Yes iwas planning on using a double toroid wrapped with glass tape a heavy
duty bandswitch,and some 3/8 copper tubing for the tank. As i mention eariler
this amp is only set up for 40 meters.so all that will come out. I was told
that the orginal tank circuit was stranded wire insulated wound on a formar
tube, that it would really get hot after 500 wattts key down for 1 min.
Having not seen the orginal myself i'm just relying on what i was told. I may
be out in left feild some where i've only done 2 other amp projects and i'm
still kindof a newbee at it. They say "it will come to those who wait". Yes
Carl id be interested in the tank circuit and peices what do you have to have
for them?
Also another thing puzzels me as to the p/s being set up for 120v/220v how
would this thing run on 120v seems like everything would get really hot?
Chris 73s
km1h@juno.com wrote:
> 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
> >
> >
> >--
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> >
> >
>
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