The Lo1UK35 AC power-supply can only be used with 220VAC. It has its original cover missing the schematic tho.
Here the cover is on the power-supply.
On the right the power socket can again be seen. Next to it is the fuse and then the knob for the Heater Voltage. It should always be turned fully to the left when turned on to protect the tubes from a too high heater Voltage. On the right side the Power socket for the Lo1 is located.
The inside of the case has some protective covers.
On the inside the big choke and transformer can be seen. As well as the Selenium rectifier Elektrolyte capacitors and some other parts.
On the top left some spare fuses are located and can be pulled out.
On the bottom left side are the controls for the -3V plate voltage and the 120-130V anode voltage. Above it are the STV280/40 Voltage stabilizer tube and the Eisenwasserstoffwiderstand
A nice view of the big Capacitors. The two on top are replacements the bottom ones are original. On the right side two relays are missing for the remote control and safety.
On the bottom some more parts are missing like smaller capacitors and original cables.
On the right is a nice view of the Selenium rectifier. These tend to go bad after a loot of use or years of storage.
Kriegsmarine Radios and Sonar Equippment 