UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

G6Tanuki · 13th May 2014, 2:35 pm

I wonder if this could be a case of "rationalisation" by the manufacturer - different and upgraded internals (shared with some other more-popular valve?) but still badged the same as the original version?

In the same way as the original 5Y3 was directly heated but later started appearing as an indirectly-heated version with the cathodes tied to one filament-pin.

13th May 2014, 2:35 pm	#4
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: GZ34 data sheet discrepency? I wonder if this could be a case of "rationalisation" by the manufacturer - different and upgraded internals (shared with some other more-popular valve?) but still badged the same as the original version? In the same way as the original 5Y3 was directly heated but later started appearing as an indirectly-heated version with the cathodes tied to one filament-pin.