Tube Amp Archive

Thank You!! I knew I was doing something boneheaded. I was using the center tap with the diode bridge. Thanks again

Hi, just finished a jcm800 clone and I am having a voltage problem on the main HV secondary. It's a hammond replacement 290HX. I am only getting 185v and 185v on each of the blue/gray taps. I have 120v on the prim. flipping the standby with normal full rectifing it comes out to ~220. the bias and he...

kind of a novice question. How do you connect to just a plain heatsinked 100watt resistor. are you guys connecting the leads to a 1/4" jack to plug into and how?

what is the best way to have a semi permanent rig for burn ins and testing and such. what is everyones setup? Thanks

Thanks

Can somebody explain the purpose of this radial cap on the ac receptor.
I remember reading about this somewhere, but can't remember where or why. Thanks

what are the preferred OT primaries for 4x6l6,el34,kt66,6550/kt88 And what effect does the impedance have on tone. After scouring tube manuals and lurking on here for months I can't seem to figure out the operating points of these. I have found some people say that 4000 is prefered for 2 6l6 and oth...