What are some simple dual polarity power supply circuits using an Lm317 and an Lm337 but using a transformer without a center tap? - Quora
![PDF) DESIGN AND CONSTRUCTION OF A DUAL REGULATED ±0-35VOLTS DC POWER SUPPLY USING LM317 AND LM337 VOLTAGE REGULATOR PDF) DESIGN AND CONSTRUCTION OF A DUAL REGULATED ±0-35VOLTS DC POWER SUPPLY USING LM317 AND LM337 VOLTAGE REGULATOR](https://i1.rgstatic.net/publication/335219735_DESIGN_AND_CONSTRUCTION_OF_A_DUAL_REGULATED_0-35VOLTS_DC_POWER_SUPPLY_USING_LM317_AND_LM337_VOLTAGE_REGULATOR/links/5d57b58645851545af48f583/largepreview.png)
PDF) DESIGN AND CONSTRUCTION OF A DUAL REGULATED ±0-35VOLTS DC POWER SUPPLY USING LM317 AND LM337 VOLTAGE REGULATOR
What is a dual polarity power supply using a transformer, a full-wave bridge and a Zener diode? - Quora
![schematics - Dual power supply by chaining two lm317 voltage regulators in series: will it work? - Electrical Engineering Stack Exchange schematics - Dual power supply by chaining two lm317 voltage regulators in series: will it work? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/48WUw.png)
schematics - Dual power supply by chaining two lm317 voltage regulators in series: will it work? - Electrical Engineering Stack Exchange
![Loading effect question about transformers used in split-supplies - Electrical Engineering Stack Exchange Loading effect question about transformers used in split-supplies - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/cVVZi.png)
Loading effect question about transformers used in split-supplies - Electrical Engineering Stack Exchange
![dual power supply with no center tap transformer ; half wave rectifier, voltage regulator 7812 7912 - YouTube dual power supply with no center tap transformer ; half wave rectifier, voltage regulator 7812 7912 - YouTube](https://i.ytimg.com/vi/opakS9dWICc/maxresdefault.jpg)