amplifier & power supply
(for a stereo version, all components must be purchased double)
Resistors
(1% metal film, 600mW unless other rating indicated)
R1 = 392k
R2,R5,R12,R20,R32 = 1k
R3,R4 = 150kΩ 2W (BC PR02 series)
R6,R15,R19,R45 = 100(
R7 = 22kΩ 3W (BCPR03 series)
R8 = 2kΩ43
R9 = 274(
R10 = 560(
R11 = 18k(
R13,R17 = 392(
R14,R18 = 2Ω2
R16 = 20k
R21,R22 = 0Ω22 4W (Intertechnik MOX)
R23 = 10( 2W
R24,R26 = 182(
R25 = 1kΩ5
R27 = 3kΩ3
R28,R29 = 1M
R30 = 330k
R31 = 10M
R33, R34, R35 = 100k
R36 = to be determined (0.22( using 3N604)
R37,R38 = 100( 1W (see text)
R39 = 330(
R40 = 82kΩ 3W
R41 = 150kΩ 3W
R42,R43 = 1kΩ 1W
R44 = 4Ω7
P1 = 2kΩ,15-turn preset, T93YB (Vishay) or 3296Y (Bourns)
P2,P3 = 5kΩ,15-turn preset, T93YB (Vishay) or 3296Y (Bourns)
Capacitors
C1 = 100nF 400VDC
C2,C3 = 3(F3 400VDC (ClarityCap SA 630 V audiograde capacitor)
C4,C6,C8,C10 = 270(F 50V (Panasonic FC, Farnell # 9692436)
C5,C9,C12,C14,C22 = 100nF 50V
C7 = 100nF (Vishay MKP-1834, Farnell # 1166887)
C11,C16,C17 = 10(F 50V
C13 = 47(F 50V
C15 = 1(F 250V (e.g. Wima foil capacitor, see text)
C18 = 22(F 63V
C19,C20 = 47(F 25V
C21 = 220(F 50V
C23 = 2nF2 (Wima FKP-1/700 VAC, see text)
C29,C30,C31,C35 = 2nF2 (Wima FKP-1/ 700 VAC)
C24 = 150(F 450V
C25 = 100nF 450 VDC
C26 = 10(F 400V
C27,C28 = 22(F 400V
C32,C33,C34,C36,C37,C38 = 4700 (F 63V (BC056, 30x40 mm, Conrad Electronics # 446286-89)
C39 = 10(F 25V
Cfb = 56pF (optional)
Semiconductors
D1 = not used
D2,D3 = UF4007 (if necc. 1N4007)
D4,D5 = 1N4001
D6,D7,D8 = 1N4148
D9,D10,D11,D12 = BY228
D13 = 1N4007
LED1 = LED, 5mm, red
Z1 = zener diode 110V 1.3W
Q1 = BD139
Q2 = 2SC2073
Q3 = 2SA940
Q4,Q5 = 2SC5200
Q6,Q7 = BC550B
Q8 = BS170
Q9,Q10 = BC547B
Qbax = 2SC1815BL
U1 = LM337
U2 = LM317
U3 = TL783 (Conrad Electronics # 175012-62)
Valves
V1 = ECC83 (pref. JJ Electronics)
V2 = ECC88 (pref. JJ Electronics)
Miscellaneous
B1 = bridge rectifier 600 V piv @1A (DF06M)
B2,B3 = bridge rectifier 400V piv @ 35A
T1 = mains transformer, sec. 30V + 250V + 6.3V (Amplimo type 3N604)
T2 = mains transformer, sec. 2x28 VAC, 300VA (Amplimo type 78057)
RLY1 = output relay 24V (e.g. Amplimo type LR)
Heatsink profile for U3 (Fischer SK104 25,4 STC-220 14K/W (e.g. Conrad Electronics # 186140-62)
Heatsink profile for U1 and U2, Fischer FK137 SA 220, 21K/W (e.g. Conrad Electronics # 188565-62)
Heatsink profile for Q4 and Q5, 0.7K/W or better
9-way valve socket (Noval), PCB mount, for V1 and V2
Amplifier board, no. 070069-1 (mono)
Supply board, no. 070069-2
Suggested suppliers
Toroidal transformers and output relay:
www.amplimo.nl
ClarityCap SA capacitors:
www.claritycap.co.uk
www.capsandcoils.com
http://wduk.worldomain.net
(OEM like Soniqs SAX)
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