Wards Airline Amplifier

Discussion in 'Building the Classics' started by Timbo, Nov 17, 2018.

  1. Timbo

    Timbo Member

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    Hi guys, I'm not sure that this amp fits the category of "CLASSIC" but just on looks alone it's got to be.
    https://reverb.com/nz/item/1741341-wards-airline-gim-9131a-1971-black-bronze
    I stumbled onto this one when researching a Supro build and was intrigued by the used of circuits between different amp brands. Valco, Supro, gretsch and Wards Airline.
    So a new build is in progress....
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    The circuit is GIM-9151a with added reverb and tremolo. Trem pinched from the above 9131a circuit.
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    The chassis is in two bits.
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    Love the idea of the over panel lighting.
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    Something different in layout design.
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    Should be an interesting build.
     
  2. jensvonbustenskjol

    jensvonbustenskjol Active Member

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    Hi Timbo

    A very interesting amp, indeed! I think it could be a nice build. From the pictures it looks like it could do with some clean up as well towards layout.

    Cheers
     
  3. Timbo

    Timbo Member

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    Thanks mate.
    I did study the original layout and I'm hoping with some extra thinking I can get it a bit tidier.
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    I've laid it out so the connecting wires are as short as possible and some shielded cable for the longer runs.
     
  4. jensvonbustenskjol

    jensvonbustenskjol Active Member

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    Looks better :)
     
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  5. ricksconnected

    ricksconnected Well-Known Member

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  6. Timbo

    Timbo Member

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    Stage 1 almost done.
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  7. Timbo

    Timbo Member

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    Hi guys, Some progress pics.
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  8. ibmorjamn

    ibmorjamn Well-Known Member

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    Very cool . I have a Airline record player from around 1947. 2- 6V6 tubes , 12" speaker. It powers on but no go. I thought about rebuilding the amp for guitar.
    Nice looking amp build Timbo.
     
  9. ibmorjamn

    ibmorjamn Well-Known Member

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  10. ibmorjamn

    ibmorjamn Well-Known Member

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    Very nice , that should be awesome. Love to here it when it's done !
     
    Last edited: Dec 3, 2018
  11. Timbo

    Timbo Member

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    Thanks mate, Not too far off lighting it up.
    Got a nice vintage Jensen P15Q no the way, then I'll have to build a cab for it.:D
     
  12. jensvonbustenskjol

    jensvonbustenskjol Active Member

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    Fudge me sideways, that's freakin' neat!!!
    Great work =)
     
  13. Timbo

    Timbo Member

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    Hi guys, Injected life and alls good.
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    A couple of minor changes.
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    Voltages are a bit low but I had the transformer on hand.
    Sounds cool.
    The stock channel is super clean.
    The slightly modified channel has a nice bit of SUPRO growl about it.
    Reverb is lush and strong.

    Just a couple of problems...
    Trem doesn't work :scratch.
    I did change the speed pot to 1M as I did not have a 2M but I would not think that it would make much difference. Foot switch is "on"
    The treble pot is wired in reverse ( I had a 50/50 chance of getting that right)
    The stock channel is accessible to change but the other is not, so this will be a builders anomaly.

    Sadly my lighting feature is a bit DULL.
    The 6.3v bulbs are not bright enough to shed enough light through blue Perspex.
    I rewired the supply to the lighting bulbs to DC but I'm only getting 6.7v with the bulbs in.
    I have some LED bulbs that fit the bayonet type holder being delivered. These draw a lot less current so the volts may jump up a bit although they are 12v bulbs.
    Maybe the DC supply can be wired with a voltage doubler rectifier???
     
  14. Timbo

    Timbo Member

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  15. Timbo

    Timbo Member

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    Hi guys, Cab is ready for tolex.
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    Hmmmmmm, I think I'll do it in black.
     
  16. Wildeman

    Wildeman Well-Known Member

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    Dang man, that's some serious work there. Awesome!
     
  17. Guitar-Rocker

    Guitar-Rocker Well-Known Member

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  18. Timbo

    Timbo Member

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    Thanks guys, Cab complete.
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