Gibson "Goldtone" GA-30RVS Скачать руководство пользователя страница 3 | Manualshive

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Содержание "Goldtone" GA-30RVS

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Страница 4: ...switches the extra gain stage in or out of the signal path The relay itself is switched on or off by the push pull switch on RV1 With RV1 pulled out the relay can also be switched on or off by the tip connection of SK3 Footswitch 1 V1b is the extra gain stage configured similar to V1a but without the cathode bypass capacitor C62 is added across the anode resistor R87 to smooth out the top end and ...

Страница 5: ...f the reverb returns out off phase which produces the surround sound reverb effect The signal from the output of IC3a is split two other ways for the effects loop One goes to the series parallel switch SW1A the other goes to the SEND socket R34 and R1 are a potential divider to reduce the nominal send level to about 20dBu SK6 and SK7 are the LEFT MONO and RIGHT RETURN sockets respectively Each of ...

Страница 6: ...d if there are any problems with supply SW3 selects the output impedance of the External Speaker Outputs SK8 and SK9 These can be set to either 16Ω or 8Ω When a jack plug is inserted into either of these sockets the corresponding internal speaker is disconnected POWER SUPPLIES All three supplies HT ac heater and DC supplies have secondary fusing on the PCB This is for approvals and to protect the ...

Страница 7: ...a current limiter This allows the supply voltage to ramp up at switch on when the heater filaments of the preamp valves draw considerably more current while cold R117 and R118 halve the supply voltage to provide the opamp bias voltage and as shown on the circuit diagram the DC supply is routed through the filaments of two of the valves in series This will result in each filament having the nominal...

Страница 8: ... EL84 6BQ5 s run in Class A in stereo two EL84 s per side REAR PANEL CONTROLS INPUTS HI LO LINK Two jack sockets are provided for connection to your instrument The HI input is a high impedance high sensitivity input This can be used with both passive and active guitars and depending on the level of output from the guitar and the VOLUME setting allows the amplifier to be driven hard into overdrive ...

Страница 9: ...nstant control over a range of clean and overdriven tones we recommend turning the VOLUME control all the way up Without the extra gain stage switched in the player can then back off the volume on their guitar for clean sounds turn up fully for some crunchy responsive power amp overdrive and then kick in the extra gain stage for thick lead tones with lots of sustain TONE Unlike other single tone c...

Страница 10: ... depend on what kind of effects unit is used and what overall effect is desired But generally if time delay effects are used such as delay echo chorus flanging phasing etc then the PARALLEL setting is usually preferred If volume or EQ related effects are used such as overdrive distortion compression graphic equalisation wah wah or volume pedals or if a multi effects unit is used with a combination...

Страница 11: ...and get TWO 4x12 s set to 16Ω MONO to plug into With the cabinets spaced apart a reasonable distance the sound is huge Especially considering that the cabs are being driven by two fifteen watt amps Adding a stereo chorus or delay to the effects loop at this stage is quite simply more than a poor boy can take POWER SWITCH OFF STANDBY ON As the name implies this switches the amplifier from OFF to ST...

Страница 12: ... s while the four on the right V5 V6 V7 V8 should be EL84 6BQ5 s V1 is used for the input gain stage and 2 nd gain stage V2 is used for the 3 rd gain stage and cathode follower that drives the tone network V3 is used for the left side phase splitter V4 is used for the right side phase splitter V5 V6 are the left side power stage valves V7 V8 are the right side power stage valves If the need should...

Страница 13: ...0KΩ NOMINAL SIGNAL LEVEL 20dBu LEFT MONO RETURN IMPEDANCE 470KΩ NOMINAL SIGNAL LEVEL 20dBu RIGHT RETURN IMPEDANCE 470KΩ NOMINAL SIGNAL LEVEL 20dBu CIRCUIT TOPOLOGY PREAMP AND POWER STAGES 100 VALVE REVERB AND EFFECTS LOOP SECTIONS DRIVEN BY INTEGRATED CIRCUITS SPEAKER TWO 10 CELESTION VINTAGE 10 S POWER RATING 2x 15WRMS PER SIDE STEREO 30WRMS TOTAL ...

Страница 14: ...2 R33 R72 R108 10K 1W 72 RM10K 1WATT 5 R110 R111 R112 R113 R114 15K 1 4W 72 RM15K 1 R120 27K 1 4W 72 RM27K 2 R8 R119 47K 1 4W 72 RM47K 3 R93 R99 R125 56K 1 4W 72 RM56K 1 R11 68K 1 4W 72 RM68K 2 R51 R52 100K 1 4W 72 RM100K 15 R3 R7 R14 R20 R21 R22 R35 R38 R45 R59 R60 R61 R62 R63 R66 100K 1W 72 RM100K 1WATT 7 R87 R91 R92 R95 R98 R101 R104 120K 1 4W 72 RM120K 5 R34 R40 R44 R64 R67 150K 1 4W 72 RM150K...

Страница 15: ...1 C32 C33 6n8 100V axial 72 C6N8 100VCA 3 C8 C12 C45 10n 100V axial 72 C10N 100VCA 3 C15 C34 C37 22n 100V axial 72 C22N 100VCA 3 C9 C48 C51 33n 100V axial 72 C33N 100VCA 2 C36 C39 100n 100V axial 72 C100N 100VCA 20 C2 C10 C11 C16 C17 C18 C19 C20 C23 C24 C25 C35 C38 C42 C55 C65 C66 C67 C68 C69 330n 50V axial 72 C330N 50VCA 1 C89 47p 500V ceramic 72 C47P 500VCD 3 C50 C53 C61 100p 1KV ceramic 72 C100...

Страница 16: ...CTORS 3way 0 1 72 HEAD 3W 2 6 HTR1 HTR2 HTR5 HTR6 HTR7 HTR8 SOCKETS 1 4 MONO JACK SKT 72 SKT JCKBNBG 8 SK1 SK2 SK4 SK5 SK6 SK7 SK8 SK9 1 4 STEREO JCK SKT 72 SKT JCKBBBG 1 SK3 SWITCHES Mini Toggle DPDT vert 73 SWT M TGL VCO 1 SW1 Mini Toggle SPDT vert 73 SWT M TGL PCB 1 SW2 Large slide DPDT horiz 73 SWT SLIDER DP 1 SW3 POTENTIOMETERS 1M0 PULL SWITCH 73 POT A1M PS 1 RV1 250K LIN DUAL GANG 73 POT B25...

Страница 17: ...1 M3 NUT 71 NUT M3 ZINC 2 INSULATING KIT 72 MOS PAD TO220 1 Heat sink compound Put between TR8 heat sink chassis FLYING LEADS Cathode heater lead C00 LEAD V12 HTR 1 connect to HTR2 HTR7 HTR8 Cathode heater lead C00 LEAD VTN HTR 1 connect to HTR1 HTR5 HTR6 Reverb input C00 FLY TRAMP R 1 RVB1 Reverb output C00 FLY V12R 1 RVB2 Grommet 45 GROMM 2 1 Put over RVB1 RVB2 before soldering ...

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