Another absolute preamp. The gain is approx. 41dB, with the optional stage, it reaches 60dB. Its particularity is a passive RIAA correction inserted between the first and second stages.
C1: 220 uF 450 V, electrochemical.
C2: 100 uF 35 V, Tantalum.
C3: 0,47 uF, ITT PMT/2R, 400 V.
C4: 20 nF, Mica, 500 V.
C5: 20 nF, Mica, 500 V.
C6: 0,5 uF, oiled paper, 600 V.
C7: 0,47 uF, ITT PMT/2R, 400 V.
C8: 0,47 uF, ITT PMT/2R, 600 V.
C9: 220 uF, 500 V. electrochemical.
C10: 0,5 uF, oiled paper, 600 V.
C11: 0,1 uF Mylar, Shizuki, 600 V,1 %.
C12: 30 nF, Mica, 500 V.
C13: 0,47 uF, ITT PMT/2R, 400 V.
C14: 0,5 uF, oiled paper, 1 500 V.
C15: 0,1 uF, Polystyrol, 400 V.
C16: 20 nF, Mica, 500 V.
C17: 220 uF 500 V, electrochemical.
C18: 47 uF 50 V. Tantalum.
C19: 0,47 uF 400 V, ITT PMT/2R
C20: 0,1 uF Polystyrol, 200 V.
C21: 0,47 uF x 5, 600 V ITT PMT/2R.
C22: 1 uF 1 500 V. oiled paper.
C23: 0,1 uF polystyrol, 500 V.
C24: 6'000 uF 500 V. electrochemical (or 1 000 uF 500 V x 6).
R1: 47 K.1 % metallic oxide, 1/2 W.
R2: 500 Ohms, carbon layer, 1 %, 1/2 W.
R3: 500 Ohms, carbon layer, 1 %, 1/2 W.
R4: 30 K. 1 %, carbon layer, 1 %, 1/2 W.
R5: 3 K. 1 %, carbon layer, 1/2 W.
R6: 500 Ohms, 5 W.
R7: 100 K. agglomerated carbon, 5 %, 1/2 W.
R8: 1 K, carbon layer, 5 %, 1 W.
R9: 1 K, carbon layer, 5 %, 1 W.
R10: Pot. 50k lin, carbon layer, 1 W.
S1, S2, E1, E2: Cinch.
D1, D2: Silicium Diodes, 1 000V/15 A.
T1: 2x310V/200mA, 8V/2,3A.
SW1: Switch 220 V, 25 A.
F1: Fuse, 5 A.