Electronics training kits to practice

Do you guys know about any Electronics training kits that
can help me out with practicing measurements

1.) DC offset voltages
2.) Ripple voltages
3.) Hum frequency and voltages
4.) Oscillation frequency and voltages
5.) Frequency Response Checking and testing
6.) Input and output impedances
7.) Time measurements
a.) Pulse width,Duty cycle,PWM,Rise time and fall time,phase,
frequency,period

8.) Measuring DB gain

I really need to practice these meausurement skills really bad how
do you guys think there is a way to know how do pratice doing these
measurements skills?

How would you practice this stuff?

Is there a training kit i can buy that helps me out with this stuff?

The problems aren't with knowing how to make the measurements, but with understanding what they actually are!. Once you understand that it's simple to work out how to measure them.

You need to have a basic electronics knowledge, it's no good jumping in with a scope without knowing what you are doing - so I would suggest you try to get on a course for a couple of years?.

You can't expect to get years of instruction in a few lines on a forum!.

The actual formulas you need to know are VERY! few, ohms law is the main one, and power calculation the next most important one. Other useful ones would be capacitive reactance, inductive reactance, and resonance.

1.) DC offset voltages
2.) Ripple voltages
3.) Hum frequency and voltages
4.) Oscillation frequency and voltages
5.) Frequency Response Checking and testing
6.) Input and output impedances
7.) Time measurements
a.) Pulse width,Duty cycle,PWM,Rise time and fall time,phase,
frequency,period

8.) Measuring DB gain

What do these Waveforms look like ?
I never seen these types of waveforms on a oscilloscope?
thats my problem

Oscilloscope pictures ?

Have you looked at things like https://www.electro-tech-online.com/threads/i-want-to-build-a-mic-amplifier.240/

There are lots of oscilloscope articles out there to give you clues as to what you would see on screen.

mechie do you have more oscilloscope sites that some more waveforms
like in the list i have i can't find the pictures and measurements on counting the gradules and doing formulas for this stuff did you make one
up for this stuff on the list? or know where i can get this stuff?