Blue Jinn
Well-known member
I wanted to post this for thoughts/criticisms. Have built a *few* tube circuits, so as far as an amp goes wanted to start out with something relatively simple. I have an old book from Popular Science, has quite a few amp projects from this one, to 6B4G, a few variations on the All American 5 superhet....
The AC line phono amp seemed the most simple to do and adapt. Also, pretty simple to layout on a tagstrip.
I figured I could replace the 50C5 with 6W6, and different PSU. Also, perhaps replace the 12AT6 with a 12AX7 or a 6N2P and use DC for the heaters. (wasting a triode section initially, but thought could either add a another gain stage, or if it works out OK, build a stereo version. ) Initially, use an Edcor XSE transformer.
BTW the edcors have a screen tap too, is there any reason not to use it?
The PSU is from the Duncan amps tool, and I wanted to keep the voltage about the same as the original to start out with so I could use the same components overall and same design, except for tube selection.
The AC line phono amp seemed the most simple to do and adapt. Also, pretty simple to layout on a tagstrip.
I figured I could replace the 50C5 with 6W6, and different PSU. Also, perhaps replace the 12AT6 with a 12AX7 or a 6N2P and use DC for the heaters. (wasting a triode section initially, but thought could either add a another gain stage, or if it works out OK, build a stereo version. ) Initially, use an Edcor XSE transformer.
BTW the edcors have a screen tap too, is there any reason not to use it?
The PSU is from the Duncan amps tool, and I wanted to keep the voltage about the same as the original to start out with so I could use the same components overall and same design, except for tube selection.
