Guitar Gear Forum

ninjaraf wrote: ↑Thu Apr 24, 2025 2:37 pm I flip them both on and off at the same time.

Yeah me too. It's fine.

Always a good time glad to hear it's working. I fried my crate stealth back in the day....That amp fried within seconds of running without a load.

I have done it on a few other amps with no issues but yeah man that can be catast for tube amps .

Endtime wrote: ↑Thu Apr 24, 2025 4:31 am Unless one does this for a long period of time, ther chance of damage happening is extremely small. I can’t count the amount of times o e done this for the 30 seconds or so. Even longer when I was too fucked up to think straight. Amps are way more robust than a few seconds without a load

This. Steve Fryette did an interview on Kristian Kohle's channel and he said you actually have to really put in some work to damage the transformers.

You done goofed!



Consequences will never be the same.

macaronisalad wrote: ↑Thu Apr 24, 2025 7:29 pm You done goofed!



Consequences will never be the same.

Oh man, that's a classic from the early Internet days. That dude was a back tracing madman

I played a 5 band show that had a Marshall Jubilee in the backline.

The guitarist, in the band before us, put his amp on top of the Jube and unplugged the speaker wire (from the Jube) so he could use the speaker cab below.
He had left the Jube on, without the speaker wire connected, throughout his 40 min set.
As we were swapping places, I noticed that the Jube was on with no speaker wire connected.
I mentioned that a tube amp can blow if it's not plugged into a speaker....
His reply: "I wanted to keep it warmed up for the next guy"

Well, technically, the idea is to turn on the power switch first, and leave the standby switch off. This allows the tube heaters to warm up first before slamming power through them. After letting them warm up for 30 seconds or so, you flip the standby switch and you're good to go. This is what I was taught many years ago. I don't know enough about this stuff to know if it's necessary or not, but I still do it. To turn the amp off, I don't think it really matters. Some amps don't even have a standby switch, like my Rivera Thirty Twelve, so maybe that says something about how important it is.

https://valvewizard.co.uk/standby.html

With properly rated filter caps there is no need for a standby switch.

Zeegler wrote: ↑Fri Apr 25, 2025 8:03 pm Well, technically, the idea is to turn on the power switch first, and leave the standby switch off. This allows the tube heaters to warm up first before slamming power through them. After letting them warm up for 30 seconds or so, you flip the standby switch and you're good to go. This is what I was taught many years ago...Some amps don't even have a standby switch, like my Rivera Thirty Twelve, so maybe that says something about how important it is.

Same. Kind of my ritual when firing up my rig. Reverse that when shutting it down. Have not blown an amp up yet! I have turned a few on not connected to a cab over the years though. Still didn't blow those up either.

I gigged a Rivera Thirty Twelve connected to a 4x12 for years. Had a M50 and a Knucklehead as well. Those amps are so good!

eyeball987 wrote: ↑Sat Apr 26, 2025 1:39 pm

Zeegler wrote: ↑Fri Apr 25, 2025 8:03 pm Well, technically, the idea is to turn on the power switch first, and leave the standby switch off. This allows the tube heaters to warm up first before slamming power through them. After letting them warm up for 30 seconds or so, you flip the standby switch and you're good to go. This is what I was taught many years ago...Some amps don't even have a standby switch, like my Rivera Thirty Twelve, so maybe that says something about how important it is.

I gigged a Rivera Thirty Twelve connected to a 4x12 for years. Had a M50 and a Knucklehead as well. Those amps are so good!

I'm in love with mine! I've never really gotten along with a combo amp before. They always sound too boxy and small to me. I've had my Knucklehead II for years, but I wanted something more portable. Every time I turn this thing on, it puts a smile on my face. I haven't tried plugging it into a 4X12 yet. Maybe I'll try that tonight.