Pretty sure the 2010 edition still features the amp using the
unobtainable 4CX1600B (GU91B) tube.
Woulda thought they'd go with a tube that is available.
73, Alek.
At 07:14 AM 13/11/2010, kb5gt@cableone.net wrote:
> Anyone out there in Radio Land who has bought an ARRL HBK for
> 2010, can you tell
>me if there are any HF RF power amp construction articles included?
>They advertise
>info on radio restoration and repairing amplifiers with surplus
>parts ( I think ).
>I am reluctant to buy one, unless there is something really good in it.
>Any info would be appreciated.
>73, Ed, KB5GT
>
>
>
>
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