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[AMPS] Philips 5868 ?

To: <>
Subject: [AMPS] Philips 5868 ?
From: (km1h @
Date: Wed, 18 Mar 1998 15:38:49 EST
On Wed, 18 Mar 1998 12:31:50 -0700 John Lyles <> writes:
>Weeks ago, (2/7/98) Alek Petkovic - VK6APK, asked about using a 
>RS1016. The Philips/Amperex 5868 is compatible. These tubes are 
>trides, low mu, virtually useless for amateur linear amplification. 
>For raw
>RF which doesn't care about the load, such as in a dielectric heater, 
>are great. I completely described the tube on 2/9/98, perhaps you can 
>the archives of this reflector on the web to read it again. To 
>the mu of the 3-500Z is 130, the 5868 is 28. You would have low gain, 
>cannot bias these at zero bias grounded grid without cooking them, as 
>plate current would be high during idling.

I had an industrial amp that used 4 of them John....sold  the tubes since
they are in industrial demand and kept the goodies.  Would you consider
them as modulator tubes?  With AM growing that may be an option for ham
use anyway. 

73   Carl  KM1H

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