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[AMPS] info on tubes required

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Subject: [AMPS] info on tubes required
From: vk6apk@eon.net.au (Alek Petkovic)
Date: Fri, 27 Aug 1999 06:42:30 +0800
I may be up the wrong tree and this is right off the top of my head but
could your friend have been offered a pair of Philips TB3.5-750 tubes? They
look similar and fit in the sockets but I think they are tetrodes.

Alek,
VK6APK.



At 05:54 PM 08/26/1999 +0200, John Fielding wrote:
>
>A friend has been offered some replacement tubes for his HB amp.  The amp
runs two 3-500Z
>but recently one has developed a problem.  He has been offered two new
tubes but these
>are 3-750Z.  I have never heard of these and can't find any reference to
them in the
>various web sites and data books at my disposal.
>
>Anyone know about this animal, heater same as 3-500Z?
>
>John   ZS5JF
>
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