the transformer outputs are rated:
main output: 260-230-0-230-260V
heater output: 2.5-0-2.5
I seemed to recall that this is needs to be connected to power supply ground or maybe mains ground? maybe not connected at all?
thank you
main output: 260-230-0-230-260V
heater output: 2.5-0-2.5
I seemed to recall that this is needs to be connected to power supply ground or maybe mains ground? maybe not connected at all?
thank you
That trafo is set up for use with a directly heated rectifier, like a 5Y3 or 5R4. Connect the plates to either set of HT taps and ground the HT winding's CT. You take the "raw" B+ from the CT of filament winding.
If you use a rectifier with a cathode sleeve, like a 5V4 or 5AR4, tie the filament winding's CT off and take the "raw" B+ from pin 8 of the tube socket.
If you use a rectifier with a cathode sleeve, like a 5V4 or 5AR4, tie the filament winding's CT off and take the "raw" B+ from pin 8 of the tube socket.
just want to clarify:
I am using a 5u4g. I am using an LCLC circuit. One of the leads of the 1st choke is connected to the CT of the main output. The CT of the heater winding is grounded (connected to supply ground).
Is this correct?
thanks again 🙂
You have the CT's reversed. The CT of the rectifier winding gets grounded. You connect the CT of the filament winding to the PSU filter.
Only if you want a negative supply relative to ground, (observe cap polarity in such a case) otherwise do what Eli says! 😀
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