What is the HZ and Voltage of the ouptput? Does it have PTs and a shunt for field current? Do you know what current and resistance are expected on the field or pilot? Maybe you can retrofit a basler or something. You need to know what you have before you can try something else.
Hi Rene, you could try Bruce at Avon Aero www.avonaero.com/ I bought a complete tt10 ground start unit from him a few years ago (that I would rather not pull apart ) & I believe he had a heap of others, some complete some not.