It does not answer the question. If one end is - 0.8 volts with respect to ground and the other is -11 volts with respect to ground then there must be 10.2 volts BETWEEN those two points. Are you sure that you are not getting the two solenoids mixed up ? Check that you get a resistance reading of almost zero ohms between TS433 collector and one end of solenoid winding and you get almost zero resistance between the other of the solenoid winding and the emitter of TS434.
Les.
Les.