Блок схема Brian May Special
1) Ñåêöèÿ TREBLE BOOSTER ÿâëÿåòñÿ íåïîñðåäñòâåííîé êîïèåé äîìàøíåé ïåäàëè Brian — Treble Booster.
Èìåþòñÿ òîëüêî ñëåäóþùèå îòëè÷èÿ:
a) Íàøà ñõåìà ïîäêëþ÷åíà ê êàñêàäó ïåðåêëþ÷åíèÿ óñèëåíèÿ äëÿ ñíèæåíèÿ ðàñêà÷êè áóñòåðà ïðè
ïîëîæåíèè LOW ïåðåêëþ÷àòåëÿ GAIN. Ýòî òðåáóåòñÿ äëÿ íåèñêàæåííîé ðàáîòû ñõåìû ïåäàëè.
b) Âûõîä îðãàíèçîâàí ÷åðåç ðåãóëÿòîð GAIN.  îðèãèíàëüíîé ïåäàëè îí îòñóòñòâîâàë. Ïðè óñòàíîâêå
ðåãóëÿòîðà GAIN íà ìàêñèìóì (ò.e. â “10”) è ïåðåêëþ÷àòåëÿ GAIN — â HIGH, áóäåò ïîëó÷åí ýêâèâàëåíò
îðèãèíàëüíîé ïåäàëè. Ðåãóëÿòîð GAIN ïîçâîëÿåò âàðüèðîâàòü çâóê.
2) Ðàçúåì BOOSTER OUTPUT ïîçâîëÿåò ïîäàâàòü ñèãíàë áóñòåðà â äðóãîé óñèëèòåëü (íàïðèìåð, êàíàë
Normal êîìáî AC30) äëÿ ïîëó÷åíèÿ êîíöåðòíîãî çâóêà Brian. Èñïîëüçîâàíèå ýòîãî ðàçúåìà îòêëþ÷àåò
óñèëèòåëü Brian May Special. Ýòî ñäåëàíî èç ñõåìîòåõíè÷åñêèõ ñîîáðàæåíèé, ïîñêîëüêó âûõîä ñåêöèè
áóñòåðà çàâèñèò îò ïîäêëþ÷åíèÿ ê ñõåìå “Deacy” èëè âõîäó âíåøíåãî óñèëèòåëÿ, îáëàäàþùåãî ãîðàçäî
áîëüøèì âõîäíûì ñîïðîòèâëåíèåì.
3) ÑÅÊÖÈß ÏÐÅÄÓÑÈËÅÍÈß È ÐÀÑÊÀ×ÊÈ.
Îíà ïîëíîñòüþ îðèãèíàëüíà, çà èñêëþ÷åíèåì ñëåäóþùåãî:
a) Óñòàðåâøèå îðèãèíàëüíûå ãåðìàíèåâûå òðàíçèñòîðû çàìåíåíû êðåìíèåâûìè PNP, íî îíè ðàáîòàþò â
ðåæèìàõ, ïîëíîñòüþ âîññîçäàþùèõ ñòàðóþ ãåðìàíèåâóþ ñòðóêòóðó.
b) Ìåæêàñêàäíûé ñîãëàñóþùèé òðàíñôîðìàòîð çàìåíåí ýëåêòðîííîé èìèòàöèåé, ïîëíîñòüþ ýìóëèðóþùåé
âîçäåéñòâèå îðèãèíàëüíîãî òðàíñôîðìàòîðà.
c) Äîáàâëåíà ñõåìà ïåðåêëþ÷åíèÿ óñèëåíèÿ.
4) ÄÂÓÕÒÀÊÒÍÛÉ ÂÛÕÎÄÍÎÉ ÊÀÑÊÀÄ.
Èñïîëüçîâàí îðèãèíàëüíûé ôîðìàò, íî ïî âûøåïðèâåäåííûì ñîîáðàæåíèÿì ïî äîñòóïíîé òåõíîëîãèè:
a) Ãåðìàíèåâûå PNP çàìåíåíû íà êðåìíèåâûå PNP.
b) Âûõîäíîé òðàíñôîðìàòîð çàìåíåí ýëåêòðîííîé èìèòàöèåé.
5) Ñõåìà TONE îòñóòñòâîâàëà â îðèãèíàëüíîì óñèëèòåëå Deacy. Îíà äîáàâëåíà äëÿ ðàñøèðåíèÿ
âîçìîæíîñòåé êîìáî. Îíà ðàñïîëîæåíà ïîñëå îðèãèíàëüíîé ñõåìû äèñòîðøíà è ìîæåò èñïîëüçîâàòüñÿ äëÿ
èçìåíåíèÿ òåìáðàëüíîé îêðàñêè çâóêà îò âÿçêîãî “-” äî àãðåññèâíîãî “+”. Åå ýôôåêò îòñóòñòâóåò â
öåíòðàëüíîì ïîëîæåíèè ðåãóëÿòîðà “0”.
6) ÝÌÓËßÖÈß ÑÈÑÒÅÌÛ ÄÈÍÀÌÈÊÎÂ. Ýòà ñõåìà ýìóëèðóåò “ïðèìèòèâíóþ” òåìáðàëüíóþ õàðàêòåðèñòèêó
îðèãèíàëüíîé ñèñòåìû äèíàìèêîâ. Âûõîä ñõåìû íàïðàâëåí íà ðàçúåì RECORDING/HEADPHONE OUTPUT
äëÿ íåïîñðåäñòâåííîãî ïîäêëþ÷åíèÿ ê ñèñòåìàì PA èëè çàïèñè, à òàêæå íà âñòðîåííóþ 10-âàòòíóþ
ñèñòåìó óñèëåíèÿ.
7) Ðåãóëÿòîð VOLUME óñòàíàâëèâàåò ãðîìêîñòü óñèëèòåëÿ ìîùíîñòè.
8) 10-ÂÀÒÒÍÛÉ ÓÑÈËÈÒÅËÜ ÌÎÙÍÎÑÒÈ. Óñèëèòåëü è äèíàìèê èìåþò ðîâíóþ ÷àñòîòíóþ õàðàêòåðèñòèêó
è âûäàþò òîò æå ñèãíàë, ÷òî è íàïðàâëÿåìûé íà ñèñòåìó çàïèñè/PA.
9) Ðàçúåì EXTERNAL LOUDSPEAKER ïîçâîëÿåò ïîäàâàòü ñèãíàë ñ âûõîäà óñèëèòåëÿ íà âíåøíèé êàáèíåò
(ïðè ýòîì îòêëþ÷àåòñÿ âñòðîåííûé äèíàìèê). Èì ìîæåò ñëóæèòü ïîëíîäèàïàçîííàÿ ñèñòåìà ìîíèòîðèíãà
èëè ãèòàðíûé êàáèíåò.  îáîèõ ñëó÷àÿõ ðåçóëüòàòà ïðåâîñõîäèò ñàìûå ñìåëûå îæèäàíèÿ, íî òîíàëüíàÿ
õàðàêòåðèñòèêà ìîæåò íåñêîëüêî îòëè÷àòüñÿ.
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Vox Brian May Special. Ðóêîâîäñòâî ïîëüçîâàòåëÿ
GAIN
9V BATTERY SIMULATOR
GAIN SWITCH
SPEAKER SYSTEM
EMULATION
10 Watt
POWER AMP
OUTPUT
TRANSFORMER
SIMULATION
VOLUME
HEADPHONE
AND
RECORDING
OUTPUT
EXTERNAL
LOUDSPEAKER
OUTPUT
TONE
BOOSTER ONLY
OUTPUT JACK
INTERNAL
LOUDSPEAKER
(FULL
RANGE
RESPONSE)
9V BATTERY SIMULATOR
PUSH-PULL OUTPUT STAGE
PREAMP
& DRIVER STAGE
BOOSTER
TREBLE
S
T
S
R
T
S
R
T
S
T
