We have been working on a switch mode replacement for the now hard to get LM123, LM323 and other TO-3 5v regulators. Our replacement is capable of higher current and has much tighter tolerances than the original regulators and being switchmode runs a lot cooler.
Specifications.
- Input Voltage: 7 – 34V
- Output Voltage: 5v fixed (4.94 – 5.06)
- Output Current: 4.25A continuous
- Package Case: TO-3
- Protection: Hiccup-Mode overload, Over Temperature, Short Circuit, Over Current, Under Voltage Lockout
- Low Ripple: Measured at less than 40mV at full load
These regulators are available for sale on eBay