Serial Number: 73-43
Body Wood Core: Mahogany
Top/Back Wood: Schedua
Neck Wood: 5-Ply Walnut/Maple
Frets: 24 Nickel Silver
Fingerboard: Gabon Ebony, Double Octave, Scalloped Fretboard End
Nut: Hand Cut Scalloped Brass
Tuners: Nickel Silver Schaller
Scale Length: 34” (Long Scale)
Nut Width: 1.75"
Neck Dimensions: 0.80" at 1st fret, .85" at 12th fret
Inlays: Mother of Pearl Oval Inlays, Sterling Silver Side-Dots
Bridge: Hand Cut Brass Bridge
Tailpiece: Hand Cut ‘Mustache” Brass
Pickups: Dual ‘Brown’ Wide Frequency Response, Ceramic Magnet, Low Impedance Alembic
Rotary Switch: Off, Treble Pickup, Both Pickups, Bass Pickup
Controls: Master Volume; Volume (each pickup); Variable Active 12db-Octave Low-Pass Filter (each pickup); 3-Position ‘Q’ (resonance) of the Filter (Straight Roll-Off, Slight Peak Before Roll-Off and Large Peak Before Roll-Off) (each pickup); & Hum Balance Trim-Pots (each pickup).
Preamp: FET & OpAmp Circuit, 18-volt
Output Jacks: Stereo/Mono 1/4”, 5-pin XLR Phantom Power
Power Supply: Alembic ‘Silver’ DS-2 (w/ Stereo/Mono switch), 18-volt & 5-pin Power Cable
Battery Power: Brass Covered Compartment w/ Dual 9-volt for +/- 18-Volt Operation
Case: Silver Flight Case
Weight: 10 Lbs. 0 oz.
Early example Alembic Bass (model name LB-1), original short-horn body shape, unusual appointments are the hand-cut ‘mustache’ tailpiece, fretboard end scallop, hum-balance trim-pots on the face, lack of center hum-cancelling coil, & ‘chocolate brown’ pickups. Electronics done by Ron Wickersham
Handmade at the 60 Brady Street, San Francisco shop in 1973
Here are two of John McVie's early LB-1 basses (73-27 on the top and 73-33 on the bottom). The bass in this listing is only a few serial numbers away from the famous bass sound heard on the Fleetwood Mac 'Rumours' album!