TS's problem may be solved with multimeter and simple circuit:

This looks like a interesting circuit.
I didn’t get much of a result with the last circuit I made, so will try this one instead.
Just a few questions on it.
What is the symbol MA the circle with the arrow through it, next to the positive input?
And the inductors go into where is says L1?
Where would be the best place to take the readings from?
These readings are off a 9v supply, what happens if you only use a 5v or a 12v? I don’t think I have a 9v supply!
Thanks for working out something for me.
I look forward to trying it.

 

Just a few questions on it.
What is the symbol MA the circle with the arrow through it, next to the positive input?
And the inductors go into where is says L1?
Where would be the best place to take the readings from?
These readings are off a 9v supply, what happens if you only use a 5v or a 12v? I don’t think I have a 9v supply!

Symbol "mA" means "milliammeter", i.e. multimeter in "mA" mode and here is place to take readings.
So multimeter is connected between R3 and +5V in circuit below.
L1 is tested inductor (33uH or 100uH).
This is circuit, fed from 5V power supply:

Resistors R3 and R4 are for circuit and multimeter safety.
EDIT: Current pulses of collector Q1: