RetroRIAA

Balanced RIAA Preamplifier:


 

Position

Value

Manufacturer

BR101, BR102

5A

Any diode bride 5A or more

 

 

 

C1

410 pF

Silver Mica SSG-1

C2

0.22μF 600V

Hovland Musicap

C3, C4

100+100μF 500V

Black Gate WKZ

C5

0.01μF 400V

Silver Mica SSG-1

C6

3300 pF

Silver Mica SSG-1

C7, C8

0.22μF 400V

0.22μF TFT Relcap + Silver Mica  SSG-1  3600pf

C101, C103

220μF 160V

Black Gate NH

C102, C104

820 μF 200V

Nichicon GK

C105

68μF 350V

Black Gate NH

C106

100+100μF 500V

Black Gate WKZ

C107, C110

100μF 16v

Any

C108, C111

1μF 16v

Any

C109, C112

23000μF 16v

Mallory

 

 

 

F101, F102, F103

1A 250V

Any slow fuse

 

 

 

Ic101, Ic102

LM338T

Any

 

 

 

R1

20K 0,5W

Tantalum

R2

100K 2W

Tantalum

R3

2M 0,5W

Tantalum

R4, R5

120 K 1W

Tantalum

R6

600 Ώ 0,5W

Tantalum

R7

33k 1W

Tantalum

R8, R9, R10, R101, R102

3.3K 1W

Tantalum

R11, R12

1.0 M 0.5W

Tantalum

R13, R103

2.2K 1W

Tantalum

R104, R105, R108, R109

470ohm 1W

Any

R106, R110

120ohm 0,5W

Any

R107, R111

500ohm 1W

Any potentiometer

 

 

 

T1

8920

Sowter, UK

T2

8650

Sowter, UK

T101

263AX

Hammond

T102

272DX

Hammond

T103

185D16

Hammond

 

 

 

VT1, VT3

6922

 

VT2

6188

 

Vt101, Vt102

5AR4

 

 

 

 

Steel Chassis

1441-8

Hammond

Speaker spikes

DSS4

Dayton