Re: XY Monitor / Display
Posted: Mon Aug 27, 2018 9:13 pm
Good idea Harry. One transformer 110V->12V then 2x12->110V with the 110 windings in series...if you get almost zero volts out reverse one (only) of the 110V windings. The input one can be 12V-0V-12V at say 1A. this will also provide the low-voltage supplies, the two output ones can be 12V-0V-12V at 500mA. The total load is quite light. If you go this way you'll still be needing that separate 6.3V transformer for the CRT heater. So that's four transformers in total.
The 5V winding on the 600V/6.3V/5V transformer if you go that way might be useful too - we'll see in time.
The 6.3V winding for the heater will be sitting at a high negative potential so it can't be used for the low-voltage stuff. All you requite is a 12V-0V-12V transformer at a hundred mA or so for the low-voltage stuff - quite small (cheap). A total of two transformers in this case.
Steve A.
The 5V winding on the 600V/6.3V/5V transformer if you go that way might be useful too - we'll see in time.
The 6.3V winding for the heater will be sitting at a high negative potential so it can't be used for the low-voltage stuff. All you requite is a 12V-0V-12V transformer at a hundred mA or so for the low-voltage stuff - quite small (cheap). A total of two transformers in this case.
Steve A.