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Post subject: Standby?
Posted: Fri Jan 02, 2009 2:38 pm
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Okay. After all these years, I finally own a tube amp. I think I understand that you are to turn power on then standby, leave standby on for roughly 30 secs. then turn the standby off? When I do this, everything is silent -no sound at all? I need some assistance here, please. Guess I should have payed more attention when my band mates turn the tube amps on and off.


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Posted: Fri Jan 02, 2009 3:31 pm
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Ok Make sure your volume and gain controls are set to zero. make sure both switches to OFF. Switch the power switch to ON. leave it alone for 30 secs, some people say 2 minutes. Then switch the standby switch to ON. Then raise your volume and gain levels to the desired ammount.
To switch off, lower your volume and gain, switch the standby to off, leave it for 30 secs, switch the power off.
You dont have to raise/lower the volume and gain when powering up or down, i just do it as a second safety net.

That'll help preserve your output section.

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Posted: Fri Jan 02, 2009 3:45 pm
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I’m confused now; I’m a new owner of a Super Reverb and I thought to power up, is the opposite of what you posted. Don’t think I’m being critical, because I did say, new owner. Both the standby and power switch have to be in the on position for any sound to come out of my amp. I’ve been using the standby first for a few minutes and then adding the power switch. To turn off, I’m reversing the process. Is this wrong?


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Posted: Fri Jan 02, 2009 6:02 pm
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ok first off i've never seen a standby switch on a fender amo. My experience is from my marshalls. With marshall amps you operate the power first, to get some current into the power section, then you switch the standby to on so that you can hear the amp. Marshall, peavey, carlsbro, mesa, soldano and park all work that way. I cant see why fender wouldnt.

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Posted: Sat Jan 03, 2009 5:00 pm
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nikininja wrote:
ok first off i've never seen a standby switch on a fender amo. My experience is from my marshalls. With marshall amps you operate the power first, to get some current into the power section, then you switch the standby to on so that you can hear the amp. Marshall, peavey, carlsbro, mesa, soldano and park all work that way. I cant see why fender wouldnt.


Most Fender amps(tube) i've owned DID have standby switches. :roll:
Peter


Last edited by lostindesert on Sat Jan 03, 2009 5:13 pm, edited 2 times in total.

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Posted: Sat Jan 03, 2009 5:02 pm
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YeeHaw wrote:
I’m confused now; I’m a new owner of a Super Reverb and I thought to power up, is the opposite of what you posted. Don’t think I’m being critical, because I did say, new owner. Both the standby and power switch have to be in the on position for any sound to come out of my amp. I’ve been using the standby first for a few minutes and then adding the power switch. To turn off, I’m reversing the process. Is this wrong?


Power on first, then standby on.
When shutting down first standby of, then power.
In between sets (when playing with a band) use the standby switch.


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Posted: Sun Jan 04, 2009 9:19 am
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This has been an interesting thread and one of the reasons I enjoy the Fender website. It seems I’ve been powering up my new amp, reversing the steps, for a couple of months now.

The Fender ’65 Super Reverb Owners Manual doesn’t go into a lot of detail, but does state: “In Standby mode, power is supplied only to the tube filaments to keep them warm and ready to operate. Use standby during short breaks to eliminate warm-up time and extend the life of the tubes”.

The Marshall JVM Owners manual seems to go into a little more detail on the basics of powering up. They recommend:

1. “Ensure that both Master Volumes on the front panel are set to zero.”
2. “Turn the front panel Power switch on. This will glow red then wait for a couple of minutes.”
3. After waiting a couple of minutes, engage the Standby switch—“. “—the Standby switch should also be used to turn the amplifier on and off during breaks in a performance.”

I know this information is a bit redundant, from what’s posted above.

Thanks for teaching an old dog a new trick!


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Posted: Sun Jan 04, 2009 12:19 pm
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I never turned the volume on my amps to zero. I usually have my guitar turned down just in case the volume is high on the amp. More to protect the speakers more than anything else. Not all Fender amps have standby switches. My SF Champ doesn't have one. Usually only tube amps have them.

Just turn the power switch on, wait about 60 seconds then flip the standby.
Power down put it back in standby for around the same amount of time and power off. If you take a break at a gig, just put it in standby.

It's real simple. Don't read too much into it. A lot of people I play with, just flip them both on with no real ill effects. Some people think it makes the tubes last longer. I've never really noticed much of a difference between my non standby amps and my standby switched amps in terms of tube life in the 40+ years I've been using tube amps.


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Posted: Mon Jan 05, 2009 1:34 pm
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Well like i said my experience with fender valve amps is limited. Basicaly its my blues jr and vibrochamp. Neither of them have a standby. Lowering volume eliminates speaker pops.

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Posted: Tue Jan 06, 2009 9:43 pm
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easy way to remember, the power should always be the only switch engaged by itself. It caps the beginning and end of amp use.

ON: Power, wait, standby

OFF: standby, wait, power

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Posted: Wed Jan 07, 2009 7:57 am
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musicpengins wrote:
easy way to remember, the power should always be the only switch engaged by itself. It caps the beginning and end of amp use.

ON: Power, wait, standby

OFF: standby, wait, power


Great Tp, Thanks.


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Posted: Wed Jan 07, 2009 8:46 am
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I have a small Champ 12 with no stanby and I turn the power to On with the amp cranked, never had any damage done to it since 1987. I let it warm up for some time then plug in a guitar. I guess it might not be the right way :) I do hear the speakers pop Nikininja is talking about though, and some killer hum for a few secs before I plug in.


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Posted: Thu Jan 08, 2009 8:24 pm
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The terminology associated with the Standby switch is a little "sloppy". The amp is in Standby mode when the Power switch is on and Standby switch is off.


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Posted: Sun Jan 11, 2009 11:49 am
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atolleter wrote:
I have a small Champ 12 with no stanby and I turn the power to On with the amp cranked, never had any damage done to it since 1987. I let it warm up for some time then plug in a guitar. I guess it might not be the right way :) I do hear the speakers pop Nikininja is talking about though, and some killer hum for a few secs before I plug in.

Thats because what a stand by does is help prolong tube life by bringing heat up on the tubes before putting full voltage across them when cold. If you have a amp that has a tube rectifier it is doing this automaticaly as the rectifier tube heats up. If you have a solid state rectifier full voltage will go to the tubes the moment the switch is on so stand by slows this process by heating the tubes first for a minute or so. When you turn the amp off just flip the power off and that will let the tubes bring the voltage down across the power supply.

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Posted: Sun Jan 11, 2009 4:20 pm
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Any reason why the swtiches are always located behind the amp?
Am I actually the only one who is a bit annoyed with that thing?
I can't see the reason exept the looks... something i'm missing?

As for the power/standby issue,

Put it this way, standby is like a MUTE switch, but INSIDE the amp...so you use it when you start/shut down the amp so there's no noise and the tubes can warm up, you use it to plug/unplug jacks in inputs and effect loops or between stomps, or when you change guitar, so nothing pops. Putting the amp on standby just before turning it off prevents the amp from making noise when you turn off the power and also spares you little surprises the next time you open it.

I'm the singer of my band and I put the amp on standby when i'm not playing in a song so I can be assured not a single noise will come out of my amp... (volume knobs sometimes play little tricks even when they're completely turned down to 0)

I wonder if anybody ever thought of a standby footswitch... would also be useful in my opinion...if possible at all

My two cents!


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