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Comparing tweed and blackface era setups

Tweed era. Voltage drop applied past one 10k-ohm dropping resistor onto screens.

 photo screen resistor tweed deluxe_zpszdvgb0h1.jpg



Blackface era. Voltage drop applied via 470-ohm resistor to each 6V6GT screen. A screen resistor for each 6V6GT. Past the choke.

 photo screen resistor blackface deluxe_zpsrbrd5f1f.jpg


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