Page 2 of 2 FirstFirst 12
Results 36 to 41 of 41

Thread: Twin Reverb tremolo

  1. #36
    Senior Member vintagekiki's Avatar
    Join Date
    Jul 2006
    Posts
    1,724
    Thumbs Up/Down
    Received: 297/2
    Given: 269/0
    Rep Power
    16

    About Vibrato & Tremolo part II

    https://music-electronics-forum.com/showthread.php?t=47738
    Fender Twin Reverb PR186

    https://music-electronics-forum.com/attachment.php?attachmentid=51119&d=1542331115
    Fender tremolo LDR replacement schematics

    http://www.regiscoyne.com/tech/tremolo/
    Mods and tips for Fender Tremolo circuits

    http://www.geofex.com/Article_Folders/sstremolo/sstremolo.htm
    A Solid State Replacement for the Fender Tremolo

    https://www.premierguitar.com/articles/the-59-63-fender-concert-vibrato-1
    The 59-63 Fender Concert Vibrato

    http://surfybear.weebly.com/blog/harmonic-tremolo-using-jfets
    Harmonic tremolo

    https://www.youtube.com/watch?v=k2sS7yvbjQo
    Fender '65 Twin Reverb Reissue Tremolo LDR Problem

    1)
    https://www.youtube.com/watch?v=PMlkTpCvpEY
    Photoresistor Volume-Modulating Tremolo: Design and Function

    https://www.youtube.com/watch?v=YNbRtfCwT0U
    Tremolo mods for vintage amps

    https://www.youtube.com/watch?v=do_0NdnX4bw
    1964 Super Reverb Tremolo Mods

    https://www.youtube.com/watch?v=V9RijIDFB30
    Vibrato tick cure

    https://www.youtube.com/watch?v=O4boNgaiSQo
    Vintage Fender Amplifier Vibrato Fix

    0 Not allowed! Not allowed!
    Last edited by vintagekiki; 12-17-2019 at 12:58 AM. Reason: 1)
    Who does not know and knows that he does not know - teach him Confucius)
    Who knows and does not know that he knows - wake him Confucius)

  2. #37
    Senior Member
    Join Date
    Aug 2013
    Posts
    1,412
    Thumbs Up/Down
    Received: 28/2
    Given: 0/0
    Rep Power
    8
    Alot of info there vintagekiki.. ok thanks for those.

    I bought another roach.. & indeed this has worked/ stronger trem & volume drop is slight: huge improvement. I had thought I put a new one in when I rebuilt this twin reverb, but obviously put the old'un back in.

    I do get some motorboating ticks now tho, but only apparant when not playing.

    Thanks all- & a happy new year.

    1 Not allowed! Not allowed!

  3. #38
    Senior Member vintagekiki's Avatar
    Join Date
    Jul 2006
    Posts
    1,724
    Thumbs Up/Down
    Received: 297/2
    Given: 269/0
    Rep Power
    16
    Happy new year
    Name:  a017.gif
Views: 37
Size:  15.2 KB

    0 Not allowed! Not allowed!
    Who does not know and knows that he does not know - teach him Confucius)
    Who knows and does not know that he knows - wake him Confucius)

  4. #39
    Master Destroyer nosaj's Avatar
    Join Date
    Sep 2011
    Location
    Pace, FL
    Posts
    3,329
    Thumbs Up/Down
    Received: 1,171/102
    Given: 166/36
    Rep Power
    12
    Quote Originally Posted by Sea Chief View Post
    Alot of info there vintagekiki.. ok thanks for those.

    I bought another roach.. & indeed this has worked/ stronger trem & volume drop is slight: huge improvement. I had thought I put a new one in when I rebuilt this twin reverb, but obviously put the old'un back in.

    I do get some motorboating ticks now tho, but only apparant when not playing.

    Thanks all- & a happy new year.
    http://www.geofex.com/ampdbug/vibrato.htm

    From above link
    Sharp tick in vibrato oscillator: On neon/LDR Fenders, on the neon bulb side of the module there is a 10M to one side of bulb, 100K to the bulb; from the 10M straight across the board is the gnd point of the LDR. Put a 0.02 cap from 10M/bulb to the ground point; this works by filtering the output of the oscillator.

    Also I must say I am impressed with your behavior now. Keep it up and stay around.

    Happy new years to you from across the pond.
    nosaj

    0 Not allowed! Not allowed!
    Binkie McFartnuggets‏:If we really wanted to know the meaning of life we would have fed Stephen Hawking shrooms a long time ago.

  5. #40
    Senior Member
    Join Date
    Aug 2013
    Posts
    1,412
    Thumbs Up/Down
    Received: 28/2
    Given: 0/0
    Rep Power
    8
    &say happy new year nevertheless.

    Sea Chief

    1 Not allowed! Not allowed!
    Last edited by nosaj; 12-31-2019 at 07:43 PM. Reason: edited for forum continuity

  6. #41
    Don't forget the joker g1's Avatar
    Join Date
    Feb 2010
    Location
    Canada, somewhere north of Fargo
    Posts
    12,160
    Thumbs Up/Down
    Received: 1,916/24
    Given: 4,820/11
    Rep Power
    24
    Glad to hear the trem bug worked. Happy New Year.

    1 Not allowed! Not allowed!
    "Everything is better with a tube. I have a customer with an all-tube pacemaker. His heartbeat is steady, reassuring and dependable, not like a modern heartbeat. And if it goes wrong he can fix it himself. You can't do that with SMD." - Mick Bailey

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. MV Twin Reverb - No Tremolo
    By earache in forum Maintenance, Troubleshooting & Repair
    Replies: 7
    Last Post: 04-22-2017, 01:27 AM
  2. Twin Reverb tremolo trouble shoot
    By spicoli in forum Maintenance, Troubleshooting & Repair
    Replies: 9
    Last Post: 11-17-2011, 10:03 PM
  3. Troubleshooting tremolo on a Twin Reverb
    By BloozeGit in forum Maintenance, Troubleshooting & Repair
    Replies: 15
    Last Post: 02-14-2011, 09:33 PM
  4. Foot controllable tremolo twin reverb reissue
    By Jaybird12 in forum Mods & Tweaks
    Replies: 3
    Last Post: 08-09-2010, 09:23 AM
  5. ticking tremolo in a SF Twin Reverb
    By JC@ in forum Maintenance, Troubleshooting & Repair
    Replies: 10
    Last Post: 11-02-2006, 03:52 AM

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
  •