All questions asked by 39fredy

List all solved & unsolved questions asked by 39fredy

SQLite and Postgres Partial index support with inherited parameter using SQLAlchemy

1 Stack Overflow Asked on 12/18/2021

postgresql python sql sqlalchemy sqlite

What is this connector called? TDS Meter connector

1 Electrical Engineering Asked on 11/06/2021

circuit analysis pcb design

Interpreting the differential resistance of a Zener diode

2 Electrical Engineering Asked on 11/06/2021

diodes reverse bias reverse breakdown voltage zener

Mysterious energy disappearance of capacitors

8 Electrical Engineering Asked on 11/06/2021

kirchhoffs laws voltage

Best way to create a daylight charging station and for a laptop of 135W consumption with solar energy and lower battery capacity posible

2 Electrical Engineering Asked on 11/06/2021

batteries charging solar charge controller solar energy

what's "wrong" with diesel generator power?

2 Electrical Engineering Asked on 10/29/2021

generator mains

What does inverted triangle in this schematic mean?

3 Electrical Engineering Asked on 10/29/2021

How does this mobile charger work?

2 Electrical Engineering Asked on 10/29/2021

pwm transistors

How do I use the Z-input on my oscilloscope (full range of contrast / brightness)?

1 Electrical Engineering Asked on 10/29/2021

brightness oscilloscope

How to specify UV high brightness LEDs?

1 Electrical Engineering Asked on 10/29/2021

brightness led luminous flux power uv

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