Tube Amp Archive

Hey, that's very interesting that the cab was 8 Ohms. So, going with the turns ratio of 18.3:1, an 8 Ohm cab would reflect an impedance of 2679 Ohms! So, in this case, the gradient of the load line has actually dropped!!...which would generally push the output stage characteristics a little more int...

Anyone able to put up a plot of the two different load lines?

Pete

Yep, it also stacks up with the two inductance figures as well! Another thing that occured to me is why on earth would anyone write the turns ratio on the side of a "standard" transformer, which is an absoultly rigid parameter to which the whole production run would be built, unless they had altered...

Thakns guys for the replies. Yes it is rather hard to tell if that's a "7" or a "3" from the pic. Now you mention it, it does look quite like a "7", but it also has a curly bit on the bottom so could poss be a "3"? The bit I still have a problem with however is that the turns ratio is clearly writte...

Hi Guys - can anyone enlighten me on the following? How come the photos of #124 show a sticker on the side of the OT (which is the standard Fender part) which have quite different values (ie. reflected impedance) than the standard part. The standard part reflects 2k (using the hammond data as a refe...