Matchless_lightning 电路图 维修原理图.pdf
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Matchless_lightning 电路图 维修原理图.pdf
A 8 ohm SPEAKER .022uF 220K .022uF 220K 100K 1.5K 2 2 3 7 3 2 7 9 B 1 3 1.5K V3 12AX7 V4 EL84 V5 EL84 C C 7 8 6 1.2K 47K 1M 0.01uF .01uF 100K 9 100 5W 3.15 VAC 32/32uF A 336VDC 275 VAC 275 VAC 6 8 4 V6 V5V4V2V1 4455 4499 55 5AR4 2 V3 4 9 5 NEUTRAL LINE 2 AMP SLO BLO 5 VAC 3.15 VAC E 1.5K 220K 25uF 1 2 3 6 7 8 VOL 1MA .0012uF180pF D 1.5K 100K 25uF 1 2 3 6 7 8 D 56K TREBLE 1MA 51pF .022uF 100K BASS 1MA Redrawn by Steve Luckey 01/05/09 MATCHLESS LIGHTNING V1 12AX7 V2 12AX7 POWER Master Volume 1MA 220K 100K 10K .022uF 1M 47K 1M INPUT 32/32uF 22K / 3W22K / 3W B 217VDC C 305VDC ScreensPlates Phase Inverter 22K / 3W22K / 3W D 256VDC E 315VDC Tone Stack Preamp 22uF22uF 120/15W 250uF 100 5W Pwr Amp InPre Amp Out X Cut 1MA .0047uF 1 1 TUBE VOLTAGE CHART 123456789 V1 V2 V3 V4 V5 V6 13101.25HTRHTR13101.25HTR 15701.13HTRHTR253157157HTR 2404463HTRHTR2324263HTR -0.047.5HTRHTR-330-216 -0.047.5HTRHTR-330-216 -335-308-308-335 Voltages measured with Fluke 87 DMM referenced to chassis. All controls set to max CCW. 12AX7 12AX7 12AX7 EL84 EL84 5Y3 335VDC 收音机爱好者资料库 Ra d i o Fa n s .CN TS G T S G V5V4 V3 V2 V1 Ground 51p V6 Board Dimensions:11 1/2 x 3 1/8 Designed by:Steve Luckey Date:January 09, 2009 Matchless Lightning Board Layout + + 250F 50V .022F 630v .022F 630v .022F 630v .022F 630v 1 / 3W1 / 3W Treble 1M-A Bass 1M-A Volume 1M-A + + 22F 50V .0012F 630v + + 22F 500V 180p + + 22F 50V + + 22F 500V .01F 630v XB C Master 1M-A Brilliance 1M-A .0047F 630v .01F 630v 120 ohm 10 watt 1 2 3 45 6 7 8 GroundGround 11.50 2.253.13 TS G Preamp Out Pwr Amp Input * * * These resistors are redundant. If you dont want the Preamp out and Pwr amp input jacks, install these resistors on the board and connect the Treble pot wiper directly to the top side of the 220K. 收音机爱好者资料库 Ra d i o Fa n s .CN 32uf + 32uf 450V 32uf + 32uf 450V CHOKE STBY SWITCH PT HT FILAMENTS OTSCREENPI BCAX PREAMPS 收音机爱好者资料库 Ra d i o Fa n s .CN 11.50 3.132.25 51p + + 250F 50V .022F 630v .022F 630v .022F 630v .022F 630v + + 22F 50V .0012F 630v + + 22F 500V + + 22F 50V + + 22F 500V .01F 630v .01F 630v 120 ohm 10 watt * *
