Vibroverb Custom RI - the handwired one, to a DIYLC based build

Discussion in 'Shock Brother's DIY Amps' started by dougsta, May 8, 2021.

  1. dougsta

    dougsta Tele-Meister

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    I'm thinking of a building a clone of the chassis from the Fender Vibroverb Custom Re-Issue.

    This is the model produced by Fender a few years back and has stock/Cesar Diaz mods switching and tube/ss rectifying switch.

    I'd eventually like to add a an extra gain stage switch and effects send/return option too, but 1st I'll put together the build as per the Fender factory.

    Having reviewed the very good quality schematic/layout from a Fender doc, a fully populated wired up DIYLC should be a piece of cake...?

    1st thing was to get a BOM spreadsheet together using the schematic, just 4 columns, Component ref #, values, location and any notes.

    I found 1 error in the attached doc, small one but shouldn't be there. One of the doghouse resistors was labeled R8 but R8 already exists on the main board, looks like a typo, should be labeled R80.

    BOM sample.jpg


    doghouse mistake.jpg

    So, if there is one error in the schematic then there may be others :0

    Today I did the main board and doghouse board layout.

    The main board took a while, mainly because there was a board jumper labeled as "2" and couldn't find where it went, eventually traced via the schematic and found the other eyelet labeled "2".
    Now I'm thinking that there must be another board jumper labeled "1" but can't see it.

    What do you guys think?

    I have some low res photos of the chassis guts, anyone have any more?

    Jumper wire # 2.jpg


    Here's a PDF and jpg the DIYLC boards so far:
    Vibroverb Custom RI boards v1.jpg

    BOM to follow.

    Doug.
     

    Attached Files:

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  2. dougsta

    dougsta Tele-Meister

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    A draft BOM, csv format.
     

    Attached Files:

  3. King Fan

    King Fan Poster Extraordinaire Ad Free Member

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    Niiiice. For folks seeing this who don't do DIYLC, let me mention that although it's very powerful it is still a *ton* of work -- a labor of love -- especially on a big amp like this.

    So appreciate it, y'all!!!
     
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  4. dougsta

    dougsta Tele-Meister

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    Thanks for the feed back, I'll keep the coffee flowing and mistakes hopefully to a minimum :)

    I'm going to do the physical build this Summer, the chassis is waiting. There are no BOMs/layouts/wiring diagrams out there of this exact model so will put the prep work in to help get it right.
     
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  5. sds1

    sds1 Tele-Afflicted

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    It's so true, you are nearly building the amp you just can't test it. But I did a few DIYLC's and modded the layouts, etc. before I ever touched a build. It's a super valuable exercise all around.
     
  6. Tom Kamphuys

    Tom Kamphuys Tele-Holic

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    Great work! It's a ton of work.

    Do you have everything to scale? I find it a real advantage you can determine whether it all fits. I'm not good at making stuff up during a build. I lean heavily on DIYLC.
     
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  7. dougsta

    dougsta Tele-Meister

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    I did some measurements on the Fender layout drawing to get the board dimensions:

    https://www.thetubestore.com/lib/th...nder/Fender-64-Vibroverb-Custom-Schematic.pdf

    The rulers in DIYLC are great for getting the scale right:

    rulers.jpg
     
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  8. dougsta

    dougsta Tele-Meister

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    Here's some shots of the factory hand-wired chassis internals, some might say 'rats nest', I've seen a lot better builds from the folks in this forum.

    Vibroverb Custom RI guts.jpg

    Inside chassis left.jpg Inside chassis right.jpg
     
    Last edited: May 9, 2021
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  9. dougsta

    dougsta Tele-Meister

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  10. dougsta

    dougsta Tele-Meister

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  11. dougsta

    dougsta Tele-Meister

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    Doh, I've just found the service manual pdf for the 64 Vibroverb Custom RI.

    It has a full BOM and REV A and B of the circuit diagrams/layouts.

    Could have saved me some time not creating a new BOM but the time spent going thru the minute details of schematic/layout diagrams will help at built time.

    https://schematicheaven.net/fenderamps/custom_vibrolux_manual.pdf
     
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  12. dougsta

    dougsta Tele-Meister

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