Tube Question for Ampeg -

Discussion in 'Amps and Cabs [BG]' started by Diegol, Jul 3, 2013.

  1. Diegol


    Jan 14, 2011

    I blew the tubes on my V4B so I need new ones. I read all about 7027A and how the new ones are not so good. Also about how good the 7581A are for this amp but almost imposible to get and expensive.

    Finally I was deciding on 6L6 winged C until I came across this site:

    They claim to have 7027A as good as the original ones and also they carry 7581A that are as good as the discontinued ones

    Does anybody can give me any input?

  2. JellinWellen


    Oct 18, 2012
    Houston Tx
    You are putting too much thought into this. Old tubes vs newer made tubes are hardly any different. Blind test the same amp with different tubes and you most likely cant tell a difference.
  3. JimmyM

    JimmyM Supporting Member

    Apr 11, 2005
    Apopka, FL
    Endorsing: Ampeg Amps, EMG Pickups
    Wouldn't quite go that far with it, but yes, new tubes have gotten much better and the differences are often quite subtle at best, though not always. I'd at least give them a shot. Beats paying ridiculous money for NOS or rewiring your V4B for 6L6's.
  4. wighat

    wighat Supporting Member

    Apr 27, 2005
    Port Aransas, Texas
    A quality 6L6 will plug and play in a V4B, no mods.
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  6. jastacey

    jastacey Supporting Member

    Feb 8, 2009
    There was a time when the 7027A was in really short supply, for that time period it was suggested that one could use a 6L6GC as a substitution, here is a link that will explain the differences between the 6L6GC and the 7027