It was the cable going to and from the reverb tank. After swapping tubes and having the hum problem, I began tapping and found that tapping and moving the reverb tank resulted in the hum/no hum. I found the 4 tab connector loose. I went to Radio Shack and bought a better connector.
So, when you get the reverb tank you can check that as well. My tank sounds even better now than it did before.
You found your issue but this is a common issue for another reason .... A lot of folks think this is tubes since it comes and goes but in most cases it is the ground on your wall and noise comes and goes on the common ground.
Try a ground lift .... one of those two prong adaptors on the reverb unit .... I bet you find the problem goes away.
simpleton: My gramps use to say," Growin' old ain't for sissies "
Sept 5, 2014 10:20:00 GMT -7
Guitar O' Clock: It happens frequently that nothing is better than something.
Sept 5, 2014 10:45:14 GMT -7
thunderstruck(formerly doc001): "Growing up leads to growing old and then to dying. And dying to me don't sound like all that much fun."
Sept 6, 2014 21:52:33 GMT -7
Don: Life just gets better and better!
Sept 8, 2014 18:16:24 GMT -7
djcakadave: It seems there was something I needed to do, now what was it I was thinking about?
Sept 8, 2014 21:12:12 GMT -7
simpleton: I just had a cosmic rainbow experience with the Electric Apricot
Sept 10, 2014 21:23:24 GMT -7
Joel B: I still like BEvERageS .....
Sept 11, 2014 10:58:34 GMT -7
The Bad Poodle: The first five days after the weekend are the toughest. four down, one to go.
Sept 11, 2014 16:48:33 GMT -7
roscoenyc: obligatory thanks for Z talk blurt!
Sept 11, 2014 17:47:50 GMT -7
maddog: You mean you busted out of jail?....No, ma'am. We released ourselves on our own recognizance.....What Evelle here is trying to say is that we felt that the institution no longer had anything to offer us.
Sept 12, 2014 10:42:52 GMT -7
KeithA: ^^^^You know Lee, that quote sound like it could as easily have come from 'O' Brother, Where A'rt Thou" as well!
Sept 12, 2014 11:37:24 GMT -7
KeithA: "Well, I'ddin this place a geographical anomaly...two weeks from everywhere" !
Sept 12, 2014 11:38:45 GMT -7
freddieg: Any of you boys smithies ? Or otherwise learned in the metallurgical arts ?
Sept 12, 2014 22:04:05 GMT -7
maddog: What'd the devil give you for your soul, Tommy?.....Well, he taught me to play this here guitar real good....Oh son, for that you sold your everlasting soul?.....Well, I wasn't usin' it
Sept 13, 2014 7:45:44 GMT -7
KeithA: ^^^^^^ Love that one Lee !
Sept 13, 2014 14:53:57 GMT -7
freddieg: Them soggy bottom boys sang in yonder can, and skedattled.....
Sept 13, 2014 20:45:37 GMT -7
The Bad Poodle: Big $$$ potential. Self starters wanted. Rock and Roll attitude!
Sept 15, 2014 15:51:25 GMT -7
BritInvasion: Hmmmm.......Can I fit an entire paragraph in this thing?
Sept 16, 2014 7:07:59 GMT -7
The Bad Poodle: The dude is not in, leave a message
Sept 16, 2014 21:01:39 GMT -7
tortyguy: Happiness is a warm Z!!!!
Sept 17, 2014 8:56:41 GMT -7