Results 1 to 7 of 7

Thread: how to wire an output transformer for a blackface super reverb?

  1. #1
    Member
    Join Date
    Jan 2011
    Posts
    63

    how to wire an output transformer for a blackface super reverb?

    hello everybody!

    I'm wiring up a super reverb kit. I'm hooking in the output trany and have two wires left.
    The yellow and orange. Should i cut them back, heat shrink the ends and call it a day?
    The yel and orange have nothing to do with the circuit? The schematic shows three wires on one side of the trany TR3 (brn, red, blue). Black and green going to the speaker jacks then to the 820 ohm res. Thanks for your help and time

    First time amp build for me. bare with me, please

  2. #2
    Supporting Member
    Join Date
    Jul 2007
    Location
    So. California
    Posts
    875
    Do you know the color codes for the taps? If the green and black correspond to the 2 ohm tap and common, (as on the original), then you can heat shrink the other taps as you suggest. I wouldn't cut them just in case you want to use a different speaker combination. (Assuming your kit is 4x10s.)

  3. #3
    Member
    Join Date
    Jan 2011
    Posts
    63
    green : 2ohm
    blk: ground / com.
    Didn't know what to do w/yel and orange
    thanks for the help

  4. #4
    Member
    Join Date
    Oct 2010
    Location
    Sydney Australia
    Posts
    77
    Dandrix as your asking questions about which wire goes where etc it sounds like you haven't got the schematic and layout matched up in your mind. With all due respect it might be advisable to take a week off and study up a bit more to get a clearer understanding of the build. We've all been there and it can be an expensive or dangerous way to learn. I've put a direct short through an innocent rectifier tube because I wired up when I should have been reading more or asking more questions. Posting a link to the layout and schematic your using will help answer questions as well. What type of kit is it Mojo? etc. Sometimes those instructions aren't available on the web so it gets a bit more difficult.

  5. #5
    Senior Member Mandopicker's Avatar
    Join Date
    Jul 2007
    Location
    San Ramon, CA
    Posts
    167
    Yellow could be 4 ohm, and Orange could be 8 ohm. You might consider using an 3-way impedence switch in place of the extension speaker jack so that you can plug into different speaker cabinets.

    Just a suggestion.

    BTW: Is it a Mojo Kit?
    Mandopicker

  6. #6
    Member
    Join Date
    Jan 2011
    Posts
    63
    thanks guys for your help.

    this is my first build. yes, it is a mojo kit.
    my SR is up and running, the vibrato is not working.
    minor set back. all part of the experience, right???

  7. #7
    Senior Member
    Join Date
    Dec 2009
    Posts
    585
    Nice! My first build was a twin reverb kit from mojo. The tremolo were kind of dodgy, I seem to remember replacing the disk caps that came with the kit to ordinary caps. I also re-solder most of the tremolo connections. After this tinkering the tremolo worked properly, with a faint fft fft fft.

    Now, before you start replacing stuff, triple check every thing... again. ;-)
    They said, son, your soldering is ground breaking.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. super reverb output values, please
    By JC@ in forum Maintenance, Troubleshooting & Repair
    Replies: 32
    Last Post: 03-07-2011, 01:33 AM
  2. Bias/balance question for Blackface Super Reverb
    By Newguy in forum Maintenance, Troubleshooting & Repair
    Replies: 110
    Last Post: 01-06-2011, 09:40 PM
  3. Fender Blackface Super Twin schematics...
    By pecorporation in forum Schematic Requests
    Replies: 11
    Last Post: 12-17-2010, 02:35 AM
  4. Rare Parts Fender Super Twin Output Transformer
    By Dancastlebrowning in forum Music Electronics
    Replies: 9
    Last Post: 05-25-2010, 09:08 PM
  5. Super Reverb Blackface Mod Question
    By Rhodesplyr in forum Mods & Tweeks
    Replies: 11
    Last Post: 07-12-2009, 10:02 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •