The resistor serves as a "fuse" for the high voltage line going to the linear.? It fails (opens) due to excessive current in the load, NOT problems in the power supply itself.? Ideally, a resistor in this application should be non-inductive, and flameproof, and have a rapid onset failure mode.
-----Original Message----- From: Tom Bowman <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] Sent: Tue, 6 Nov 2007 1:42 pm Subject: Re: [drakelist] IRC .82ohm 2W SPH resistor Hi, Where is the resistor being used in the circuit? Any idea why a 1 Ohm, 5% SPH resistor 66-SPH1R00JLF Mouser, would not work? 73, tom, WA3REY On Nov 6, 2007 12:49 PM, MT <[EMAIL PROTECTED]> wrote: MT <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Wow, I never had any idea how difficult it would be to replace this item. I have called Mouser, Digi-Key, Newark, Future, Marsh, TTI, as well as several local vendors. ?No one has this item. ?When Harbach told me they didn't have any and couldn't find a source, I thought I could just do some quick searching and find this item. ?Boy, was I wrong. I called directly to IRC and spoke with their sales distributor. ? He advised there are 200 pieces in the factor in Barbados but I would need to order $50 worth of them through a vendor in WI and it will be at least 2 - 3 weeks. ?This is the only promising lead so far. I have been calling for two days and I'm not having any success. ?It's not that I don't want to pay a minimum order fee, the resistors don't exist at any of the places which have minimum orders. I found a place called Oxygen Electronics. ?They have some, however will not sell to the public. I have about 5 hours into the project so now I am determined to find a source for this item. Mark N9UM ---------------------------------------------------------------------- Submissions: ? ? ? [EMAIL PROTECTED] Unsubscribe: ? ? ? ? [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: ? [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: ? www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- -- _______________ ? ? ? ?No Baloney ________________________________________________________________________ Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com
