Taylor 45c ECL86 settings - UK Vintage Radio Repair and Restoration Discussion Forum

Ted Kendall · 19th Aug 2018, 1:17 pm

I've just fired up Dad's old Taylor 45c and, to my surprise I must admit, it's working and giving sensible answers. One point, though - the books don't give settings for ECL86. Anybody know these?

WME_bill · 20th Aug 2018, 3:05 pm

Taylor Valve tester ECL86.
I think you will find it cannot be tested, because there is no position of Switch C which connects the pentode control grid (pin8) and the screen g2 and cathode.
Position C16 connects cathode and screen but leaves g1, pin8 flying.
You will have to modify the positions on switch C,or use a flying lead to connect the grid (circuit5).
You are also stuck over the triode section of the valve.
I posted some notes years ago on modification I made in 1980 to switch C which permits a further range of valves to be tested..
You will have to work it out using the manual from the Circuit Selector Switch Positions diagram and the Circuit wiring around Switch C (which is not always consistent for all versions of the model 45C on the higher positions of switches A and C).
You will need a nice quiet room for an hour to get it worked out. It can be very confusing.
wme_Bill

AC/HL · 20th Aug 2018, 6:57 pm

Some help here: https://vintage-radio.net/forum/showthread.php?t=87714

Ted Kendall · 20th Aug 2018, 9:53 pm

Oh boy, what a can of worms! I wonder whether there's a Windsor diagram somewhere...mine's a straight 45c.

19th Aug 2018, 1:17 pm	#1
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Taylor 45c ECL86 settings I've just fired up Dad's old Taylor 45c and, to my surprise I must admit, it's working and giving sensible answers. One point, though - the books don't give settings for ECL86. Anybody know these?

20th Aug 2018, 3:05 pm	#2
WME_bill Octode Join Date: Oct 2007 Location: Exeter, Devon, UK. Posts: 1,554	Re: Taylor 45c ECL86 settings Taylor Valve tester ECL86. I think you will find it cannot be tested, because there is no position of Switch C which connects the pentode control grid (pin8) and the screen g2 and cathode. Position C16 connects cathode and screen but leaves g1, pin8 flying. You will have to modify the positions on switch C,or use a flying lead to connect the grid (circuit5). You are also stuck over the triode section of the valve. I posted some notes years ago on modification I made in 1980 to switch C which permits a further range of valves to be tested.. You will have to work it out using the manual from the Circuit Selector Switch Positions diagram and the Circuit wiring around Switch C (which is not always consistent for all versions of the model 45C on the higher positions of switches A and C). You will need a nice quiet room for an hour to get it worked out. It can be very confusing. wme_Bill

20th Aug 2018, 6:57 pm	#3
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Taylor 45c ECL86 settings Some help here: https://vintage-radio.net/forum/showthread.php?t=87714

20th Aug 2018, 9:53 pm	#4
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Re: Taylor 45c ECL86 settings Oh boy, what a can of worms! I wonder whether there's a Windsor diagram somewhere...mine's a straight 45c.