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hfe tester circuit

widly varying results when measuring transistor hFE using the circuit  below. As a test, I measured the hFE of 5 transistors yesterday and today.  Today's results are easily 3x of yesterday's. Would using an LCR meter (see  2nd pic) provide a more reliable ...
widly varying results when measuring transistor hFE using the circuit below. As a test, I measured the hFE of 5 transistors yesterday and today. Today's results are easily 3x of yesterday's. Would using an LCR meter (see 2nd pic) provide a more reliable ...

widly varying results when measuring transistor hFE using the circuit  below. As a test, I measured the hFE of 5 transistors yesterday and today.  Today's results are easily 3x of yesterday's. Would
widly varying results when measuring transistor hFE using the circuit below. As a test, I measured the hFE of 5 transistors yesterday and today. Today's results are easily 3x of yesterday's. Would

Transistor Tester
Transistor Tester

Constant Collector Current hFE Tester for Transistors | diyAudio
Constant Collector Current hFE Tester for Transistors | diyAudio

I would like to remove the pin numbers on Pots and Transistors - Schematic  - KiCad.info Forums
I would like to remove the pin numbers on Pots and Transistors - Schematic - KiCad.info Forums

Transistor tester circuit - Eleccircuit.com
Transistor tester circuit - Eleccircuit.com

Transistor tester circuit under Meters Circuits -8031- : Next.gr
Transistor tester circuit under Meters Circuits -8031- : Next.gr

Poor man's Transistor Beta (hFE) Tester - Codrey Electronics
Poor man's Transistor Beta (hFE) Tester - Codrey Electronics

Arduino based hfe meter
Arduino based hfe meter

Transistor Tester to test Hfe and working of NPN and PNP Transistors
Transistor Tester to test Hfe and working of NPN and PNP Transistors

How come transistor beta hFE test is only on cheap DMMs?
How come transistor beta hFE test is only on cheap DMMs?

Guitar FX Layouts: Germanium Transistor Tester
Guitar FX Layouts: Germanium Transistor Tester

Guitar FX Layouts: Germanium Transistor Tester
Guitar FX Layouts: Germanium Transistor Tester

Transistor Current Gain Tester Circuit - hFE Tester
Transistor Current Gain Tester Circuit - hFE Tester

Arduino based hfe meter
Arduino based hfe meter

How-To: Transistor tester - Make:
How-To: Transistor tester - Make:

Hot Transistor while testing HFE
Hot Transistor while testing HFE

Fullform of hFE? What is hFE? How to test it? - YouTube
Fullform of hFE? What is hFE? How to test it? - YouTube

Picking transistors for FF Clones
Picking transistors for FF Clones

Testing Transistor DC Gain (hFE) in My Lab – Biophysics Lab
Testing Transistor DC Gain (hFE) in My Lab – Biophysics Lab

Transistor tester circuit - Eleccircuit.com
Transistor tester circuit - Eleccircuit.com

Basic analog BJT hFE tester | Forum for Electronics
Basic analog BJT hFE tester | Forum for Electronics

Transistors
Transistors

Testing Transistor DC Gain (hFE) in My Lab – Biophysics Lab
Testing Transistor DC Gain (hFE) in My Lab – Biophysics Lab

How come transistor beta hFE test is only on cheap DMMs?
How come transistor beta hFE test is only on cheap DMMs?