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Hints, Tips and Solutions (Do NOT post requests for help here) If you have any useful general hints and tips for vintage technology repair and restoration, please share them here. PLEASE DO NOT POST REQUESTS FOR HELP HERE! |
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20th Mar 2007, 2:37 pm | #1 |
Rest in Peace
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
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EKCO SH 25 Volume Control problem solved
The volume control in this 1932 Radio had been damaged, due to having been turned past its' end stop. It is a wirewound pot., with an unusual value of abt 8k3. Not wishing to attempt to rewind the track, or replace the whole control, which includes a concentric local/dx sitch, with something non-standard, I compared its' physical size with a modern Colvern 3W WW Pot., and fitted a 10k insert from one of these inside the original casing(which dissasembles easily, since it is held together with 3 nuts & bolts), reassembled the whole pot, having first, cleaned the switch contacts. The result is a working radio, which still looks original, with the correct knobs refitted, and controls functioning as designed! The Colvern Pots., or a similar, but different brand one are available from RS and Farnell, should anyone else experience a similar problem
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20th Mar 2007, 6:57 pm | #2 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,866
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Re: EKCO SH 25 Volume Control problem solved
That's clever
Any pictures for us? Nick. |
21st Mar 2007, 12:39 am | #3 |
Rest in Peace
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
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Re: EKCO SH 25 Volume Control problem solved
Nick,
Sorry, I didn't think about taking photos. Maybe at a more opportune time I will draw sketches showing what's involved |