Amplifiers
Eddie's main amplifier in the early years was a 100 watt Marshall amplifier that had a 12301 serial number, which dates it to the 1967-1968 transitional period at Marshall when the circuit of the 100 watt Marshall 1959 changed gradually from the "Bass" circuit to the "SuperLead" circuit. Eddie's main Marshall's original circuit had an 820 ohm/0.68 uf resistor/capacitor pair on the cathode of Valve(Tube) 1 and the same on the cathode of Valve(Tube) 2. Eddie's main Marshall had a white knob installed at the back of his Marshall head, as seen in the 1978 world tour Japanese leg photos and the Van Halen II studio photos from late 1978. Photos of Eddie's main Marshall in the 1990s show that the white knob had been removed.
For Van Halen I, a single Celestion speaker cabinet was used and a variac set to around 90 volts was also used on Eddie's main 100 watt Marshall head, mainly to lower the amplifier's volume. The volume control and all other controls on his Marshall head were set to maximum or 10. Eddie's Van Halen I recorded guitar tracks were re-amped by using the Sunset Sound studios live reverb room. The first Montrose album was recorded in this way by Ted Templeman and Donn Landee who also produced and engineered the Van Halen I album. Van Halen I was recorded in Studio 1 at Sunset Sound and Van Halen II was recorded in Studio 2 at Sunset Sound.
From the mid 1980s, Eddie has used a real time re-amping or Master/Slave slaving amplifier setup that was originally designed by Bob Bradshaw and was published in the September 1986 issue of Guitar World Magazine, with the first amplifier being a Tube Amplifier and the second amplifier being a H&H MOSFET solid state power amplifier. Between 1993 and 2004 Eddie was sponsored by Peavey Electronics to use their 5150 Amplifiers, which he had a part in designing. Following the ending of this relationship, Peavey renamed the amplifier as the "Peavey 6505", with slightly updated styling but original circuitry. Eddie is now sponsored by Fender and has debuted his new amp called the 5150 III. The 5150 III features three channels with their own independent controls, a four-button foot-switch and his famous striped design on the head. In 2011 there will be an inexpensive 5150 III, 60 watt, 2 speaker, combo amp and 50 watt miniature head in production.
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