Major Brands LM337T Standard Regulator, 1.2 Volt to -37 Volt, 1.5 Amp, 3 Pin, TO-220 Rail, 4.7 mm W x 8.89 mm H x 10.16 mm L (Pack of 10): In Line Regulators: Amazon.com: Industrial & Scientific
LM137R Gate and Garage Door Remote Control – Extra Remote for LM137 System
Linear Technology LM137K Negative Variable Voltage Reg TO3 Style OMA064C | Rich Electronics