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Is there a standard scheme for interstage coupling (such as phase inverter) transformer wire colors?

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Is there a standard scheme for interstage coupling (such as phase inverter) transformer wire colors?

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Plate finish lead (pri.) ——- blue B+ (power supply) lead ——— red (whether center tap or not) Plate start lead (pri.) ——– brown Grid finish (sec.) ————- green speaker return (sec.) ———- black (whether center tap or not) Grid start (sec.) ————– yellow -Miles • How much current can my wire size carry? • What size wire do I need for this much current? From the ARRL Radio Amateur’s Handbook: COPPER WIRE TABLE Ohms/ Ohms/ AWG[1] Amps[2] SWG[3] foot[4] meter[4] 8 46.0 10 0.00064 0.00022 10 33.0 12 0.00102 0.00036 12 23.0 14 0.00162 0.00057 14 17.0 16 0.00258 0.00090 16 13.0 18 0.00409 0.00172 18 10.0 19 0.00651 0.00228 20 7.5 21 0.01035 0.00362 22 5.0 23 0.01646 0.00756 24 3.5[5] 25 0.02617 0.00915 26 2.2[5] 27 0.04162 0.01457 Notes: • AWG = American Wire Guage, diameter in 1/1000 of an inch • Amperages are for continuous duty current with insulated wire in conduits, bundles, or cables. • Nearest British S.W.G. number, diameter in mm • Max. wire temp. of

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