>I have a homebuilt amplifier with 2 8112 tubes running in AB1, the
>amplifier are working nicly on all bands exept 160m. On this band as the
>tubes get hot during transmission the loading sems to get heavier an
>heavier and I have to retune the amplifier during transmission to avoid
>exceed screen curent when I start to transmitt. It behave like this on
>any antenna and with every rig driving it. Do anyone have an idea wath
>couse the problem?
>
The tune and/or load padder capacitors for 160m are not up to carrying
the current.
Rich---
>
>
>--
>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
R. L. Measures, 805-386-3734, AG6K
--
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
|