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Help Traynor YRM-1

Discussion in 'Amp Central Station' started by ce24, Jun 3, 2020.

  1. corliss1

    corliss1 Friend of Leo's Platinum Supporter

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    Yes, all the circled, plus the other blue, plus the big tan ones on the left.
     
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  2. ce24

    ce24 Poster Extraordinaire

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    Yeah, the filter caps correct.....? thanks for chiming in Corliss!
     
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  3. ce24

    ce24 Poster Extraordinaire

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    Im going to document this with pics....should give you professionals a chuckle.
     
  4. ce24

    ce24 Poster Extraordinaire

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    Ok, i have found everything i need at tubes and more antique supplies
    EXCEPT FOR the two bias caps and the one bypayss cap.
    From left to right in the pic is the bypass cap valued at 150uf/16V
    Next bias cap 68uf/63v, other bias cap at 8uf/250v.
    What would replacement values be for these.
    These seem weird values, but what do i know?
    thanks For the help.
    Cheers
     
  5. ce24

    ce24 Poster Extraordinaire

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    87B2FED0-7BA3-468E-950B-F1436EDFB44A.gif 34613B25-1483-48AC-BF6A-8B88B8FABD70.jpeg
     
  6. ce24

    ce24 Poster Extraordinaire

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    Looks like mouser stocks these. Suprised antique supply didnt..... Although antique has them with higher voltages... Higher voltages are ok correct?
     
    Last edited: Jun 13, 2020
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  7. corliss1

    corliss1 Friend of Leo's Platinum Supporter

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    Close as you can get in uF - higher voltage is always fine, just don't want to go lower.
     
  8. ce24

    ce24 Poster Extraordinaire

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    Thanks corliss.....C26 v5b shows 125uf whats in there is 150uf. Im learning romread schematics! Lol.
     
  9. ce24

    ce24 Poster Extraordinaire

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    Parts are ordered! Yaaay! Ill be able to play this at our next gig...!
     
  10. Riffraff12571

    Riffraff12571 Tele-Holic

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    I did a few Plexi mods to my YBA-1 right after I bought it. It's a '71 and still had it's original electro!Lydia so I did the kids while I had It open for servicing. I love the pop too lid. I was in and about unless than an hour and the amp smokes the 1959SLP and 2266 I had.

    Les Paul straight in just after I modded it. It was early on a Saturday and it was 26 degrees where I did the work so my fingers were damn near frozen.



    Here's one with a MIM Tele and a SD-1 set clean with it's volume around 5 just like I used with my real Plexi that didn't nearly as good as the Plexified YBA-1.

     
    Last edited: Jun 13, 2020
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  11. 24 track

    24 track Doctor of Teleocity Silver Supporter

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    excellant Video !
    I remeber seeing the YB1 in vancouver pawn shops for next to zip and I was too uninformed at the time or I would have scarfed up every one I could get my hands on , Yep Im jealous!
     
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  12. ce24

    ce24 Poster Extraordinaire

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    Before I go Plexi on this,I'm just going to service it to original. Play it for a while get use to it tones. Apparently it already sounds close to a Plexi. I read that on the internet...lol.
     
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  13. JohnnyJumpUp

    JohnnyJumpUp TDPRI Member

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    Mmmm...mustard caps! Don't replace those...

    I have a YBA-1 too.
     
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  14. ce24

    ce24 Poster Extraordinaire

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    If you mean the yellow box caps they are staying.
     
  15. ce24

    ce24 Poster Extraordinaire

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    The only parts i could tell were replaced were the filter caps and the yellow sozo and the black cap right next to it.....Of course i only have the video paused to have a look.
     
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  16. dickey

    dickey Friend of Leo's

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    Traynors are really cool amps...only thing I never liked about them is...they are loud as hell, but you are at full volume on 3. Don't get any louder after that. At least the ones I have played/owned.
     
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  17. JohnnyJumpUp

    JohnnyJumpUp TDPRI Member

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    I'm talking about the darker yellowish tubular caps...kinda like grey pupon mustard (on the circuit board, not circled). Those are the real deal "mustard" caps that are found in old Marshalls.

    After your honeymoon period with this amp you may wish to tame it down with a "LarMar" post- phase inverter master volume. It works great and by turning it all the way up it's completely out of the circuit
     
    Last edited: Jun 15, 2020
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  18. ce24

    ce24 Poster Extraordinaire

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    So thats a different MV? It has a MV that seems to work great.
    Thanks for replying.
     
  19. JohnnyJumpUp

    JohnnyJumpUp TDPRI Member

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    My bad...It does have a pre-PI MV built in. I can't remember..is this a 45W or a 90W? Either way, adding the additional MV may be something to entertain down the road.
     
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  20. Paul G.

    Paul G. Friend of Leo's

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    No reason to fix what ain't broke.
     
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