[volt-nuts] Fluke 720a self calibration repair
Tony
vnuts at toneh.demon.co.uk
Sun Sep 27 14:15:31 EDT 2015
Apologies - my mistake - I wasn't paying sufficient attention when
Google decided that this was a perfect match when searching for 300SP-1-502:
http://uk.farnell.com/webapp/wcs/stores/servlet/Search?st=3400s&catalogId=15001&categoryId=700000005471&langId=44&storeId=10151
But £180.27 each whereas Newark, the US arm of Farnell only want $120 or
approx £80 for the same part! Are there really that many Brits who put
up with being ripped-off to these levels?
Tony H
On 26/09/2015 01:27, Charles Steinmetz wrote:
> Charles wrote:
>
>>> I had to look it up. The company was Arrow (800 833 3557). The pots
>>> were manufactured by Bournes with a manufacturer part number of
>>> 300SP-1-502. Unit cost $7.73 in 2011. I bought 26 so my cost was
>>> about $200. I wanted a "Manufactured in America" part but can't
>>> remember if that was too pricey or not.
>
> Tony wrote:
>
>> They are now $92.55 from Arrow now and Farnell want over $200 each if
>> you buy 25 or more!!!! There don't seem to be any obvious cheap
>> alternatives for 10 turn 20ppm/C 5W pots.
>
> The original pots were Bunker Ramo-Eltra (later, Bunker Ramo-Amphenol)
> P/N 3800P-502. These were 20-turn, 5k, 10%, 1W, +/-50 ppm/C wirewound
> parts in the 34b rectangular package. The Bourns 3005P-1-502 matches
> these specifications (I suspect "300SP" in Charles's message was a
> typo). I do not know if the pin layout is the same as the 3800P-502.
> Verical has the lowest price on the 3005P-1-502 that I could find in a
> quick search, $7.68 each. Others charge from $9 to $14.
>
> Tony -- what part number were you quoting specs and prices for? I
> found nothing searching for "300SP-1-502."
>
> Best regards,
>
> Charles
>
>
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