[Amps] measurement of Screen grid current

[Hsu]

That is not a good ider.Most of  the P/O
couplers are  not for  measurement.
 Please view  the manual of G3SEK's 
tetrode board,I think you can find want you want
     73!Hsu
----- Original Message ----- 
From: "Allan Greening" <vk3pa at vk3pa.com>
To: <amps at contesting.com>
Sent: Sunday, January 04, 2009 7:13 AM
Subject: [Amps] measurement of Screen grid current


> Has anyone used a AC  photo-optocupler like PC8144 to measure both forward
> and reverse curent flow in a "Tetrode" (4CX1000A) ..screen grid supply??
> say p/o coupler across a 1 ohm/6w resistor in the Sg line es the p/o
> feeding a LED bar readout.. yes i know u wont know if its + or - current
> flow but so wot as long as their is min current flow at  tx'n!! de vk3pa
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