AZ11 (OSW3121) is electrically the same tube like AZ1 or RGN1064, just in different socket
AZ11 Philips AZ1 RGN1064 Made in EnglandAZ11 Philips AZ1 RGN1064 Made in EnglandAZ11 Philips AZ1 RGN1064 Made in England

In original boxes, perfect prints, Mullard, Blackburn codes

 

Click to see all Rectifiers in stock

 

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