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 _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
