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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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I am curious as to the favorite little testers that techs use today.
I know that the Dick Smith ESR meter (Bob Parker design) is very popular and the Peak component testers are handy also. Are there any other small, well designed testers that service techs use and like? TIA John Bachman The Electronic Repair Center at www.anatekcorp.com Professional electronic service discussion at www.anatekcorp.com/elrepair/elrepair.htm |
#2
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I like to use the ESR meter, and a portable scope. The portable scope can
also measure voltages. The Tektronix TDS-220 is a very good one to have for general repairs. -- Jerry G. ===== "John Bachman" wrote in message ... I am curious as to the favorite little testers that techs use today. I know that the Dick Smith ESR meter (Bob Parker design) is very popular and the Peak component testers are handy also. Are there any other small, well designed testers that service techs use and like? TIA John Bachman The Electronic Repair Center at www.anatekcorp.com Professional electronic service discussion at www.anatekcorp.com/elrepair/elrepair.htm |
#3
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Actually "Home Brew" IR Snooper, Basically an op amp with a visible led
connected to the output and a IR Photo Pickup connected to the inputs. Basically used to check IR remotes for any activity. Easy Yes/No check for a questionable remote or, of course, dead batteries. "John Bachman" wrote in message ... I am curious as to the favorite little testers that techs use today. I know that the Dick Smith ESR meter (Bob Parker design) is very popular and the Peak component testers are handy also. Are there any other small, well designed testers that service techs use and like? TIA John Bachman The Electronic Repair Center at www.anatekcorp.com Professional electronic service discussion at www.anatekcorp.com/elrepair/elrepair.htm |
#4
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huntron tracker
small enough |
#5
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I still use my trusty Fluke 77 digital multimeter every day. I'd be naked
without it. On the bench, my homemade X/Y component tester (a voltage vs. current tester hooked up to my oscilloscope, and sometimes known as "the octopus") REALLY speeds up troubleshooting time. Very inexpensive but lets you find shorted and leaky components in a heartbeat. |
#6
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"Matt J. McCullar" writes:
I still use my trusty Fluke 77 digital multimeter every day. I'd be naked without it. On the bench, my homemade X/Y component tester (a voltage vs. current tester hooked up to my oscilloscope, and sometimes known as "the octopus") REALLY speeds up troubleshooting time. Very inexpensive but lets you find shorted and leaky components in a heartbeat. My 35+ year old Lafayette analog multimeter. Yes, it has some scars, no duct tape though. ![]() --- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/ Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/ +Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm | Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html Note: These links are hopefully temporary until we can sort out the excessive traffic on Repairfaq.org. Important: Anything sent to the email address in the message header above is ignored unless my full name is included in the subject line. Or, you can contact me via the Feedback Form in the FAQs. |
#7
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On Sat, 29 Jan 2005 07:49:12 -0500, John Bachman
wrote: I am curious as to the favorite little testers that techs use today. I know that the Dick Smith ESR meter (Bob Parker design) is very popular and the Peak component testers are handy also. Are there any other small, well designed testers that service techs use and like? TIA John Bachman The Electronic Repair Center at www.anatekcorp.com Professional electronic service discussion at www.anatekcorp.com/elrepair/elrepair.htm For what I do (mostly reverse enginneering), I have one of those continuity testers that are a couple AA batterie, a light bulb (changed to LED), a probeand a wire with an alligator clip. |
#8
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"Gary J. Tait" wrote in message
... On Sat, 29 Jan 2005 07:49:12 -0500, John Bachman wrote: I am curious as to the favorite little testers that techs use today. I know that the Dick Smith ESR meter (Bob Parker design) is very popular and the Peak component testers are handy also. Are there any other small, well designed testers that service techs use and like? TIA John Bachman The Electronic Repair Center at www.anatekcorp.com Professional electronic service discussion at www.anatekcorp.com/elrepair/elrepair.htm For what I do (mostly reverse enginneering), I have one of those continuity testers that are a couple AA batterie, a light bulb (changed to LED), a probeand a wire with an alligator clip. I don't know what its called , pseudo-stethoscope ? A crystal earpiece with the plug cut off and replaced by croc-clip for ground connection and a probe for the other wire and splitting the wires apart. electronic hints and repair briefs , schematics/manuals list on http://homepages.tcp.co.uk/~diverse |
#9
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I use a transistor tester that is first class. Does an amazing number of
tests. It is only about $60 in kit form and runs rings around my Peak unit that I bought for almost $200 from UK. Check it out at http://www.al7fs.us/AL7FS6M3Analyzer.html Note: I have no interest in M-cubed Electronix. Just a satisfied customer. |
#10
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You do NOT NEED to accurately read an analog meter to perform basic
troubleshooting. When checking diodes, transistors and general voltages all you are looking for is approximate meter swing. No need to actually read a digitally presented number and figure out if it is in an acceptable range. Of course the digital is best for accurate settings and voltage measurements but for most troubleshooting an old analog is quick and fast. electricitym |
#11
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![]() "N Cook" wrote in message ... For what I do (mostly reverse enginneering), I have one of those continuity testers that are a couple AA batterie, a light bulb (changed to LED), a probeand a wire with an alligator clip. I don't know what its called , pseudo-stethoscope ? A crystal earpiece with the plug cut off and replaced by croc-clip for ground connection and a probe for the other wire and splitting the wires apart. My buddy liked a gadget he built from an article. Two transistor circuit in a small probe (pocket flashlight case) with a Xtal earpiece you could use as a signal tracer. When you pulled out the earpiece it became a signal injector. N |
#12
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![]() "NSM" ) writes: "N Cook" wrote in message ... For what I do (mostly reverse enginneering), I have one of those continuity testers that are a couple AA batterie, a light bulb (changed to LED), a probeand a wire with an alligator clip. I don't know what its called , pseudo-stethoscope ? A crystal earpiece with the plug cut off and replaced by croc-clip for ground connection and a probe for the other wire and splitting the wires apart. My buddy liked a gadget he built from an article. Two transistor circuit in a small probe (pocket flashlight case) with a Xtal earpiece you could use as a signal tracer. When you pulled out the earpiece it became a signal injector. "Elementary Electronics" for Jan-Feb 1971, page 60. "Sig-Prob" by Rudolph Graf and George Whalen. Of course, I've seen the circuit reprinted elsewhere, and for all I know the concept originated earlier, but that's the first time I saw it, and it was the third electronic magazine I bought, and the first issue of that magazine. Michael |
#13
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#16
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"Bob Parker" bravely wrote to "All" (03 Feb 05 01:31:49)
--- on the heady topic of " What is your favorite small tester?" BP From: Bob Parker BP Xref: aeinews sci.electronics.repair:9164 BP wrote: You do NOT NEED to accurately read an analog meter to perform basic troubleshooting. When checking diodes, transistors and general voltages all you are looking for is approximate meter swing. No need to actually read a digitally presented number and figure out if it is in an acceptable range. Of course the digital is best for accurate settings and voltage measurements but for most troubleshooting an old analog is quick and fast. electricitym BP I entirely agree. I still go for my Jemco 20K ohm/volt analog meter BP I bought in 1973, over my Fluke DMM unless I'm doing some critical BP adjusting. ![]() One can't really trust a dmm because all the specs say +/- 1 digit! OTOH an analog meter always shows measurements with no uncertainty. It may be wrong but it won't be different every time one takes a new reading. A*s*i*m*o*v .... That was a fascinating period of time for electronics |
#17
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Asimov wrote:
"Bob Parker" bravely wrote to "All" (03 Feb 05 01:31:49) --- on the heady topic of " What is your favorite small tester?" BP From: Bob Parker BP Xref: aeinews sci.electronics.repair:9164 BP wrote: You do NOT NEED to accurately read an analog meter to perform basic troubleshooting. When checking diodes, transistors and general voltages all you are looking for is approximate meter swing. No need to actually read a digitally presented number and figure out if it is in an acceptable range. Of course the digital is best for accurate settings and voltage measurements but for most troubleshooting an old analog is quick and fast. electricitym Agreed-- I don't really go for an analog meter personally, tho the concept remains-- the concept of 0 (or 0.7) ohms versus infinite ohms, or 10 volts versus 120, is enough, wether presented digitally or as a swing. One can't really trust a dmm because all the specs say +/- 1 digit! OTOH an analog meter always shows measurements with no uncertainty. It may be wrong but it won't be different every time one takes a new reading. Well, on a typical DMM figure, +/- 1 digit might be one part in 500 or 1000. That's probably well below the variance you can expect from things like dust where you placed the probe, or your own hands holding the tester down and creating a path in parallel with the part. I'd expect an analog meter isn't 1000 percent repeatable either. Isn't the moving needle mechanism a bit sensitive to magnetic fields? It's certainly prone to shakes sending the needle off wildly. For best repeatability, tape over the last digit. ![]() |
#18
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![]() My favorite small tester is Shirley. |
#19
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I have 3 the 3rd is not to small though .
1 - Fluke auto ranging digital meter . 2 - Capacitor Wizard cap tester . 3 - an empty dumpster |
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