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Jim RabidWolf
IT's A ROYAL PAIN is what it is <G>
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Every time I look at one of those markings, I have to run thru it in my head - USUALLY, I get it right, though one in a while CRS creeps in (and if you don't get that treated, it turns into C.R.A.F.T.) Just give me a color code, PLEASE!!! <G> Or spell it out... Rabid Uncle Rabid ( ) We Repair Electronic Speed Controllers For Asian Mini Lathes and Mini Mills "Just Crazy Enough To Get the Job Done" (Join Rabid's Lathe/Mill Controller/Mod's List!) (Also visit BarStockEngines - join us in building without Castings!) ----- Original Message -----
From: "Ed" <edo@...> To: <7x12minilathe@...> Sent: Thursday, March 29, 2007 10:47 PM Subject: [7x12minilathe] Re: circuit board diagram I agree that it's .66 ohm. Although all manufacturers have their own way of creating part numbers, they're all pretty consistent with numbers to the right of R being decimal. If it was a 66 Ohm resistor the part number would be 5W66RJ. Here's an excerpt from the Ohmite catalog that tells you how to create their part numbers. The part number for 5 watt .7 Ohm resistor would be 805FR70 - they just happen to use F instead of W. STANDARD PART NUMBERS FOR STANDARD RESISTANCE VALUES Match value from "prefix" row with value from "suffix" column to create part number. --------------------------------------------- watts---> 5W 10W 25W 50W prefix--> 805F-- 810F-- 825F-- 850F-- --------------------------------------------- ohms | suffix | availability (see key) --------------------------------------------- 0.005 ---R005 B B 0.010 ---R010 B B 0.025 ---R025 B B 0.1 ---R10 A A 0.3 ---R30 B C --------------------------------------------- 0.5 ---R50 B C 0.7 ---R70 C C 1.0 ---1R0 A A A A 1.5 ---1R5 C B 2.0 ---2R0 C B A A --------------------------------------------- 3.0 ---3R0 B B A A 4.0 ---4R0 C B 5.0 ---5R0 B A A B 10.0 ---10R B A A A 15.0 ---15R A B A A --------------------------------------------- 20 ---20R B A 25 ---25R B B B A 30 ---30R C C 40 ---40R C B 50 ---50R B B B A --------------------------------------------- 75 ---75R B C B A 100 ---100 B B B A 150 ---150 B B A A 200 ---200 C C B B 250 ---250 B B A B --------------------------------------------- 300 ---300 A C 400 ---400 C C 500 ---500 B C B A 750 ---750 C C A B 1,000 ---1K0 C B A B --------------------------------------------- 1,500 ---1K5 B C C A 2,000 ---2K0 B B C C 2,500 ---2K5 B B 3,000 ---3K0 C A B C 3,500 ---3K5 C C --------------------------------------------- 4,000 ---4K0 B B 4,500 ---4K5 C C 5,000 ---5K0 B B B B 6,000 ---6K0 C C 10,000 ---10K B C A B --------------------------------------------- Be sure to check out for small mills and lathes. Yahoo! Groups Links |
