Analog Oscilloscope Project

By: Kenneth Schepps

Table of Contents:

• Goal

• Block Diagram

• Power, RC, Tube

• Right Side

– Top Board

– Bottom Board– Bottom Board

– Sweep Knob

• Left Side

– Small Board

– Bottom Board

– Volts Knob

Board Names Pending

Goal

An on-going project to backwards engineer the

Simpson Triggered Oscilloscope Model 455T

analog oscilloscope for educational purposes

Right-Top

DC In Power

Right-Bottom

RC

Left-Bottom

Tube

Title

Size Document Number Rev

Date: Sheet of

Block Diagram 1.0

Analog Oscilloscope

A

1 1Monday , March 08, 2010

Sweep KnobLeft-Small

Volts Knob

Face

Kenneth Schepps

Power, RC, & Tube

T1/RC – Left View

T1 – Bottom View

RC – Right View

T1

TRNSFMR PLT30

4

1

3

2

12

10

9

5

11

67

8

13

SW1

SW_T_SPDT

1

32

C1CAP NP

F1

FUSE

AC+

GND

AC-

Tube

Tube

1 2

3

4

5

678

9

10

11

12

PP2 (RT)

(Tube)

(Tube)(Tube)

PP6 (RT)

PP5 (RT)

(Tube)

PP4 (RT)

PP3 (RT)

(Tube)

(Tube)(Tube)(Tube)

(Tube)

(Tube)

(Tube)

(Tube)(Tube)

Face

(Tube)

Power Tube

Title

Size Document Number Rev

Date: Sheet of

Power, RC, Tube 1.0

Analog Oscilloscope

A

1 1Monday , March 08, 2010

TRNSFMR PLT30

RC

(Tube)(Tube)(Tube)

R1R

R2R

R3

R

R4

R

R5

R

R6

R

C2CAP NP

C3CAP NP

C4C

C5C

J1

Short

J2

Short

Kenneth Schepps

Right Pink (RT)

Tube, HP13 (RB) Tube, HP14 (RB) Tube, VP14 (LB) Tube, VP12 (LB) VP13 (LB)

Red/Orange lef t of 3 reds (RT)

Right Side

• Three Parts:

– Bottom Board

– Top Board

– Sweep Knob

Left Side

• Three Parts:

– Bottom Board

– Small Board

– Volt Knob

Revision Notes

• 3/7 – Started presentation, divided project

into 3 location groups (Power, Left, & Right),

and uploaded pictures into presentation

• 3/8 – Created Block Diagram and schematic • 3/8 – Created Block Diagram and schematic

for power, RC, and tube

– Next to do: Create schematics for Right Side circuit

boards