
Telemark TT Cheetah Series Power Supply Instruction Manual
15
Figure
4-F
Tube
fully
inserted into Socket, left TT-10/15/20, right TT-8 (~ ¼" or 6mm
gap)
Proper seating of the tube in its socket is essential for good current transfer for the heater
filament (75A for TT-8, 160A for TT-10/15/20 !!!), preventing the socket contact rings from
overheating and eventually burning out.
Make the anode connection with the red high voltage wire by attaching the contact clip to the
anode hub on top of the tube's heat sink.
Figure 4-G Anode Connection clipped to
power tube, left TT-10/15/20, right TT-8
This completes the installation of the power tetrode.
Close the top cover of the HVPS (do not forget to put back the ground connection to the top
cover in the TT-10/15/20).
Input Voltage Selection
Before the HVPS may be installed, it is critical that the input AC line voltage being supplied to
it conforms to the marking on the serial number label on the rear panel (see Figure 4-G). No
neutral connection is required for 208VAC units. The HVPS is not sensitive to phase rotation.
Double check your power line wiring configuration before proceeding with the installation.
HVPS Rear Panel Connectors