Useful Components: Electronics kits with fully detailed instructions online.
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Reviews
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Duncan on Feb 27, 2026
5 out of 5 starsAmazing knobs, really look great on my mixer.
Henry James responded on Mar 2, 2026
Thankyou for your positive review and the five stars. Always nice to get some different colour on a mixer:)
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Rcimp on Jan 12, 2026
5 out of 5 starsGreat item. Exactly what I needed.
Henry James responded on Jan 16, 2026
Thankyou for you positive review and the 5 stars.
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Jonathan on Mar 11, 2026
5 out of 5 starsgreat customer service and always fast delivery - Thank you
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Kelly on Feb 26, 2026
5 out of 5 starsEverything arrived fast with no issue, satisfied
Henry James responded on Mar 2, 2026
Thankyou for your positive review and the five stars.
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Tim on Feb 17, 2026
5 out of 5 starsSadly they were too big for my NanoKontrol2, but James refunded me when I sent them back. Great little things though - lovely colours.
Henry James responded on Mar 2, 2026
Thankyou for your positive review. Shame the knobs didn't fit.
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Etsy buyer on Feb 5, 2026
5 out of 5 starsAs described. No issues with purchase.
Henry James responded on Feb 14, 2026
Thankyou for your 5* review
About HJWElectronics
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The beautiful trace that you get on an oscilloscope when playing with some custom built Ambisonic surround-sound gear. -
Loud reception using the Useful Components crystal set radio kit on a farm fence while out hiking in Shropshire. -
The BTR/3 Stereo tape machine at Radio Glen in Southampton. We still used that machine in 1993. After I'd fixed it :) -
Sometimes one has to erect a big crystal radio aerial to see how good it is. This 100 meter one was pretty good:) -
I dabble with surround-sound and annoyingly claim to have built the first *cheap* soundfield microphone in 2003.
Shop about video description
Shop members
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Henry Walmsley
Owner, Everything
Hello. I'm an electronics engineer who sells kits and electronics parts for repair jobs and projects. For UK dispatch, put anything in your shopping basket from any listing for one postage charge, but watch out for the higher postage lumpy items.
Production partners
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CLIFF Electronic Components
Redhill, England
I supply useful CLIFF parts that no-one else will stock, e.g. all available colours of one type of control knob rather than just the black or red variant found at other retailers. These are frquently used by customers for fixing and customising vintage mixing desks and equipment.
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Cancellations: accepted
Request a cancellation: before item has shipped