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

G6Tanuki · 23rd Oct 2019, 4:50 pm

I've got a Philips B2X67U/65 here which has the 'expected' mid-1950s B9A lineup of UCH81 UF89 UBC81 UL84 - but also an old-style 8-pin UY42!

And yes it's specified to run on 110-240V, with the rectifier getting full line-voltage in the "240V" series-dropper setting.

I can only think that there must have been some financial benefits to using an old-style B8 valve in the lineup with the more-modern B9A bottles.

Using-up old stock? A Tax-writeoff of 'remaindered' parts?? Methinks we will never know.

23rd Oct 2019, 4:50 pm	#17
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,005	Re: UY41 Valve. I've got a Philips B2X67U/65 here which has the 'expected' mid-1950s B9A lineup of UCH81 UF89 UBC81 UL84 - but also an old-style 8-pin UY42! And yes it's specified to run on 110-240V, with the rectifier getting full line-voltage in the "240V" series-dropper setting. I can only think that there must have been some financial benefits to using an old-style B8 valve in the lineup with the more-modern B9A bottles. Using-up old stock? A Tax-writeoff of 'remaindered' parts?? Methinks we will never know.