Capacitor values for Firebird

Discussion in 'Other Gibsons' started by macg1, May 9, 2010.

  1. macg1

    macg1 Senior Member

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    I got a FB VII and looking to upgrade from the ceramic caps to some orange drops but cannot read the values on the capacitors themselves. Are they .022 or .047? If I want more beef out of my tone, and I have .022 now, would I go .047?
     
    HOT-BRIT likes this.
  2. Dan

    Dan Senior Member

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    My late-90's Firebird has .022 caps.
     
  3. macg1

    macg1 Senior Member

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    Thanks Dan that is what I figured they were. Wonder what .047's would do.
     
  4. Dan

    Dan Senior Member

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    Talk to Jonesy, he could tell you.
     
  5. R9PlexiLuv

    R9PlexiLuv Junior Member

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    I did this to mine at one time. I wanted to get a heavier sound out of the minibuckers so i tried a 0.1uf which did allow more of the low end get through the capacitor but with a downside. The "bigger" capacitor reduced the usable range of the tone control potentiometer to where all the available adjustment was right at the first 1/4 turn of the potentiometer and then it was all the same. Minibuckers are not going to get beefy like a regular size bucker so don't expect it. There is a little bit more with the "right" capacitor value.

    I ended up going to a 0.27uf "Paper-in-Oil" (PIO) which allowed the small available amounts of lows that the mini's can produce but also have the adjustability in the tone control over a larger range of potentiometer adjustment.

    Hope this helps.
     
  6. R9PlexiLuv

    R9PlexiLuv Junior Member

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    Sorry...not a 0.27uf.

    I meant a 0.027uf. It makes a difference.
     
  7. HOT-BRIT

    HOT-BRIT V.I.P. Member

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    you need .022 caps, the .047 will make it sound darker
     
  8. cherrick

    cherrick Senior Member

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    I have a late 89 Firebird V in which I installed original '64 Firebird pickups. I took the opportunity to commission Dr Vintage to build me a wiring harness. He nailed it, including moving both volume pots to the top (canonical early Firebird style). A set of vintage gold knobs topped off the mods.

    If you're going to pull the wiring, check in with Dr Vintage and he can give you values that worked out well.
     
  9. R9PlexiLuv

    R9PlexiLuv Junior Member

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    Not all .022uf capacitors are the same. These differences within the same value capacitors can result in different "tone" from the capacitor. PIO's will sound richer and smoother than a "Orange Drop" poly/foil cap. Wima's will sound different than Orange Drops which sound different than ERO's or ceramics. This is why there is so much money to be made on EBAY from us "CapSniffers". I have spent much time and money aquiring so many different types and values from very early to modern caps.

    My 1976 Bicentennail Fire bird had .022uf 1813 series ERO's from West Germany as original caps. They sounded great. Very transparent and nuetral coloration. They let the natural sound of the MINI's come through. I changed to the .027 PIO's to let the remaining lows come through and to soften the shrill, metallic highs the MINI's produced. It works for me.

    Your ears are not my ears. You may like something else better.
     
  10. Litcrit

    Litcrit Senior Member

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    What type of pups did those 7o's reissue birds come with? Closer to the originals (reading in the 6-7 Kohm range) or the ceramic pups (which read much higher)?
     

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