Increase the gain in the OD channel of MA100H/50H

MA Heads and Combos

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mistergiba
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Increase the gain in the OD channel of MA100H/50H

Postby mistergiba » 08 Dec 2012, 03:17

Hello guys, :help
Seeing the preamp section of the head marshall MA100H in the following diagram (downloaded in pdf here:
http://forum.metroamp.com/viewtopic.php?f=25&t=33579) I saw that in the cathode of the valve V2B there is a 6K8 /0,6W resistor called R18.It's possible to change it with one of a lower value,for example 1.5K or 3.3K,in order to increase the gain of this stage and consequently of the OD channel ?
I hope that, also, SteveD as designer of this good head can give me his advice.
Greetings, and Happy Christmas Holidays.
Amps & Cabinets : MARSHALL MA100H + MARSHALL MC412A

Guitars : Fender American Standard 2007 Sunburst Stratocaster with Fender SCN Pickups in neck/middle position and DiMarzio Hotrail in bridge position

Pedal Board : http://imageshack.us/photo/my-images/854/img160j.jpg/

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