Installed bulk foil resistors in phono amp

But how high can you go? You can’t keep increasing the value hoping for more and more rejection! Maybe the designer deemed 1k enough.

@noromance 

That's right. With a 12AX7 10K still gives you plenty of bandwidth. In guitar amps that value is a lot higher, as the intent is to roll off the input considerably more.


LEDs can work quite well to set up the bias.

Thanks guys. @mulveling @atmasphere 
If my point-to-point wired Croft 25R wasn't such an insanely-tight nest of connections, I'd replace some more resistors!

Cool thread @noromance and thanks for sharing the modification- for those who don’t understand how tight things are near tube sockets on a Croft - you can see a photo of a Croft RIAA - RS ( single chassis ) phono stage in my Poverty Bay virtual system page - Glen is a wizard and builds great sounding gear