? Meter to test thermoelectric potential of unknown metal
My scrap yard friend had/has a meter with two probes that when applied
to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
Bill Janssen wrote:
My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM What happened to the broken meter? |
? Meter to test thermoelectric potential of unknown metal
On Sun, 09 Oct 2005 02:18:05 GMT, the renowned Bill Janssen
wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Do you have it in hand? Unless this twigs somebody's memory, you might want to post some high-res photos of the device. It sounds like it's working on the electrochemical potential of the metals. Why do you think the meter isn't repairable? Is the movement totally destroyed? I've managed to fix some analog meter movements that looked pretty busted up. Is it taut-band or jeweled? Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
? Meter to test thermoelectric potential of unknown metal
Spehro Pefhany wrote:
On Sun, 09 Oct 2005 02:18:05 GMT, the renowned Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Do you have it in hand? Unless this twigs somebody's memory, you might want to post some high-res photos of the device. It sounds like it's working on the electrochemical potential of the metals. Why do you think the meter isn't repairable? Is the movement totally destroyed? I've managed to fix some analog meter movements that looked pretty busted up. Is it taut-band or jeweled? Best regards, Spehro Pefhany Ok its taut-band and the taut-band is broken or melted or something. So to repair this meter I would have to replace the taut-band and I think that is beyond my ability and equipment. A replacement meter would probably be less expensive than paying someone to repair this one. I have been looking for a shop that repairs this type meter but so far I have only one possible candidate. This time Google has not been my friend :-) BTW I have repaired sticky meters and such in the past. Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
Bill Janssen wrote:
My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM If they still have the probes, why don't you get your hands on an old thermocouple meter like this one on ebay: http://tinyurl.com/a9bez Connect the probes to it and play around with a couple of known metals. With that info, plus consulting an electrochemical potential table, it should be easy to "calibrate" the meter. HTH, Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "Truth exists; only falsehood has to be invented." |
? Meter to test thermoelectric potential of unknown metal
Bill Janssen wrote:
My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m HTH, Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "Truth exists; only falsehood has to be invented." |
? Meter to test thermoelectric potential of unknown metal
On Sun, 09 Oct 2005 03:47:28 GMT, the renowned Bill Janssen
wrote: Ok its taut-band and the taut-band is broken or melted or something. So to repair this meter I would have to replace the taut-band and I think that is beyond my ability and equipment. A replacement meter would probably be less expensive than paying someone to repair this one. I have been looking for a shop that repairs this type meter but so far I have only one possible candidate. This time Google has not been my friend :-) BTW I have repaired sticky meters and such in the past. Bill K7NOM Chances are that it's a standard meter movement, so you just have to figure out what the sensitivity is (and maybe the internal resistance). If there are some electronics driving it, it would likely be non-critical 1mA movement or something like that (much lower current and it compromises robustness). Why don't you crack it open and have a look? You can sub a digital meter and stick it on some known metal for the purpose of getting an idea of the sensitivity. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
? Meter to test thermoelectric potential of unknown metal
On Sun, 09 Oct 2005 02:18:05 GMT, Bill Janssen
wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM This is a pure guess based on zero evidence! If I've guessed the right system it's the electrodes that are special and the meter's pretty standard. I would expect one electrode to be a solid metal contact and the other to be some sort of electrolyte pad - perhaps a bit like a Q-tip dunked in saline solution. Dependent on the contact potential of the test metal this "battery" will develop up to about a volt with a source impedance of tens or hundreds of ohms. A a typical 1mA 100ohm meter should be OK with enough series resistance added to bring it down to the same sensitivity as the original meter. As a very long shot - are you sure the meter's dud? A completely dried out electrode pad would also give nil reading. Jim |
? Meter to test thermoelectric potential of unknown metal
Keywords:
In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID= 11&Group_ID=2 Interesting looking gadget, but not cheap. Doug White |
? Meter to test thermoelectric potential of unknown metal
Doug White wrote:
Keywords: In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID =11&Group_ID=2 Interesting looking gadget, but not cheap. Doug White Thanks, that was the type of information I was looking for. I don't think my friend will be happy with that price however. The existing meter is just a sensitive meter with some test leads. I can't test the meter sensitivity because of the broken pivot (taut-band) The meter is 7 inches wide so finding another movement will be difficult, I think. Thanks for the help Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
Hi, Bill.
I don't think the current goes through the band. It is just a spring fastened to the indicator, instead of using a shaft with jewel bearings, etc. The coils should still be ok, unless the band is gone because someone put the meter on a 12 volt storage battery and ran so much current throught the meter that the shock also took out the band. Do you have access to some sensetive meters? Most hams have one or two in a junk box somewhere. Try substituting a 100 microamp meter and see if the thing will give any indication. Also try a digital multimeter using the lower current ranges as a substutute meter movement. It won't care how it's wired or minimally overloaded a bit. Sounds like a good weekend project! Good luck, Paul KD7HB |
? Meter to test thermoelectric potential of unknown metal
Doug White wrote:
Keywords: In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID =11&Group_ID=2 Hmm, it appeared busted to you? I wonder if that's got anything to do with something I read in the business section of the Boston Globe within the last couple of days about a couple of the upper eschelon internet "backbone" data carriers who are having some sort of hissy catfight? The article said that could possibly disrupt internet communications between parts of the web in different geographic areas. I checked that tinyurl before I posted it, and it worked. I always do that, because of my long standing anality about hating to be cought in a mistake by anyone other than myself. :-) I checked just now and that tinyurl still worked fine from here in Red Sox country, where we're in mourning for the next week. Interesting looking gadget, but not cheap. That's what I thought too. Looking at its two replacement "probes" (at $500 EACH) I gather that one is a Peltier thermoelectrically cooled plate and the other one is a heated probe. I'm assuming that's done to magnify the thermoelectric potential effect, to make it easier to distinguish between different alloys in the same metal "family". Anyone here able to confirm my speculation? Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "Truth exists; only falsehood has to be invented." |
? Meter to test thermoelectric potential of unknown metal
Keywords:
In article , Jeff Wisnia wrote: Doug White wrote: Keywords: In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_I D=11&Group_ID=2 Hmm, it appeared busted to you? I wonder if that's got anything to do with something I read in the business section of the Boston Globe within the last couple of days about a couple of the upper eschelon internet "backbone" data carriers who are having some sort of hissy catfight? The article said that could possibly disrupt internet communications between parts of the web in different geographic areas. I checked that tinyurl before I posted it, and it worked. I always do that, because of my long standing anality about hating to be cought in a mistake by anyone other than myself. :-) I checked just now and that tinyurl still worked fine from here in Red Sox country, where we're in mourning for the next week. I live near Boston, and although it didn't work this morning, the link seems to be OK now. I don't know exactly how tinyurl works, but they may have had a temprorary hiccup. Doug White |
? Meter to test thermoelectric potential of unknown metal
Doug White wrote:
I live near Boston, and although it didn't work this morning, the link seems to be OK now. ... Yeah, me too. And IIRC, it wasn't a 404 message, but something really weird. Bob |
? Meter to test thermoelectric potential of unknown metal
I don't expect they will be happy with the price but what about a
handheld xray spectrometer to replace it http://www.niton.com/index2.asp Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
According to Jeff Wisnia :
Doug White wrote: [ ... ] This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID =11&Group_ID=2 [ ... ] Hmm, it appeared busted to you? I wonder if that's got anything to do with something I read in the business section of the Boston Globe within the last couple of days about a couple of the upper eschelon internet "backbone" data carriers who are having some sort of hissy catfight? The article said that could possibly disrupt internet communications between parts of the web in different geographic areas. Hmm ... I hadn't heard of that problem. Looking at the internet health report, the only thing a bit slow at the moment is my (current) ISP talking to itself. :-) http://scoreboard.keynote.com/scoreboard/Main.aspx I checked that tinyurl before I posted it, and it worked. I always do that, because of my long standing anality about hating to be cought in a mistake by anyone other than myself. :-) It worked for me -- enough to scare me at the price for that otherwise desirable gadget. :-) I checked just now and that tinyurl still worked fine from here in Red Sox country, where we're in mourning for the next week. Sorry about that. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
? Meter to test thermoelectric potential of unknown metal
Might be a simple - return to be fixed for a repair charge....
Might have to sweat talk with some options or goodies... Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder Bill Janssen wrote: Doug White wrote: Keywords: In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID= 11&Group_ID=2 Interesting looking gadget, but not cheap. Doug White Thanks, that was the type of information I was looking for. I don't think my friend will be happy with that price however. The existing meter is just a sensitive meter with some test leads. I can't test the meter sensitivity because of the broken pivot (taut-band) The meter is 7 inches wide so finding another movement will be difficult, I think. Thanks for the help Bill K7NOM ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
? Meter to test thermoelectric potential of unknown metal
Martin H. Eastburn wrote:
Might be a simple - return to be fixed for a repair charge.... Might have to sweat talk with some options or goodies... Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH, NRA Life NRA Second Amendment Task Force Charter Founder I would need a Time Machine to go back in time to the era that the company still existed Bill K7NOM Bill Janssen wrote: Doug White wrote: Keywords: In article , Jeff Wisnia wrote: Bill Janssen wrote: My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM Hey, isn't this the kind of function you were talking about, the text says, "Sorts alloy scrap, verifies parts in receiving, inspection for proper alloys." http://tinyurl.com/8bh4m This link seems to be busted. I pasted the full link below, but it will need some splicing: http://www.acromag.com/parts. cfm?Model_ID=1&Product_Function_ID=19&Category_ID= 11&Group_ID=2 Interesting looking gadget, but not cheap. Doug White Thanks, that was the type of information I was looking for. I don't think my friend will be happy with that price however. The existing meter is just a sensitive meter with some test leads. I can't test the meter sensitivity because of the broken pivot (taut-band) The meter is 7 inches wide so finding another movement will be difficult, I think. Thanks for the help Bill K7NOM ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
? Meter to test thermoelectric potential of unknown metal
"Bill Janssen" wrote in message ... My scrap yard friend had/has a meter with two probes that when applied to an unknown metal will, from the needle defection, tell what the metal might be. I assume it measures the thermoelectric effect The meter is seriously damaged and is probably not repairable Their meter is now broken and they asked me to repair or find another. The broken one was manufactured by Chemet Products of San Francisco. That company seems to no longer exist. So, does anyone know of a similar meter. I don't even know how to search on Google for such a device. Mainly I don't know what to call it. Bill K7NOM I would also assume it measures thermoelectric voltage. I have a meter at work that connects directly to a T type thermocouple. If it has the meter movement sensitivity printed anywhere I'll let you know. Your meter face may also have it but sometimes you can't see it unless you look pretty hard... |
? Meter to test thermoelectric potential of unknown metal
On Mon, 10 Oct 2005 14:57:34 GMT, the renowned "Rick"
wrote: I would also assume it measures thermoelectric voltage. I have a meter at work that connects directly to a T type thermocouple. If it has the meter movement sensitivity printed anywhere I'll let you know. Your meter face may also have it but sometimes you can't see it unless you look pretty hard... If it's a straight connection to the movement, it may show both a current and the internal resistance (eg. 50uA/500 ohms), and in the case of a thermocouple meter like yours, it may have a presumed resistance value for the total thermocouple circuit (eg. 10 ohms). Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
? Meter to test thermoelectric potential of unknown metal
"Spehro Pefhany" wrote in message ... On Mon, 10 Oct 2005 14:57:34 GMT, the renowned "Rick" wrote: I would also assume it measures thermoelectric voltage. I have a meter at work that connects directly to a T type thermocouple. If it has the meter movement sensitivity printed anywhere I'll let you know. Your meter face may also have it but sometimes you can't see it unless you look pretty hard... If it's a straight connection to the movement, it may show both a current and the internal resistance (eg. 50uA/500 ohms), and in the case of a thermocouple meter like yours, it may have a presumed resistance value for the total thermocouple circuit (eg. 10 ohms). Best regards, Spehro Pefhany Yeah, I do recall seeing something about 10 ohms on the back of it. Someone was throwing it out and it looked lonely so I took it in.... |
? Meter to test thermoelectric potential of unknown metal
Spehro Pefhany wrote:
On Mon, 10 Oct 2005 14:57:34 GMT, the renowned "Rick" wrote: I would also assume it measures thermoelectric voltage. I have a meter at work that connects directly to a T type thermocouple. If it has the meter movement sensitivity printed anywhere I'll let you know. Your meter face may also have it but sometimes you can't see it unless you look pretty hard... If it's a straight connection to the movement, it may show both a current and the internal resistance (eg. 50uA/500 ohms), and in the case of a thermocouple meter like yours, it may have a presumed resistance value for the total thermocouple circuit (eg. 10 ohms). Best regards, Spehro Pefhany I looked for spec.'s down in a corner etc. nothing found. I could open it up and measure the resistance but that won't give me the sensitivity. Unless I find someone that can rebild the meter I think this thing is going into the scrap bin. Thanks everyone. Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
Bill Janssen wrote:
Ok its taut-band and the taut-band is broken or melted or something. So to repair this meter I would have to replace the taut-band and I think that is beyond my ability and equipment. A replacement meter would probably be less expensive than paying someone to repair this one. Sam Goldwasser tells us how he repaired one.... Maybe you can too. Rwemember, you can only succeed as far as you dare to fail, Bill. :-) I tore into my son's cell phone this afternoon and managed to get its erratic keyboard working fine again by cleaning out what looked like dried up Pepsi in the key contact area. Read this description by Goldwasser, he who repairs everything electronic, and maybe you'll have a go at fixin' it. (Or maybe not....) http://repairfaq.ece.drexel.edu/sam/...va.htm#cvartbs Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) "Truth exists; only falsehood has to be invented." |
? Meter to test thermoelectric potential of unknown metal
Jeff Wisnia wrote:
Bill Janssen wrote: Ok its taut-band and the taut-band is broken or melted or something. So to repair this meter I would have to replace the taut-band and I think that is beyond my ability and equipment. A replacement meter would probably be less expensive than paying someone to repair this one. Sam Goldwasser tells us how he repaired one.... Maybe you can too. Rwemember, you can only succeed as far as you dare to fail, Bill. :-) I tore into my son's cell phone this afternoon and managed to get its erratic keyboard working fine again by cleaning out what looked like dried up Pepsi in the key contact area. Read this description by Goldwasser, he who repairs everything electronic, and maybe you'll have a go at fixin' it. (Or maybe not....) http://repairfaq.ece.drexel.edu/sam/...va.htm#cvartbs Jeff Thanks for that link. I am considering trying to do some thing like Sam's fix. My meter is different so the repair jig will be different. Sam questions the calibration and that is my concern also but with care it should be close. The danger is I might make things worse, and before I do that I would like to make sure there was no "Expert" repair available. Thanks Bill K7NOM |
? Meter to test thermoelectric potential of unknown metal
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