one from reasonably priced parts?
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
--
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|