This ELF LFO is fully functional and in good condition.
The Model 37 ELF LFO has an identity problem. While specifically designed as an LFO, it's massive frequency range 1 cycle per 30 seconds to over 20Hkz makes it the perfect candidate for utility audio VCO applications. Incorporating a heavily-modified version of the TAU triangle core architecture, the M37 is capable of 1v/oct tracking across it's entire operating range when the external VC Attenuator is set to the full clockwise position.
4 HP36 mm Depth20 mA +12V20 mA -12V
Model:Model 37 ELF LFO