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Philips ECG 6550

galore

galore

Supporting Member
May 10, 2006
355
139
EU
#1
I've got a SVT II with Philips ECG 6550 tubes in power section. I can't find much info about these tubes other than they used to be called Sylvania ECG prior to selling the company to Philips. Does anyone have experience with them, or just any additional information?

They look like these:

a.jpg

d.jpg
 

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