Marshall Class 5 Modificado 300 eu.

[Slash73]

Vendo este ampli bastante modificado. Marshall Class 5 300 eu.
Ideal para tocar en casa a 1 w o con auriculares o para bolos pequeños.

Master volumen, válvulas V1 JJ y de potencia tb. la V2 es marshall, interruptor para cambiar el sonido entre superlead y superbass.
Aquí adjunto la info. mas detallada de lo que le hice:

http://psionicaudio.com/images/Marshall ... 5-Mods.jpg

Input - change the input impedance to 1M. This helped the Strat single coils out immensely.
I put in a switch to go from full lows to tight "Plexi lead" lows. You can play around with the cathode caps if you don't want a switch. The 1uf is the "Plexi" value for tighter lows.
I put a very subtle bright cap across the volume and removed the voltage divider after the volume control.
Changed the slope resistor to get a more balanced sound (not as trebly/middy) and changed the bass cap to a 22n to get a more usable range out of the Bass knob.
Changed the cap coming off the plate of V2 pin 1 to have more lows so the earlier switch would be apparent.
Put in the "Marshall emphasis cap" across R12 (this is to taste).
Bumped up the values of the voltage divider after the cap on the plate of V2 pin 6, again to make the earlier bass switch apparent.
Put in a "fizz cap" here (68pf to ground) and made the grid to the EL84 a 220K - slightly warmer.
Put a wire in the speaker jack section to make the "headphone switch" become an output attenuator for both speaker jacks - allows late night practice.

[Slash73]

ups vendido gracias ¡¡¡