Re: Ultra miniature pots anywhere in the UK?U

N Cook wrote:
Ron(UK) <ron@xxxxxxxxxxxxxxxxxxx> wrote in message
news:ZLqdnTaDIYfC3xjYnZ2dnUVZ8s7inZ2d@xxxxxxxxx
N Cook wrote:
Or a good keyword for searh engines
Well they seem smaller than the sub miniature classification, plain
linear
or logs, not funny balance pots or vol pots with low vol compensation
take-offs etc
Body of order 10 to 12mm diameter or edges but length to end of spindle
35mm. I'm getting a bit tired of trying to find
space for sub-miniature size and packing out for the spindle to poke
through
the chassis. The wipers on these seem so flimsy that the lubricant
inside
going claggy seems to be enough to lift the tiny wiper wishbones to
break
contact. The tracks are never worn. I'm reluctant to clear out the
grease
and replace as they just seem mechanically so flimsy anyway, the wiper
contacts must be no more than order of 0.5mm.

Rapid Electronics -
http://www.rapidonline.com/

Ron


--
Lune Valley Audio
Public Address Systems
Hire Sales Maintenance
www.lunevalleyaudio.com

Ta, best source so far the Vishay Spectrol ones on Rapid. Strangely the
Vishay site datasheets for those 148/149 types don't have the spindle
lengths but scaling from the 12mm they are about 25mm and also 1/4 inch
diameter. That has solved the pcb footprint aspect.
It looks as though I'll have to get a range of them , cut back their shafts
a bit and add cut off long shafts from other pots or 5mm or 1/4 inch
diameter rod plus ferules for extenders up to 35 or 40 mm, at least that way
I won't have the knob mismatch problem of cicular/splined/small D/large
D/5mm and 1/4 inch. Just too many variables unless your a manufacturer
ordering 1000 or more specials


Can you still get those brass shaft extenders (ooer missis!) RS and Farnells used to sell them? I must admit that I`ve extended one or two using shaft sawn off old pots and glue lined heatshrink sleeving.

Ron


--
Lune Valley Audio
Public Address Systems
Hire Sales Maintenance
www.lunevalleyaudio.com
.

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