Read Phylira 2.5 schematics text version

Phylira 2.5

OTL amplifier for direct ESL drive

signal section - last update 07/25/02 (c) 2000 - 2002 Remco Stoutjesdijk - UltrAnalog

10 mA

V2 D3A

4.1 mA

V4 845 R10 10k R12 100 R11 C1 33k R2 6k8 100n Jensen BNC1

8.6 mA

C2 20n PIO R8 100k 2W R21 22 R5 22 L1 4H Unitran

C5 R16 10k 10W R15 GS R13 22k 10W C6 2µF PIO V3 AV20B-SL Tr1 Sowter 8424 R18 10k 10W R19 10k 10W R17 10k 10W

5.5 mA

R14 GS V1 UX226

Martin Logan SL3 4 kV

R7 100k

R3 33k

10uF MKP P1 100

R9 100k 2W

L2 4H Unitran

R22 22

R23 22 845 V5

R1 1k8

C3 100µ Rubycon C4 100µ BG R4 560

Notes: - all resistors 1/4 Watt Allen-Bradley Carbon Composite unless noted otherwise - 845 on AC filaments, AV20B and UX226 on regulated DC (see PSU) - C2 (20 nF) creates highpass @ 250 Hz with R3 (33k), raise C3 to 470 nF for full-range - gridstoppers R14 and R15 (~1 kOhm) mounted as close to tube socket as possible

R6 47

R20 47k

+375

+450 -1500

T 3 Bartolucci custom wound

F1 230VAC 2AT S1 230V 480V V1 5R4 230VAC 480V C1 4u PIO L4 10H 200 mA C2 8u MKP R1 560 5W C3 47u MKP R2

PSU chassis

Signal chassis

450V

30 mA

R11 560 5W C4 47u MKP C10 15u MKV R3 3k9 5W C6 8u MKP R4

375V

560 5W 3k9 5W C7 8u MKP

14 mA

450V

5V / 2A

150 sec. HVDR

R12 560 5W C15 SR1 LM317 TO-3 (2x) 15u MKV f1 UX226 R8 R7 200 1k R5

30 mA

R6

375V

3k9 5W C8 8u MKP 3k9 5W C9 8u MKP

14 mA

D1

in

S15SC4M1 5V / 2A C11 C12 15000µ 1000µ

out adj

TO-3 LM317 pinout

f2 UX226 D2 78S05 (2x) f1 AV20B S30SC4M1 8V / 2A C13 15000µ f2 AV20B SR2

OUT ADJ IN

TO-220 78S05 pinout

in

gnd

out

f1 845 10V / 4A

f2 845 f1 845 10V / 4A

Phylira 2.5

Prestage and filament power supply Last updated: 07/25/02 (c) 2000 - 2002 Remco Stoutjesdijk - UltrAnalog

f2 845

L1

L2 10H 200 mA R1 47k / 10W

450 / 2500 sec. HVDR

F1 230 S1 2AT

D4

D2

8H 300 mA

Tr1

230V

1752V

DCG4/1000G D3

DCG4/1000G D1

C1 5u / 3kV

C2 5u / 3kV

C3 40u / 2.5kV

R2 47k / 10W

230

R3 47k / 10W DCG4/1000G DCG4/1000G -1500V

F2

Phylira 2.5

230

S1

f1 2AT 230V 2.5V / 5A

Power stage power supply Last updated: 07/26/02 (c) 2000 - 2002 Remco Stoutjesdijk - UltrAnalog

DCG4/1000G

f2 f1

230

2.5V / 5A

DCG4/1000G

f2 f1

2.5V / 5A

DCG4/1000G

f2 f1

2.5V / 5A

DCG4/1000G

f2

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Phylira 2.5 schematics

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