Amp pops when putting on standby

Discussion in 'Amps and Cabs' started by GloryJones, May 3, 2016.

  1. GloryJones

    GloryJones Member

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    I've got a brand new 68 Custom Deluxe Reverb. After the amp has been running, it makes a pretty loud pop when I put it on standby. I just re-tubed and biased it but it did not solve the problem. Any thoughts/suggestions? What causes this to happen? Other than it being annoying, is it doing any damage to my amp?
     
    Last edited: May 3, 2016
  2. Ron

    Ron Supporting Member

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    Install a 0.01uf/1kV disc cap across the standby switch.
     
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  3. Jettrock

    Jettrock Silver Supporting Member

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    Bad tube somewhere. Probably preamp. Even though you re-tubed it.
     
  4. drbob1

    drbob1 Silver Supporting Member

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    Don't put it on standby, it's a relic of a bygone era and not helpful or necessary.
     
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  5. kimock

    kimock Member

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    Hey wait a minute Doc!

    There's one super-handy-stand-by trick which might qualify for helpful: orienting an output tube with a busted locater pin.
    Just leave the amp on standby and rotate the tube until the heaters light.

    That could be helpful.

    Could save money too.
    If you number yourself among the less fortunate, thrift may prove a necessity.
     
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  6. hpharley90

    hpharley90 Member

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    my new DRRI does the same thing......don't use standby....just shut it off.....then put switch in standby for next start up......that's what I do....
     
  7. Roe

    Roe Member

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    perfectly normal. add a big 220k power resistor across the switch for an easy fix
     
  8. GloryJones

    GloryJones Member

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    Thanks for the responses. So in short, there's nothing wrong with my amp? This is normal? I've got a string of shows coming up and I can't afford to have it die on me. If it matter, the amp sounds great. Not a bad sound coming out of it...just the pop.
     
  9. VJF

    VJF Member

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    Completely normal
     
  10. Mouzik

    Mouzik Member

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    Same here. 65 DRRI
     
  11. H. Mac

    H. Mac Member

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    Great idea! Perfect timing too, as I have a 6V6 with a broken locator pin.
     
  12. T Dizz

    T Dizz Member

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    Amp is fried.. will take off your hands.
     
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  13. drbob1

    drbob1 Silver Supporting Member

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    I guess the broken locator pin thing would work. I've taken out the PT of an amp by accidentally putting a rectifier in wrong, so I won't use a pin without a locator tube without using one of those adapters you can buy on Ebay...
     
  14. swiveltung

    swiveltung Member

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    Completely normal even for the vintage ones.
     
  15. tiktok

    tiktok Supporting Member

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    As soon as I read the title I thought "DRRI?"
     
  16. snow and steel

    snow and steel Supporting Member

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    Very normal on a LOT of Fender amps.
     
  17. primal

    primal Supporting Member

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    I was expecting the amp to be an Electra Dyne.

    When I owned one it was the one thing I hated about that amp. A loud pop every time I put it in standby.

    I eventually just shut it off and just made sure the standby switch was on for the next time I turned it on
     
  18. DRS

    DRS Member

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    Many tube amps I've owned popped on the Standby. It has never bothered me. So it pops? I make a racket banging into things with my guitar on, too.
     
  19. e???

    e??? Member

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    No nothing wrong at all. I got the same amp, and mine does it too. I just don't use the standby too much anymore. Works fine
     
  20. gkoelling

    gkoelling Member

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    Turn the reverb down to zero before switching to stand by.
     

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