Hi- I just replaced the tubes on my CJ Art 2 preamplifier. Now, it refuses to turn on!. Do preamps have fuses? ( I know that power amps do, but I just don't know about preamps.)
If so,where are they likely to be located and how many amps should I buy--5, 15, 20?  I hope that the entire power supply didn't go out! THANK YOU VERY MUCH

No flash or smoke?

Did you try to put the old tubes back in? To see if it works.

There are the two fuses next to the transformer.

Cheers George

Check the receptacle for power by plugging in something else.