I have had this Marconi TF 2002 signal generator for many years , never tested, it was part of a larger testing unit ex mil. This unit does not have a power supply on board , but has the required voltage regulators fitted and will accept -16 to - 32 volts dc + to chassis (ground) from an external unregulated supply.
I brought the unit in from a storage situation, removed the covers, removed the mud wasp nests and gave it a general cleaning. There is some damage to a band switch wafer, should be able to straighten and reset the contact. Also two nylon split couplings on the band switch shaft have broken and the third one is looking very groggy. It might be possible to repair the unit, but I am sure that there will be many leaky capacitors and open circuit inductors in the output filter blocks. The tuning system uses slug tuning, the tuning shaft with pulleys and steel slug driving belts may be seen in one image.
I brought the unit in from a storage situation, removed the covers, removed the mud wasp nests and gave it a general cleaning. There is some damage to a band switch wafer, should be able to straighten and reset the contact. Also two nylon split couplings on the band switch shaft have broken and the third one is looking very groggy. It might be possible to repair the unit, but I am sure that there will be many leaky capacitors and open circuit inductors in the output filter blocks. The tuning system uses slug tuning, the tuning shaft with pulleys and steel slug driving belts may be seen in one image.