On Sat, 5 Dec 1998 23:35:10 -0600 n4kg@juno.com (T A RUSSELL) writes:
>
>Don't forget about COOLING.
>
>Is a MUFFING FAN really enough to cool an 8877?
>
>de Tom N4KG
I was concerned about that also but it seems more than adequate when I
tested at 1500W key down for 60 seconds.
Altho not shown on the schematic there are series resistors in the fan
line to slow it down, typical of other Dentrons. Change the value or use
a relay keyed speed up in TX as in the MLA-2500 for more cooling
overhead.
73 Carl KM1H
>
>
>On Sat, 05 Dec 1998 21:50:31 -0500 NI4L <ni4l@bellsouth.net> writes:
>>
>>Lets talk about this amp....
>>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.
>>anyone tried this? what about the non existing grid circuit
>>protection?
>>any help on this subject would be greatly appreciated.
>>chris
>>
>>
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>>
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