Show and tell p2pAmps Rusty-Dawg

[p2pAmps]

Just finished up a new amp I just started building, this one is #1.  I call it the "Rusty-Dawg" after my beloved mini aussie in the shop.  Shout out to Doug as always for the custom boards and also Slucky for keeping me in line on my schematic and his great suggestions.

Cheers

[jordan86]

Great looking build. Is that in the ballpark Super Reverb/Pro Reverb?

[p2pAmps]

Great looking build. Is that in the ballpark Super Reverb/Pro Reverb?

Yeah sort of is.  Ab763-ish for sure.  Single channel, no trem, added presence, 3 knob verb, SR OT as I want a 2Ω option.  Big trannies, and power to spare.  There are some changes for sure so not really the same beast but certainly has some of the same flavors.

[sluckey]

The bar just keeps getting higher! 

[p2pAmps]

The bar just keeps getting higher! 

This is what happens when I drink too much, the bar get higher!  Thanks S....

[jordan86]

Sounds perfect. The Pro/Super is the perfect form factor for the ab763 family in my mind. 2x6L6 and GZ34, oversized iron. Good as it gets.

[echuta13]

Beautiful work as always (my OCD self approves)!

[tubenit]

Stellarly beautiful as always!  Quite a work of art!


I sure enjoy your amp demos & so IF you record one, please share it with us.  Would love to hear that amp with single coils and humbuckers.


Thanks for sharing your amazing handiwork.


with respect, Tubenit

[jordan86]

Is there any audio or noise benefit to running all the potentiometer leads along the preamp ground bus bar like that (unbraided), or is that more so for aesthetics? I mean it looks beautiful no doubt. But is there more to it than looks?

[p2pAmps]

Is there any audio or noise benefit to running all the potentiometer leads along the preamp ground bus bar like that (unbraided), or is that more so for aesthetics? I mean it looks beautiful no doubt. But is there more to it than looks?

The bus you see is the ground bus for the signally part of the amp.  It terminates right below the input and all cathode bypass caps, pots, verb, pre filter caps, and input tie into this ground,  It also is nice for a place to keep the wiring tidy.  The grounds for the bias cap, center taps, power tube cathodes, power supply caps, and presence terminate ground near the PT.  The AC line ground alone.  The bus also make pot service easier in the future.  This method for me at least makes my builds dead quite and predictable.

Cheers

[p2pAmps]

Is there any audio or noise benefit to running all the potentiometer leads along the preamp ground bus bar like that (unbraided), or is that more so for aesthetics? I mean it looks beautiful no doubt. But is there more to it than looks?

The bus you see is the ground bus for the signally part of the amp.  It terminates right below the input and all cathode bypass caps, pots, verb, pre filter caps, and input tie into this ground,  It also is nice for a place to keep the wiring tidy.  The grounds for the bias cap, center taps, power tube cathodes, power supply caps, and presence terminate ground near the PT.  The AC line is grounded alone with a bolt through the chassis.  The bus also make pot service easier in the future.  This method for me at least makes my builds dead quite and predictable.

Cheers