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Freya · 5th Mar 2015, 10:36 am

Cant find the booklet in amongst the piles of taylor stuff I have accumulated.
Here is the wire colour info from the octal plug to B12A socket.
PLUG

2 white
3 black
4 green
6 blue
7 red

B12A

1 white - heater
2 blue - grid
10 green - A1
11 black - cathode
12 red - heater

Hope you can interpret it ok, bottom left is the mazda Octal for CRM92 etc.
There are a small percentage of tubes that have a lower beam current (50uA) that may read bad on the scale when they are actually ok. Remember the meter is 200uA FSD.

5th Mar 2015, 10:36 am	#5
Freya Octode Join Date: Jan 2009 Location: Falmouth, Cornwall, UK. Posts: 1,990	Re: Can a B&K 470 be used with a triode CRT? Cant find the booklet in amongst the piles of taylor stuff I have accumulated. Here is the wire colour info from the octal plug to B12A socket. PLUG 2 white 3 black 4 green 6 blue 7 red B12A 1 white - heater 2 blue - grid 10 green - A1 11 black - cathode 12 red - heater Hope you can interpret it ok, bottom left is the mazda Octal for CRM92 etc. There are a small percentage of tubes that have a lower beam current (50uA) that may read bad on the scale when they are actually ok. Remember the meter is 200uA FSD. Attached Thumbnails __________________ Stephen _________"It`s only an old telly" ___ Last edited by Freya; 5th Mar 2015 at 10:54 am.