I finally broke down and opened up the Jadis to take a look at the bias situation as my left channel was distorting. Each 6550 has a fuse which is where you measure the bias compared to ground. 5 of the 6 tubes on the left channel had the fuse blown. 2 of the 6 tubes on the right channel had the fuse blown.
Here is what I would like to know from someone who has experience with this amp. Does a blown fuse mean a blown tube or just bias that got out of control? Also, what is the value of the fuses if someone knows. All I can make out is 250V but no current rating.
The only tube tester I have access to (Hickok 539C) can't measure 6550 tubes. Any help would be appreciated. Thanks.
Mark
Here is what I would like to know from someone who has experience with this amp. Does a blown fuse mean a blown tube or just bias that got out of control? Also, what is the value of the fuses if someone knows. All I can make out is 250V but no current rating.
The only tube tester I have access to (Hickok 539C) can't measure 6550 tubes. Any help would be appreciated. Thanks.
Mark