rl-ultimate-9l-all-wave-1933 电路原理图.pdf
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rl-ultimate-9l-all-wave-1933 电路原理图.pdf
SW Osc 57 1 Meg 50K 0.1 S W Fine Tune Line of Bandswitch Peak for Max S.W. responseSW Conv ANT 20v small capacity 0.253000pf 100r0.25 0.25 58 RF 2A7 56 T T T TTTT This point open circuit in B.C. position of bandswitch T Conv 50K 100pf Osc Pad T 58 I.F. 90v 250K +250v 500K 150pf 100K 500pf 56 Det 0.25 250K Volume ConnNoConn 100pf 50pf 50K 2.5v Filament 80 Rect 240v AC C.T. shaft with Drum Coils The 57, 58, and power pentodes have cathode and pin 4 connected 100pf 400r 100K +250v 400r 10K 10K +5 to +7 v 56 1st A.F. -20v to chassis 500K 8uf8uf 0.02 59 PWR 0.04 Tone Ultimate 9L All Wave chassis 1933/34. FF Speaker SPKR is 4 ohm 8 inch Field coil is 2500 ohms SPKR Plug Re-drawn from original Blueprints, Nov 2015 10K. Early Model Only Log This is the later modified circuit of the 9L. The early design (1932) used * 57 tubes for both converters K.L.S. R1 C6 R1, C6 . No values given on original prints