Carl wrote:
> QST and HRM had some theory/construction articles mostly by Eimac
> engineers.
Any idea as to what issue of QST or even year? I do have all of them on
disk except the recent ones. I don't remember one using a pair of 4CX1000s.
>
> Ive done some stripline myself but prefer a single 3CX1000A7 and 8877
> which I use on 144 and 222. I remember a dual 4CX1000A article for 2M
> that worked well.
>
The 4CX-1500B would be a drop in for the 4CX1000A except for the maximum
power capability, but running the legal limit should leave the circuit
parameters unchanged.
> These days the only 2 x 3CX800 design Im aware of is K1FO's Lunar Link
> products.
>
I'd assume they use the coax filters on the output (series of 1/4 wave
stubs IIRC). I've forgotten the name of the system.
73
Roger (K8RI)
> Carl
> KM1H
>
>
> ----- Original Message ----- From: "Roger" <sub1@rogerhalstead.com>
> Cc: <amps@contesting.com>
> Sent: Sunday, November 15, 2009 10:04 PM
> Subject: [Amps] Stripline design
>
>
>> I'm looking at building a 2-meter amp using a stripline with a pair of
>> 3-CX800's or 4CX-800's, but I've not found any real data on the design
>> (dimensions) of the actual strip line. Another possibility is building
>> the 6 'n 2 amp in the ARRL classic amp design handbook. I also have a
>> Henry 2002A using a single 3CX-800 with a strip line.
>>
>> Unlike using the tube characteristics and designing a standard Pi or
>> Pi-L network for a given Q, I've found no information on strip lines in
>> any of the hand books. Yes, there were a couple of amps using one and
>> the dimensions were given, but if the design information was there I
>> missed it.
>>
>> The only thing I found on the net were the download sites that appear
>> free until you give them your information and then they want you to
>> pay. I'd probably sign up if they told me the charges up front.
>>
>> 73
>>
>> Roger (K8RI)
>> _______________________________________________
>> Amps mailing list
>> Amps@contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
>
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