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Aiwa TP-1011 mic preamp DIY build

Discussion in 'DIY Effects Forum' started by Moopha, Jul 28, 2017.

  1. Moopha

    Moopha Strat-O-Master

    573
    Jan 29, 2011
    Northern Caucasus
    Hi there!

    Any Blackmore fans? So, this topic is for you!
    As many of you might know, Mr. Blackmore used (and still uses) Aiwa TP-1011 tape recorder.

    Lots of equipment changes, amps, effects, but Aiwa was a permanent member of his guitar-amp chain!

    Why so? At early years of was reel-to-reel delay device (but lately Blackmore used digital delays).

    Also, it became a part of his sounding, some kind of compressor/booster.

    There are many copycats of his preamp (i.e. BSM), but they are rather expensive, so I decided to build my own one.

    I am currently writing post form my iPhone, so I will write the whole story lately.

    But now I'd like to demonstrate freshly-built PCB:

    IMG_5302.JPG

    IMG_5305.JPG

    IMG_5303.JPG

    You may notice PTP' kind of board — I am very fond of classic point-to-point build method, using turret lugs. So I tried to recreate this in a smaller dimension, hope that will work.

    Any thoughts, dear folks?
     

  2. Dadocaster

    Dadocaster Dr. Stratster Strat-Talk Supporter

    Fascinating. I wish I could do that kind of work.

    D
     
    Moopha likes this.

  3. Moopha

    Moopha Strat-O-Master

    573
    Jan 29, 2011
    Northern Caucasus
    Updates:

    IMG_5368.JPG

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    the metal enclosure drilled, all jacks and switch pre-installed.

    The are some routing issues, so I want to resolder all cables and try to put three transisistors and check pedal in action.
     
    Robins likes this.

  4. Mr. Lumbergh

    Mr. Lumbergh needs you to go ahead and come in on Sunday, too. Strat-Talk Supporter

    Jan 10, 2014
    Initech, Inc.
    I like it, I like it!
     
    Moopha likes this.

  5. Moopha

    Moopha Strat-O-Master

    573
    Jan 29, 2011
    Northern Caucasus
    Re-routing started:

    IMG_5383.JPG

    Pots and transistors to be soldered too
     
    Robins likes this.

  6. Moopha

    Moopha Strat-O-Master

    573
    Jan 29, 2011
    Northern Caucasus
    PCB has been rebuilded, so here it is:

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    IMG_5440.JPG

    IMG_5441.JPG
     
    Robins likes this.

  7. Robins

    Robins Dr. von Loudster Strat-Talk Supporter

    Dec 22, 2010
    Germany
    I like the Marshall knobs \m/
    I think he didn´t used it(preamp/delay) since ´94 when he changed from Marshall to ENGL.


    All the best,
    Robin
     

  8. Moopha

    Moopha Strat-O-Master

    573
    Jan 29, 2011
    Northern Caucasus
    Third re-assemble done:

    IMG_5559.JPG

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    Wiring done:

    IMG_5570.JPG

    IMG_5572.JPG

    IMG_5576.JPG
     

  9. 30Jaypetto

    30Jaypetto New Member!

    Age:
    57
    1
    Feb 11, 2018
    Germany
    WOW!!! Great! Which circuit diagram do you use for it?
     

  10. eclecticsynergy

    eclecticsynergy Strat-Talker

    457
    Sep 23, 2014
    NY
    Yes, can you please post the schematic?

    Looks good. Using Marshall knobs on the box was a great choice!

    Does it sound great? and does it add a bit of compression along with the boost?

    There's always a slight hi-fi compression present in Blackmore's tone. I'm curious whether this was primarily coming from the AIWA, or perhaps might have come from feeding his big Marshall Majors a line level signal. I know that after he stopped using his treble booster in favor of the AIWA tape deck, he had the Marshalls modded to be very bright. And they blew tubes & transformers frequently; I'm thinking perhaps they were fed a line level signal and that caused them to run unusually hot.
     

  11. Johnghiskhan

    Johnghiskhan New Member!

    Age:
    20
    1
    Mar 27, 2018
    Canada
    Please could you upload the schematics and parts list!? It would benefit a good amount of people.