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FERNSEH · 20th May 2021, 4:16 pm

I believe the Cossor 171K had a tetrode gun assembly and was similar or equivalent to the likes of the Emitron 17ASP4.
The Mullard Maintenance Manual informs us the the MW43-64 is a direct replacement for the Cossor 172K. Certainly, from 1957/8 all domestic Cossor CRTs were made be Mullard.
The Cossor 173K has the Mullard-Philips pentode gun assembly and was an MW43-69.
DFWB.

20th May 2021, 4:16 pm	#10
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Help with some old TV tubes. I believe the Cossor 171K had a tetrode gun assembly and was similar or equivalent to the likes of the Emitron 17ASP4. The Mullard Maintenance Manual informs us the the MW43-64 is a direct replacement for the Cossor 172K. Certainly, from 1957/8 all domestic Cossor CRTs were made be Mullard. The Cossor 173K has the Mullard-Philips pentode gun assembly and was an MW43-69. DFWB. Last edited by FERNSEH; 20th May 2021 at 4:26 pm.