Switch to change from 6L6 to EL-34?

[Mike77]

Would someone please explain how to switch the switch on a Dual Rec from 6L6 to EL34?

 

[user 17506]

There's a small piece of black tape covering the switch. Remove that and you're in business.
That's how it is on my rectifier anyways.

 

[fluff191]

Its actually a removable plastic tab that you can pop out with a screwdriver.

 

[user 17506]

On mine it's just a bit of adhesive tape which you can peel off with your fingernail. I did it today on my single rectifier. It's the same as the rectifiers I was looking at in a shop the other day.