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FERNSEH · 4th Mar 2018, 1:23 pm

The EL34 power pentode is a rebased development of the EL60 which was electrically identical except it has an EF50 type B9G base.
https://www.radiomuseum.org/tubes/tube_el60.html
An early version of the EL34 was a strange looking valve:
https://www.radiomuseum.org/tubes/tube_el34.html

DFWB.

4th Mar 2018, 1:23 pm	#48
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: The oddest valve? KLL32 The EL34 power pentode is a rebased development of the EL60 which was electrically identical except it has an EF50 type B9G base. https://www.radiomuseum.org/tubes/tube_el60.html An early version of the EL34 was a strange looking valve: https://www.radiomuseum.org/tubes/tube_el34.html DFWB.