Products > Test Equipment
bench multimeter for someone learning
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rhb:
Clearly you don't think much of a Tek 11801 with a 20 GHz  SD-24 TDR head and 40 GHz  SD-32.  So last millenium.
nctnico:

--- Quote from: rhb on March 25, 2023, 12:55:09 am ---Clearly you don't think much of a Tek 11801 with a 20 GHz  SD-24 TDR head and 40 GHz  SD-32.  So last millenium.

--- End quote ---
Old junk is old junk. Only useful if you really have nothing else available. About 5 or 6 years ago I bought some HP6024A DC power supplies thinking I bought some nice quality HP gear. I quickly got a wakeup call telling me I was getting old myself. I had bought some really old stuff! I had to change all the electrolytics, do some repair, re-attach mains wiring to the board (I could pull the wires out from the solder joints) and fitted temperature control to the fans so they would not be so loud. About 2 years ago I replaced the old HP supplies with 6 brand new PSUs from Rek and Gophert that have the same power rating. The new PSUs need 10 times less volume (so more easier to place somewhere on the bench), no fan and surprisingly accurate digital readouts (including power) for the price of around 50 euro each. Nevertheless people pay $100 for HP 6024A power supplies without any warranty on Ebay  :palm:
MrYakimovYA:

--- Quote from: nctnico on March 24, 2023, 08:57:22 pm ---Don't make the mistake that bench meters are all about precission. For regular use, you just need handheld features with a mains cord. I would not want to use my 34461A as a daily driver DMM. Hell no; it kills productivity.

--- End quote ---
Excuse me, what's wrong with 34461a? I have it at my work office. I think it's very good model. I also fall in love with Agilent/HP 34401a. It's VFD looks very seriously. I also have an everyday horsework GW Instek GDM-8145 4.5 digit multimeter. It's fully manual but it has widely known ICL7135 inside, and this DMM is just beautiful.
nukie:
HP 3468A, 3478A - No diode test function, they also need a backup battery in it to secure calibration data. Okay maybe diode test function isn't important for everyone but I use it to find shorts in mobile phones and laptop mobo. The electrolytic caps probably need a refresh as well mines leaking when I got it

Fluke 8840A is old and the ROM chips are about time to go. So replace them and you are good to go. VFD maybe a bit dim. Again no diode test function. This device is a magical instrument that is factory calibration accurate after decades. I tested with vishay metal 0.01% resistors reading with the 4 wire test it passed with flying vacuum fluro display colours.

Both are very good meters I used them for a few years before upgrading to 34401a.
coromonadalix:
geez  why going that far with all the big names  34461a 34401a  3478  etc ....

for a beginner / learner,   any basic bench one will do,  you have to start somewhere no ?

Dont start someone with vfd based ones, or ones with unobtanium parts etc ...

just pick an standard bench dmm, you even have some dmm chart lists in the instrument section here ...

yeah   it will be always discuttable and once again a never ending thread

and old stuff got prices hikes  etc ....   :palm:
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