Component list:

resistance

Serial number

components

quantity

note

1

0Ω

2

Black

2

4.7Ω

2

Yellow violet black silver brown

3

33Ω

2

orange orange black coal brown

4

33Ω

2

orange orange black black brown

5

470Ω

2

yellow purplish black black brown

6

1K

1

brown black black brown brown

7

6.8K

2

blue dark black brown brown

8

12K

2

Reddish red black red reddish

9

470K

4

yellow purplish black orange brown

10

511 SMD resistor

1

has welded on the board

Diodes

11

IN4007

8

12

LED (Long)

1

Installed in P1 power port

13

LED (short)

1

Install the buttom of valve seat

transistor

14

2N5551

2

15

2N5401

2

regulators

16

L7805 + radiator

1

supply power for filament/work high temperature

capacitance

17

104

2

0.1UF/CBB

18

474

2

0.47UFWIMA(USED,good performance)

19

105K250

2

1UF output coupling capacitance

20

330UF/50V

9

21

2200UF/25V

1

Terminals

22

5.08/2P Blue

4

23

7.62/2P Green

1

Tube

24

6N3 Tube

1

tube Seat

25

potentiometer

26

100K potentiometer

1

PCB

27

Others

28

specification

1 Every time before starting to preheating approximately 1 minutes, can work normally

2 Vacuum tube\'s filament uses the cocurrent voltage-stabilized source power supply, when the work the radiator has the very high temperature is the normal phenomenon. 

3 Transformer specification:  12V 15W

4 On the board has not labelled the part value C1-C8=50V/220UF*8