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Old 17th Jan 2022, 12:35 pm   #1
6SN7WGTB
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Default Bush DAC90A - dial pointer colour? If any...?!

Just restoring one of the above.

I'm intending to respray the dial lamp 'reflector' white, and may replace the aged and yellowing translucent panel.

The dial pointer obviously just needs to be dark to show up, which it is as it's a bit rusty looking!

However, trivial though it is, was the pointer any specific colour when new?

It might just be where the rust has rubbed, but I think I can detect a faint red bit on the flat top part...?
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Old 17th Jan 2022, 1:05 pm   #2
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Yes, red.
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Old 17th Jan 2022, 1:13 pm   #3
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

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Originally Posted by Ian - G4JQT View Post
Yes, red.
Thanks Ian, might as well do that while in there.
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Old 17th Jan 2022, 3:22 pm   #4
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

That's unusual I don't think I have ever come across a DAC90A that had a rusty pointer like that, even when they were totally corroded wrecks.

Was the dial glass missing?

Cheers

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Old 17th Jan 2022, 8:47 pm   #5
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Humbrol RED Enamel for the Pointer and Halfords Lada Cream for the Refelector.
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Old 17th Jan 2022, 8:59 pm   #6
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Quote:
Originally Posted by Cobaltblue View Post
That's unusual I don't I have ever come across a DAC90A that had a rusty pointer like that, even when they were totally corroded wrecks.

Was the dial glass missing?

Cheers

Mike T
Not at all - it's all in nice condition just the pointer is devoid of colour and very slightly surface corroded.
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Old 17th Jan 2022, 8:59 pm   #7
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

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Originally Posted by DonaldStott View Post
Humbrol RED Enamel for the Pointer and Halfords Lada Cream for the Refelector.
Splendid, thanks!

EDIT: I suspect Lada colours may be almost as old as the radio - I suppose any near cream will do...

Last edited by 6SN7WGTB; 17th Jan 2022 at 9:22 pm.
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Old 17th Jan 2022, 10:20 pm   #8
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

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Originally Posted by 6SN7WGTB View Post
I suspect Lada colours may be almost as old as the radio - I suppose any near cream will do...
Any ‘near cream’ will do but that Halfords Lada Cream is almost an exact match for any vintage valve radios I’ve restored.
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Old 18th Jan 2022, 2:15 pm   #9
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Should the engraved lettering on the knobs be highlighted in cream too?
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Old 18th Jan 2022, 2:54 pm   #10
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

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Originally Posted by 6SN7WGTB View Post
Should the engraved lettering on the knobs be highlighted in cream too?
Only if you have a steady hand, a small enough brush and the appropriate paint!

In the past I've used something like this:-

https://www.amazon.co.uk/gp/product/B00GOYMLSK/
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Old 18th Jan 2022, 5:14 pm   #11
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Have had good results using tissue or a cloth to wipe paint over the lettering, then wipe off excess. May take a few runs over to build up but brings good results.

Ian
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Old 18th Jan 2022, 6:02 pm   #12
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

The original red pointer colour may have faded.

Red paint seems to be more vulnerable than other colours to 'bleaching' in sunlight.
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Old 18th Jan 2022, 6:49 pm   #13
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

I picked out the old paint with soap/water/tooth brush/cocktail stick and repainted with Tipex fluid. No need to be careful cos once it dries rub off the unwanted places with furniture polish and a cloth.
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Old 18th Jan 2022, 10:04 pm   #14
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

It was a bit fiddly.

I cleaned them with a nailbrush as years of grime was in the engraving.

On the Tone knob it showed signs of a more gold-coloured paint, so I opted for a brass enamel from the modelling box.

Nothing that won't tidy up with a buff and shine once hardened.
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Old 19th Jan 2022, 10:29 am   #15
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Default Re: Bush DAC90A - dial pointer colour? If any...?!

Excellent outcome - well done!
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