With only a single Magnetic Field Design (MFD) bass humbucker, what would one expect for switching options? Still, with such a deceptively simple layout, Leo Fender was able to add a remarkable amount of sonic complexity. Shown below are a 1980 L-1000 and a 1983 L-1000F. A CTS 250kΩ Audio Taper potentiometer for the volume control is standard on these basses. The PTB circuit consists of a CTS 250kΩ Audio Taper pot for the treble cut with a 50,000pF (.050µF) or 47,000pF (.047µF) capacitor from the wiper to ground (both values are equivalent within the ±10% tolerances) and a 1MΩ Reverse Audio Taper pot for the bass cut with a 2,200pF (.0022µF) treble bleed cap across the pot and a 1,000pF (.001µF) cap from the wiper lug straight to ground. The red tip coil selector is implemented with a ALCO MTA206PA On-On-On mini-toggle and hence offered 3 sonic options. Following the “L-1000” section of the “BASS INSTRUCTION SHEET FOR SWITCHES” shown below, “Towards the Nut Position - Is “Humbucking” mode” and the measured DC-R value for the MFD pickup on each bass is about 2kΩ in this setting. The “Middle Position - Is ”Single Coil” mode for normal playing” and the DC-R values measures to be about 4kΩ. Finally, “Towards the Bridge Position - Is “Single Coil” mode plus added bass boost” and corresponds with DC-R values of about 8kΩ. This bass boost is achieved by adding a 100,000pF (.1µF) capacitor, visible on the MTA206PA switch, grounding high frequencies, and is colloquially known as the “OMG” (“Oh My God”) setting. From the quoted DC-R values, assuming each coil of the bucker has a DC-R value of 4kΩ, the last setting corresponds with both coils being engaged in series, so not truly single-coil. This is confirmed in the block diagram drawn up by G&L’s Paul Gagon, accessible here on the Basses by Leo website and shown below for convenience, where the “OMG” setting is labeled as “3 = SERIES HUMBUCKING W/.01UF CAPACITOR”. However, the 6.8kΩ resistor in the diagram cannot be found on either ‘Wunkay’ and is included in error. At some point, the Splitter switch was changed into a 2-position series/parallel switch as indicated by the pictured explanation for the “L-1000 BASS PICKUPS [sic] AND CONTROLS” from a much later date. When the L-1000 was reintroduced in the summer of 2018 as part of the CLF Research series of instruments, all 3 original sonic options became available again using a 3-position switch.