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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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1st Nov 2013, 11:00 pm | #1 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,274
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Taylor (aka Windsor) 65b service oscillator again
Dad's just waltzed through the door with one of these. Unlike my old AVO rf generator, this is much prettier and intuitively laid-out. So I'd like to get it going. Problem is, it's all butchered inside. The main oscillator valve has been changed for a 12AT7 (should be a 6J5!) and half the internal wiring and some components are missing.
I have the manual from 'jon's valve page' but, as already discussed on the forum, it has no component values. Can anyone help? (photo courtesy of REME). Kevin
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Kevin |
2nd Nov 2013, 12:24 am | #2 |
Octode
Join Date: Oct 2007
Location: Exeter, Devon, UK.
Posts: 1,554
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Re: Taylor (aka Windsor) 65b service oscillator again
Taylor 65B and 65C signal generator. I have found the circuit with component values for the 65C. Also uses a 6J5, so may be very similar to the earlier model. wme_bill
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2nd Nov 2013, 1:01 am | #3 |
Moderator
Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,902
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Re: Taylor (aka Windsor) 65b service oscillator again
If I recall, the 6J5 had characteristics similar to the ECC82 rather than ECC81 triodes. Maybe someone was trying to get it to go as high as the scale reaPutting it all back ought to be easy provided the modulation/oscillator transformer is still there.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done |
2nd Nov 2013, 9:29 am | #4 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,991
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Re: Taylor (aka Windsor) 65b service oscillator again
Hi Kevin,
I have what you need in the way of diagrams, PM me with your email address and i will send them along.
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Stephen _________"It`s only an old telly" ___ |
2nd Nov 2013, 3:17 pm | #5 |
Dekatron
Join Date: Jun 2009
Location: Staffordshire Moorlands, UK.
Posts: 5,274
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Re: Taylor (aka Windsor) 65b service oscillator again
thanks bill, 65c looks very similar. Stephen PM sent
One of the major problems is that the locknut on the band selector has worked loose with the result that when the knob was twisted the whole tuning assembly rotated and ripped all the wires off the coils. The original osc valve sat on a metal sub assembly, this has totally been replaced to accomodate the new miniature valve with its 1970's licorice-allsort polyester capacitors. But I shan't be beaten and will annotate & share the unmarked taylor diagrams as and when its all working.
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Kevin |