Airline 62-9015a - Schematic? Tips on Reverb/Tremolo?

Discussion in 'Amp Tech Center' started by mikestearns, Apr 7, 2020.

  1. mikestearns

    mikestearns Tele-Meister

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    I'm about to buy an Airline 62-9015a from a local shop, I haven't had a chance to play it yet but I know going into it that the reverb and tremolo don't work. I get those sounds from pedals, but I'd like to eventually repair them. Does anyone know where I can find a schematic? Are there specific things I should look for to be wrong with these circuits?
     
  2. Bendyha

    Bendyha Friend of Leo's Silver Supporter

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    I think this is the same one, the GDR or 62 just refering to the retailer.
    upload_2020-4-7_17-11-28.jpeg
     
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  3. mikestearns

    mikestearns Tele-Meister

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    The upload didn't come through, do you mind reposting? Thanks!
     
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  4. Bendyha

    Bendyha Friend of Leo's Silver Supporter

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    Maybe this is better;
    upload_2020-4-7_17-15-46.jpeg
     
  5. Snfoilhat

    Snfoilhat Tele-Afflicted

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    That schematic isn't leaping out at me with familiarity and clarity, so take this only as a first-cup-of-coffee first impression, but it looks like both the reverb and the trem may be grounded at J5 when no plug is inserted.
     
  6. mikestearns

    mikestearns Tele-Meister

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    Thanks! Its enough for me to look at while I wait to have the money to pick it up.
     
  7. D'tar

    D'tar Friend of Leo's

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    Likely just missing the footswitch:)?
     
  8. Jon Snell

    Jon Snell Tele-Meister

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    If there is no foot switch, by default both tremolo and reverb will be on.
    No reverb may be just a valve but possibly the tank. If it is the tank, a high impedance input tank is required as there is no transformer.
    I bet the valves are in the wrong sockets!
     
  9. mikestearns

    mikestearns Tele-Meister

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    I'm not sure, I haven't looked at it yet, the Reverb listing just said they didn't and that its most likely a nominal fix but the shop isn't equipped for it. (They do a lot of high end guitar repair and I'm sure don't want to dick around with this thing). I probably won't even concern myself that much with it unless I decide I don't like it and want to flip it.
     
  10. Jon Snell

    Jon Snell Tele-Meister

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    The other possibility of course is, if they are using a standard mono jack lead, (allot of unknowing people do), that will switch the reverb out as the pedal should have twin screened lead and a TRS connector.
    Not a bad deal though either way as worst case will be the tank, around $30 US or a new ECC82 $12 US even just a TRS lead at less.
     
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  11. mikestearns

    mikestearns Tele-Meister

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    The shop ended up getting the trem to work. Channel A is pretty dirty sounding - it’s got some drive to it even at bedroom volumes. Does that seem normal on an amp like this? I feel like in 1965 amps wouldn’t have been made to overdrive, but it is also a budget amp.
     
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