[RRDXA] gu74b and gu78b for sale

[ON4CT]

Hello

 

I have  4  NOS gu74b for sale, preheated and tested in 91b amp.   They meet
all specs. 

 

Also  2 GU78B ,  2008/2010 year.   Prehaeted and tested   in om power amp.
The meet all specs. 

 

E mail of this lost for more info. 


Dirk on4ct

 

 

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