Texas Star DX 400 - DX 500
Documentation Project

CBTricks.com

DX 400 and DX 500 PARTS LIST

Capacitors

Ref. No.

Value

NOTES:

C1

15pF

Ceramic Disc

C2

0.022uF to .1uF

Ceramic Disc

C3

1000pF

Ceramic Disc

C4

1000 uF 16v

Electrolytic

C5

150pF

Ceramic Disc

C6

330pF

Ceramic Disc

C7

0.068 uF TO .1uF

Glass, Ceramic Disc or Monolithic

C9

0.068 uF TO .1uF

Glass, Ceramic Disc or Monolithic

C20

120pF  (DX400)

Silver Mica

 

330pF  (DX500)

Silver Mica

C21

0.068uF to .2uF

Glass, Ceramic Disc or Monolithic

C22

0.0015uF (DX400)

Polypropylene

 

0.0012uF  (DX500)

Polypropylene

C23

0.068uF to .2uF

Glass, Ceramic Disc or Monolithic

C24

330pF

Silver Mica

C25

330pF

Silver Mica

C26

0.068 uF TO .1uF

Glass, Ceramic Disc or Monolithic

C27

1200pF  (DX400)

Stacked Mica  (SEMO)

 

1000pF  (DX500)

Stacked Mica  (SEMO)

C28

0.068 uF TO .1uF

Glass, Ceramic Disc or Monolithic

C29

0.01uF

Ceramic Disc or Monolithic

C30

0.068uF to .2uF

Glass, Ceramic Disc or Monolithic

C31

0.0015uF (DX400)

Polypropylene

 

0.0012uF  (DX500)

Polypropylene

C32

0.068uF to .2uF

Glass, Ceramic Disc or Monolithic

C33

330pF

Silver Mica

C34

330pF

Silver Mica

C35

0.068uF TO .1uF

Ceramic Disc or Monolithic

C36

1200pF  (DX400)

Stacked Mica  (SEMO)

 

1000pF  (DX500)

Stacked Mica  (SEMO)

C37

0.068 uF TO .1uF

Ceramic Disc or Monolithic

C38

0.01uF

Ceramic Disc Monolithic

C39

0.068 uF TO .1uF

Ceramic Disc Monolithic

C40

33uF 25v

Electrolytic

C42

0.068 uF  TO .1uF

Glass, Ceramic Disc or Monolithic

C43

10uF 25v

Electrolytic

C44

0.01uF

Ceramic Disc Monolithic

C45

91pF

Silver Mica

Resistors

Ref. No.

Value

NOTES:

R1

470 ohm 1/4W

Carbon

R2

10 ohm 2W (DX400)

Metal Oxide

R4

120 ohm 2W (DX400)

Metal Oxide

 

200 ohm 2W (DX500)

Metal Oxide

R5

75 ohm 4W

Metal Oxide

R6

6 ohm 4W 

Metal Oxide

R8

68K

Carbon

R9

470

Carbon

R14

100 ohm 2W

Metal Oxide

R16

1.8 ohm 1/2W

Carbon

R17

39 ohm 3W

Metal Oxide

R18

10 ohm 1/2W

Carbon

R19

10 ohm 1/2W

Carbon

R20

39 ohm 3W

Metal Oxide

R21

25 ohm 5W

Wire Wound

R23

1.8 ohm 1/2W

Carbon

R24

39 ohm 3W

Metal Oxide

R25

10 ohm 1/2W

Carbon

R26

10 ohm 1/2W

Carbon

R27

39 ohm 3W

Metal Oxide

R28

25 ohm 5W

Wire Wound

R29

100 ohm 2W

Metal Oxide

R30

15K ohm 1/4W (DX400)

Carbon 

 

30K ohm 1/4W (DX500)

Carbon 

R31

1K ohm 1/4W

Carbon

R32

27K ohm 1/4W

Carbon

Diodes

Ref. No.

Value

NOTES:

D1

1N4001

 

D2

1N4148

 

D3

MR750

 

D4

1N4148

 

Toroids

Ref. No.

Value

NOTES:

L3

Toroid Combiner

Bifiliar (5 Turns #22) on 30MHz Ferrite Toroid Core ½" O.D., ¼" I.D. 1/8" x 1/8" Thick.

L4

Toroid Combiner

Bifiliar (5 Turns #22) on 30MHz Ferrite Toroid Core ½" O.D., ¼" I.D. 1/8" x 1/8" Thick.

Transistors

Ref. No.

Value

NOTES:

Q1

2N2907A

 

Q2

2N4125

 

Q4 - Q7

2SC2290

(DX400)

 

2SC2879

(DX500)

Jacks

Ref. No.

Value

NOTES:

J1

SO239

RADIO

J2

SO239

ANT

J3

1/8 Phone

Key

Fuses

Ref. No.

Value

NOTES:

F1

Fuse Holder with 35A Fuse

 

F2

Fuse Holder with 35A Fuse

 

Lamps

Ref. No.

Value

NOTES:

I1 - I4

18v 40ma Lamp

 

I5

#2682  14v 80ma Lamp

 

 

Ref. No.

Value

NOTES:

S1-S4

4 Position Switch Bank

 
 

Button Bezel

 
 

Lens  (POWER)

 
 

Lens  (REC AMP)

 
 

Lens  (SELECT A WATT)

 

 

Lens  (DELAY)

 

 

Ref. No.

Value

NOTES:

T1

Stackpole 5 Turns

(DX400)

 

Stackpole 2 Turns

(DX500)

T2

Stackpole 4 Turns

 

T3

Stackpole 5 Turns

(DX400)

 

Stackpole 2 Turns

(DX500)

T4

Stackpole 4 Turns

 

FB1-FB8

Ferrite Bead

13/64" Dia. x 7/16 long

 

Ref. No.

Value

NOTES:

M1

Meter .5ma FS 480ohms

 
 

Front Panel

 
 

Cover Top

 
 

Chassis

 
 

Heatsink

 

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