Hi!
I have a very old Kavo Brand German made micro motor (probably made around 1970s-80s).
It it a very well built tool but the power supply is suffering from some problem.
When the brushed motor hand piece is connected and powered on, it will spin but in constant pulses (maybe 1 second on, 1 second off and so on).
When the hand piece is connected to a battery, it spins just fine, so I guess it is something wrong with the old power supply unit.
Could this be something as simple as an old capacitor, or something more complex?
I am not sure what type of power supply this is, but I will provide some pictures if anyone has any idea what could be causing this to happen.
Notice the array of contacts which is used to control the speed of the motor (very old).
Thank you!
I have a very old Kavo Brand German made micro motor (probably made around 1970s-80s).
It it a very well built tool but the power supply is suffering from some problem.
When the brushed motor hand piece is connected and powered on, it will spin but in constant pulses (maybe 1 second on, 1 second off and so on).
When the hand piece is connected to a battery, it spins just fine, so I guess it is something wrong with the old power supply unit.
Could this be something as simple as an old capacitor, or something more complex?
I am not sure what type of power supply this is, but I will provide some pictures if anyone has any idea what could be causing this to happen.
Notice the array of contacts which is used to control the speed of the motor (very old).
Thank you!
Attachments
-
85.9 KB Views: 14
-
132.5 KB Views: 14
-
49.7 KB Views: 13
-
62.9 KB Views: 13
-
55.2 KB Views: 13
-
62.2 KB Views: 13
-
68.9 KB Views: 12