kf4rca
09-14-2022, 11:03 AM
Have you seen this???
Price is right too!!!
https://www.ebay.com/itm/262474886090?hash=item3d1cb8ebca:g:1pAAAOSw8vZXNJC K&amdata=enc%3AAQAHAAAAoAmaeQqzVHa%2FvfskkX3fQubJxm5 UtZY%2BsoZZrw85mvFaWFPr75ntGrr%2FnO1YeKeXZSStnvv9p 5bMXwXSp%2BiyJGvF%2B8uUvLNgF0BhmEkSFEb7oDVRo8%2BJn 6zfs1fVIJ0qfDA0AzyB5r0VFcpgVxfJh1RlmWm8DQY5AAhQ%2F wqi1cUFzjUSEdcGdeXaZT6Muhh1KDDp4NJrikRU3uemyFxv%2F bo%3D%7Ctkp%3ABk9SR4i018vnYA
old_tv_nut
09-14-2022, 01:09 PM
Neat!
Now, if they had one that identified vacuum tubes... :D
Electronic M
09-14-2022, 01:13 PM
You're just seeing these NOW?
I've had one since at least 2018 (I've broken 2-3 from accidental falls). Shango and numerous VKers have been using these for years.
They're good for working on SS gear. I use mine mostly for ESR tests, checking pF caps below what my Heathkit C3 can accurately measure, inductors, and for checking PN junction based parts with 3 terminals or less and identifying parts I don't feel like searching datasheets for.
Not sure what's sexy about a PCB with a LCD and a single button... Unless there's some hidden Easter egg to get naked ladies to dance on that LCD screen. :D
I know there's a calibration mode easter egg that appears if you short all 3 terminals and push the button...
jr_tech
09-14-2022, 02:56 PM
I’m on number 3 since 2016... they can be destroyed by voltage across the terminals. Be sure the capacitor to be tested is completely discharged before testing.
Very useful device.:thmbsp:
jr
These are fun, cheap and really handy. Problem is most of them will require you to find an enclosure.
kf4rca
09-15-2022, 11:43 AM
Thanks for the info. That's the first time I had ever seen one of those.
I'm still old school here.
One of those vendors on Ebay has a clear plastic case for them.
N2IXK
09-15-2022, 12:03 PM
I've had one of those for a while. Very handy, especially for identifying unknown parts. Wish it had a higher test voltage available for testing zener diodes, though...
jr_tech
09-15-2022, 12:38 PM
One of those vendors on Ebay has a clear plastic case for them.
I got mine as a kit (case assembly required) from Amazon.
https://www.amazon.com/Organizer-Multifunction-Transistor-Capacitor-Inductance/dp/B07T6FKHM6/ref=sr_1_3?crid=1TIPKRY825I83&keywords=esr+meter+kit&qid=1663262304&sprefix=%2Caps%2C394&sr=8-3
not affiliated,
jr
old_tv_nut
09-15-2022, 02:49 PM
I’m on number 3 since 2016... they can be destroyed by voltage across the terminals. Be sure the capacitor to be tested is completely discharged before testing.
Very useful device.:thmbsp:
jr
Thanks - just ordered the one with DIY case mentioned in the thread.
Tube TV
10-08-2022, 01:55 PM
Been meaning to pick one of these up.
vertsyeux
02-17-2023, 11:53 AM
Bit late to the fray here. These cheap Chinese Arduino based testers; great for what they are - ie. cheap - but accuracy testing passives is not great (one of my 2 tested worse than 20% on R, C and L testing). Might be possible to calibrate, but who knows how? The Peak Atlas testers are nowhere near as cheap but quite accurate and doesn't misidentify 3-lead semis like the Chinese one does. For something cheap ($20) and more useful than you might expect, get a Uni-T UT116C SMD/tweezers meter. Fairly accurate, tests zener diode breakdown voltages, flash LEDs in circuit, single-handed in-circuit voltage measurement.. and great for verifying through-hole and SMD resistor values..