On Sat, 05 Dec 1998 21:50:31 -0500 NI4L <ni4l@bellsouth.net> writes:
>
>Lets talk about this amp....
A real sleeper IMO and capable of nice performance. I have 2 of them here
on the bench.
>Not much mentioned anywhere on this amp. 8877. What about the
>upgrade,Peter dahl trans, cap, dioides,new tank circuit that will
>handle
>the new p/d trans.
The Tune cap is the same as used in Ameritron amps; will handle about
3400V and the rest of the tank has better quality parts than the large
Ameritron AL series. I would get rid of the antenna relay and go with a
vacuum ckt such as Rich's design; less chance of arcing tank components
plus I smoked the original with 1300W on 6M so it would be marginal on
10M at 2200W +.
The rectifier/filter board will handle about 3400VDC no load safely, the
existing supply is under 2500V key down.
hat about the non existing grid circuit
>protection?
Or metering. One of the amps here has been upgraded with metering and
overload, a bit touchy but works OK.
I can copy the meager manual and the other stuff for a large SASE.
73 Carl KM1H
>any help on this subject would be greatly appreciated.
>chris
>
>
>--
>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
>
>
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