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Sets, Parts and Service Information Wanted (private buyers only, no swaps) If you need help obtaining components, sets or equipment, post a message here. Private buyers only - no traders. No swaps.

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Old 5th Dec 2022, 5:30 pm   #1
cooperman
Tetrode
 
Join Date: Feb 2018
Location: Cheshire, UK.
Posts: 84
Default Pot knob wanted for Armstrong 400 series

I've been fixing an Armstrong 426 tuner/amp. Unfortunately the innards of one of the knobs has crumbled. I was wondering if anyone might have a spare one they could sell to me? The knobs for the later more common 500 series do not fit unfortunately.

As the outer shell of the knob is still OK, it might be possible to glue a smaller knob inside it. If no-one has an original item, perhaps someone has one that has an an outside diameter of 16mm or less and is suitable for a 1/4 (6.4mm) D type shaft?

Thanks in advance for any help with this.

Some pictures are attached.
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Old 5th Dec 2022, 7:36 pm   #2
Restoration73
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Default Re: Pot knob wanted for Armstrong 400 series

I don't have an original knob, but one that will do your second solution.

Send a PM if of interest.
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Old 6th Dec 2022, 10:28 am   #3
captainpugwash
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Default Re: Pot knob wanted for Armstrong 400 series

Good morning,
I have this Armstrong knob but without the black side nib.
I think it came from a long gone tuner of that era.
If it is any good drop me a pm and you are welcome to it foc.
Kind regards,
David
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Old 6th Dec 2022, 10:32 am   #4
captainpugwash
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Default Re: Pot knob wanted for Armstrong 400 series

Forgot to add the picture….senior moment….honest.
David
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Old 12th Dec 2022, 10:26 am   #5
cooperman
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Default Re: Pot knob wanted for Armstrong 400 series

Many thanks to both captainpugwash and Restoration73. Mods please close this thread.
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