On Mon, 12 Oct 1998 11:12:10 +0100 "Doug Klein, K4LT" <k4lt@fuse.net>
writes:
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>Ok, hello out there to all the technical guru's! This is Doug, K4LT
>and =
>I am NOT much of a technical wiz. Can anybody help me?
>
>I have my Henry 2k Ultra on the workbench and am wondering two things
>=
>(it has a pair of 8873's in it)
>
>1. Is 700 watts output normal for this amp? Should I replace the
>tubes =
>to get - say 1,200 watts or even 1,500 watts output?
1000-1200 W is the safe max and even then keep the heat sink cool.
New tubes are around $500 each so the choice is yours.
>
>2. When replacing the tubes the manual says apply heat compound to
>the =
>tubes to bond them to the heat sink blocks. It specifically says not
>to =
>use silicon compound. What is heat compound? Where to do I find it?
>=
>Any special handling required?
Call Henry for a guaranteed correct answer. I have been using RatShack
silicone based compound on the Heathkit SB-230 ( single 8873) for years
with no problems but maybe we will both learn something.
Heath just calls it thermal compound and has no warnings about
substitutes. They do warn of eye and clothing danger while using.
73 Carl KM1H
>
>Thanks in advance for any replies.
>
>Vy 73,=20
>
>Doug K4LT
>k4lt@fuse.net
>
>
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><DIV><FONT color=3D#000000 size=3D2>Ok, hello out there to all the =
>technical=20
>guru's! This is Doug, K4LT and I am NOT much of a technical =
>wiz. Can=20
>anybody help me?</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>I have my Henry 2k Ultra on the =
>workbench and am=20
>wondering two things (it has a pair of 8873's in it)</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>1. Is 700 watts output
>normal =
>for this=20
>amp? Should I replace the tubes to get - say 1,200 watts or even
>=
>1,500=20
>watts output?</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>2. When replacing the tubes
>=
>the manual=20
>says apply heat compound to the tubes to bond them to the heat sink=20
>blocks. It specifically says not to use silicon compound.
>=
>What is=20
>heat compound? Where to do I find it? Any special
>handling=20
>required?</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>Thanks in advance for any =
>replies.</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>Vy 73, </FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV>
><DIV><FONT color=3D#000000 size=3D2>Doug K4LT</FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2><A=20
>href=3D"mailto:k4lt@fuse.net";>k4lt@fuse.net</A></FONT></DIV>
><DIV><FONT color=3D#000000 size=3D2></FONT> </DIV></BODY></HTML>
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