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previous: Howard Has anyone tried to mod a Vox AC30 ... -- 9/2/2003 4:18 PM

Re: EF86 Vox AC-30 Mod

9/5/2003 12:33 PM
Masco	Re: EF86 Vox AC-30 Mod In an AC-30, the Normal channel shares a 12ax7 pre with the Top Boost channel. Since there are two pres in an AC-30(Normal/TB and Vib/trem) one preamp socket would have to be sacrificed or one must be added to accomodate an EF-86. This means trading your TopBoost and Normal channels for the EF-86 or trading your Vib/Trem channel for the EF-86 or using the Normal input hole for an added-on EF-86 somewhere. The later will give you an unused triode, but you could parallel it with the TB triode pre like Matchless did in the HC-30 if you don't want to waste it. I think someone in England is actually making an EF-86 add-on module for a fourth channel.

9/5/2003 12:33 PM

Masco

Re: EF86 Vox AC-30 Mod

In an AC-30, the Normal channel shares a 12ax7 pre with the Top Boost channel. Since there are two pres in an AC-30(Normal/TB and Vib/trem) one preamp socket would have to be sacrificed or one must be added to accomodate an EF-86. This means trading your TopBoost and Normal channels for the EF-86 or trading your Vib/Trem channel for the EF-86 or using the Normal input hole for an added-on EF-86 somewhere. The later will give you an unused triode, but you could parallel it with the TB triode pre like Matchless did in the HC-30 if you don't want to waste it.

I think someone in England is actually making an EF-86 add-on module for a fourth channel.

Replies:

Dutch [QUOTE]The later will give you an u... -- 9/5/2003 5:23 PM