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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Protection Diodes On the Dick Smith Meter
I would like to get this modification installed on my meter. Will this
type of diode do the job: http://www.fairchildsemi.com/ds/RH/RHRD660S.pdf How many will I need and what is the proper method of installing? |
#3
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Protection Diodes On the Dick Smith Meter
I went ahead and ordered NTE1V014, as the panasonics aren't sold by
mouser. Here is the spec sheet for it: http://www.nteinc.com/specs/10to99/pdf/movs.pdf Would there be any benefit in placing more than one across the leads (in parallel)? |
#4
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Protection Diodes On the Dick Smith Meter
If I'm not mistaken this http://www.diodes.com/datasheets/ds28007.pdf is
what you typically would use for protecting your meter. I used a MOV on my meter. - Mike wrote in message ups.com... I went ahead and ordered NTE1V014, as the panasonics aren't sold by mouser. Here is the spec sheet for it: http://www.nteinc.com/specs/10to99/pdf/movs.pdf Would there be any benefit in placing more than one across the leads (in parallel)? |
#5
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Protection Diodes On the Dick Smith Meter
Oh, nevermind I see you ordered a MOV.. Good Move..
- Mike "Michael Kennedy" wrote in message ... If I'm not mistaken this http://www.diodes.com/datasheets/ds28007.pdf is what you typically would use for protecting your meter. I used a MOV on my meter. - Mike wrote in message ups.com... I went ahead and ordered NTE1V014, as the panasonics aren't sold by mouser. Here is the spec sheet for it: http://www.nteinc.com/specs/10to99/pdf/movs.pdf Would there be any benefit in placing more than one across the leads (in parallel)? |
#6
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Protection Diodes On the Dick Smith Meter
I just got a cross reference request from mouser to the Panasonics I
made last week and they suggested: http://www.littelfuse.com/data/Data_Sheets/ZA.pdf Pretty much the same thing, but .23 each, the NTE were about $1.25 each. |
#7
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Protection Diodes On the Dick Smith Meter
On 2006-05-09 11:20:09 -0700, Jeff Liebermann
said: hath wroth: I went ahead and ordered NTE1V014, as the panasonics aren't sold by mouser. Here is the spec sheet for it: http://www.nteinc.com/specs/10to99/pdf/movs.pdf Which voltage MOV did you select? My guess(tm) is that the lowest possible voltage should work. Would there be any benefit in placing more than one across the leads (in parallel)? That would allow the protection MOV to handle more overload power for a longer time. At some point, methinks a series fuse before the MOV might be a good idea. I recommend using a 22V MOV so you can still easily test car batteries for internal ESR. That is one of the abilities of the DS ESR kit! I also tested my kit to 350V @20ma. http://www.flippers.com/esrkthnt.html for my results. John :-#)# -- (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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