GM328 Tester case
thingiverse
This requires a GM328 component tester, which can be purchased at the following link: https://www.aliexpress.com/item/Multifunctional-Tester-GM328-Transistor-Tester-Diode-Capacitance-ESR-Voltage-Frequency-Meter-PWM-Square-Wave-Signal-Generator/32770686654.html. The case comes in two versions, one with a 9V battery location and the other without any battery location.
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