Preamp Tubes

Haze 40watt and 15 watt

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HAZE MHZ 15 HEAD- 15W, guitar head-unit, five-tube chassis, preamp: 3 X ECC83, power: 2 X 6V6, solid-state rectifier, two channels, reverb, echo, vibe, chorus, front gold control panel, single input, nine knobs (effects adjust, effects depth, r, b, m, t, OD v, OD g, Clean v), power switch, effects switch, channel switch, bright switch, rear panel: emulated line out, two speaker jacks (16 ohm, 8 ohm), effects loop with on/off switch, footswitch jack, two-button footswitch included, black covering, gray grille with white piping and white script Marshall logo, 20.5 lbs., mfg. 2009-2012.

HAZE MHZ 40C COMBO - 40W, 1-12 in. Celestion G12T-66 speaker, guitar combo, five-tube chassis, preamp: 3 X ECC83, power: 2 X EL34, solid-state rectifier, two channels, reverb, echo, vibe, chorus, front gold control panel, single input, 10 knobs (Normal Ch. v, OD Ch. v, OD Ch. g, t, m, b, p, r, effect depth, effects adjust), bright switch, boost switch (Normal Ch.), channel switch, boost switch (OD Ch.), effects switch, standby switch, power switch, rear panel: emulated line out, two speaker jacks (16 ohm, 8 ohm), effects loop with on/off switch, footswitch jack, two-button footswitch included, black covering, gray grille with white piping and white script Marshall logo, 44.7 lbs., mfg. 2009-2012.

HAZE MHZ112 SPEAKER CABINET - 1-12 in. Celestion G12-66 Marquee speaker, closed back, straight or angled front, designed for use with the Haze MHZ 15 Head, black covering, dark gray grille cloth with white piping and white script Marshall logo, mfg. 2009-2012.

patvh1
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Preamp Tubes

Postby patvh1 » 21 Aug 2016, 11:43

Can anyone tell me the Preamp tube configuration on the Haze 15 head? Is V1 the tube with the metal cap over it? Also, I want to replace the tubes so I have a gold lion, and two tung sol 12Ax7's. What do V1, V2 and V3 do exactly?

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Re: Preamp Tubes

Postby burnsy » 22 Aug 2016, 03:55

I've not seen the Haze 15 but every other Marshall amp I've seen has the metal cover on V1.
As the first preamp tube in the circuit, the metal cover is to protect from interference.
You want a good low-noise tube in here. The Tungsols would probably do a good job.
Victory 'Red Dwarf' RD1
Victory 1x12 Creamback
Fender Blues Junior
Ampmaker 18w Combo

Previous Amps:
WEM Clubman, Vox AC30, Sound City 50, JTM45, JMP50, 9004, DSL50, 9001, EL84 20/20, DSL401, Class 5, 2266, Tiny Terror

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