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National NC-57 case
#3

Yea. I think a repaint is order. 

I probably have a spare bandswitch knob somewhere. Since this is an AA-5 type design I plan to drop a Triad x35 isolation transformer in this.
The other design element I want to change is add some connectors so you can easily remove the speaker. As I’m reading this the filter choke goes to the pins 3 and 4 of the 6V6 audio output tube.
Running two wires topside on the chassis will make that easier. At some point the speaker dies - that way it can be replaced without taking the chassis off. 
I’m debating replacing the dials. Reproductions are available, but I’d have to get a rivet tool.


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Messages In This Thread
National NC-57 case - by bridkarl - 03-09-2025, 01:29 PM
RE: National NC-57 case - by Arran - Yesterday, 05:09 AM
National NC-57 case - by bridkarl - Yesterday, 05:27 PM
RE: National NC-57 case - by GarySP - Yesterday, 05:35 PM
RE: National NC-57 case - by bridkarl - Yesterday, 05:54 PM



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