Buying a Drip Edge Bassman: what do I need to know?

Discussion in 'Amps and Cabs' started by viggersster, Mar 28, 2015.

  1. viggersster

    viggersster Member

    Messages:
    31
    Joined:
    Jul 25, 2011
    Location:
    Southwest Missouri
    I am completely ignorant when it comes to vintage amps, but I am looking at a 1968 Drip Edge Bassman with the AB165 circuit.

    What should I look for before buying and what questions should I ask the seller?

    Thanks!
     
  2. riffmeister

    riffmeister Gold Supporting Member

    Messages:
    16,498
    Joined:
    Jan 4, 2003
    Location:
    near Philly
    Have the filter caps been replaced? (they to wear out) Was the amp converted to a three prong AC cord?

    I would also want to take a look at the transformer codes and look at the innards to see what is and what is not original.
     
  3. sickboy79

    sickboy79 Member

    Messages:
    10,313
    Joined:
    Aug 17, 2006
    Location:
    Chicago
    Agree with Riffmeister. I'm a Bassman guy myself. Definitely make sure it's a true 68 drip edge. If it is, it's the AB165 circuit, which is fantastic. If the bias circuit has been modded to the true BF bias circuit (a la the AA864 circuit), that's a good thing. If it's not and you snag it, make that mod. Well worth it for tone and biasing.

    Any photos?
     
  4. 65DuoSonic

    65DuoSonic Member

    Messages:
    4,986
    Joined:
    Nov 12, 2012
    Location:
    Santa Barbara County, CA.
  5. viggersster

    viggersster Member

    Messages:
    31
    Joined:
    Jul 25, 2011
    Location:
    Southwest Missouri
  6. OiRogers

    OiRogers Member

    Messages:
    1,784
    Joined:
    Dec 3, 2014
    Location:
    'Murica
    That is one i've been eyeing... I have a couple Bassman heads already or that one wouldn't have been available for you to buy.

    I hope it it is all it appears to be from the listing... Looks to be almost 50% off what a Blackface version of the same circuit would sell for.
     
  7. zzmoore

    zzmoore Member

    Messages:
    6,740
    Joined:
    Sep 22, 2006
    Location:
    USA, California, 94585
    The seller needs to yank the chassis and take several, clear, gut shots.
    Nice looking amp btw.......
     
  8. fr8_trane

    fr8_trane Member

    Messages:
    6,235
    Joined:
    Jan 20, 2005
    Location:
    New Brunswick, NJ
    +1. gut shots are mandatory for a vintage amp. You need to know whats going on in there. You cant believe some of the sh!t that is done to these amps through the years.

    I would also request a pic of the filter caps on the underside of the chassis. If they are original caps they may be leaking
     
  9. OiRogers

    OiRogers Member

    Messages:
    1,784
    Joined:
    Dec 3, 2014
    Location:
    'Murica
    Be prepared to give step by step instructions on how to remove / replace the chassis for those photos.

    I've had to walk more than one seller through the steps.
     
  10. jay42

    jay42 Member

    Messages:
    6,800
    Joined:
    Dec 20, 2006
    Location:
    Sandy Eggo
    A buddy of mine has one. Someone replaced all the carbon comp resistors with carbon film. That must have been a nasty bill. I wouldn't do that...replace bad resistors and limited plates with RN65 if the customer wants a smoother attack...so you do want some gut shots. I consider all drip edge models to be 'collectable'.
     
  11. viggersster

    viggersster Member

    Messages:
    31
    Joined:
    Jul 25, 2011
    Location:
    Southwest Missouri
    Last edited: Mar 29, 2015
  12. fr8_trane

    fr8_trane Member

    Messages:
    6,235
    Joined:
    Jan 20, 2005
    Location:
    New Brunswick, NJ
    Everything looks original with the possible exception of the white cap and the resistors on the powertube sockets. Its clean too....cleaner than my old '68.

    IMO, if you want to play the amp as opposed to putting it on display as a relic, then yes your need to replace the filter caps. They dont "look" leaky but I seriously doubt that 47 year old caps are working to their rated specs.

    I would have a tech mod the amp to AA864, give you a 3 prong power cord and replace the filter caps. Its a GREAT amp and possibly the best pedal platform ever. I ran min through a Marshall 1965a 4x10 with a pedalboard and it was amazing. Wish i still had it and right now I'm kicking myself for selling.
     

Share This Page