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I'm getting ready to build a Princeton Reverb replica

Discussion in 'Shock Brother's DIY Amps' started by teleamp, Sep 16, 2010.

  1. teleamp

    teleamp Poster Extraordinaire

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    I have some time on my hands and I am going to build a BF Princeton Reverb replica.

    I've got parts coming and still need just a few more before I start.

    I am planning on following the original lead dress by looking at the layout drawing and pics on the interweb.

    If you have any detailed PR build pics, they would be greatly appreciated.

    I have played several vintage PR's and all are dead quiet even with the volume on 10, so, I am not interested in any fancy grounding schemes that vary from stock.

    Any advice on a stock build is appreciated.

    Also, what speaker are you guys using. I read a ToneQuest article that recommends the Eminence Legend 102 Alnico, has anyone here tried it?

    Thanks
     
  2. Jerry J

    Jerry J Friend of Leo's

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    Did you have a parts list you followed and do you have everything? In the future, both Weber and Mojo have excellent kits, which you can buy complete or you can choose options - like cabinets, speakers, tubes, etc.

    As for a speaker I would upgrade to a 12" speaker of any flavor you like. Personally, I'd get a Weber Alnico Blue Dog or Silver Bell.
     
  3. big-daddy-59

    big-daddy-59 Tele-Holic

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    Yeah ,if you are gonna follow the original lead dress that means you are going to use the brass ground plate. It's really hard to get a good ground connection to that without a LOT of heat. Get one of those old fashioned 70/150 watt Weller soldering guns in addition to your usual 25-40 pencil iron.
     
  4. teleamp

    teleamp Poster Extraordinaire

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    Thanks guys, what I am building is pretty much a real replica with a couple of changes. The chassis kit just showed up a few moments ago, looks just like a real 64 PR.

    I grew up with Princetons and love the sound they have. So, the 12 inch speakers are out, I've tried that and prefer the 10" for what the Princeton does. One of my best sounding PR's had a stock speaker (I miss that one).

    I had most of the resistors/caps/tube sockets/pots/switches on hand and the kits cost more (except the Weber) than I'm spending out of pocket.

    I've got a cabinet coming from Mather cabs, he builds some really nice stuff.

    And I have a transformer set coming from MM (their prices aren't bad once you've bought 25 pcs).

    +1 on the big iron, no bond without enough heat :)

    Time to start dry fitting and do an inventory to see what pieces I'm missing.
     
  5. tubeswell

    tubeswell Friend of Leo's

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    An original '66 BFPR gutshot - note the general lack of tidyness

    (I built a PR clone last year from a Weber 6A14 kit (first time I used a kit - all previous builds were scratch-built). The grounding sucked and the Pt sucked and the cap-can. I swapped the PT and the filter cap configuration and re-did my own layout and grounding, and now its hum-free. They're cool amps when you get the teething sorted)
     

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  6. teleamp

    teleamp Poster Extraordinaire

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    Thanks tubeswell, there's actually a method to that mess. The more pics I see will give me a good idea of lead dress to follow.

    IIRC, somewhere in there is a wire that make a loop around another...
     
  7. Duke

    Duke Tele-Meister

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    I'd love to get a copy of that layout and the transformers you used. Will pay with beer! :lol:
     
  8. tubeswell

    tubeswell Friend of Leo's

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    The 6A14 how I originally had it (the hummy version)
     

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  9. tubeswell

    tubeswell Friend of Leo's

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    The " AA1165" after I made my own board, changed the layout, grounding, filter caps, PT, and added an IRF820 source follower to the trem circuit (see schematic)
     

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  10. SamBooka

    SamBooka Tele-Afflicted

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    Apparently you dont spend much time in silverface amps :)

    (kidding.. you probably do.. but you know what I mean)
     
  11. teleamp

    teleamp Poster Extraordinaire

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    The transformers just showed up:
    [​IMG]

    I'm just waiting on a few more small parts!
     
  12. teleamp

    teleamp Poster Extraordinaire

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    ok. these ebay princetom reverb chassis kits are nice but not without faults


    [​IMG]
     
  13. pchilson

    pchilson Friend of Leo's

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    So what are the faults?
     
  14. teleamp

    teleamp Poster Extraordinaire

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    the eyelets will not take solder so I made a new eyelet board. tinned with lead free solder?
    the octal tube socket holes had to be opened up a bit.
     
  15. teleamp

    teleamp Poster Extraordinaire

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    my keyboard is shot so I am copy and pasting
     
  16. SamBooka

    SamBooka Tele-Afflicted

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    My chassis for the BFPR was an eabay marsh chassis..
    Wont buy another (although the face plates are nice)

    Galvanized steel chassis is a PITA to solder.. and the screw holes were too big so I had to rotate the sockets and redrill/tap the holes.

    Yours looks nicer but I dont know if I would want the AC convenience plug on mine. How is it coming along?
     
  17. Marcfrom

    Marcfrom NEW MEMBER!

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    Hi Guys,
    Where can I find the Brass Grounding Plate for blackface?
     
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