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“In this stage, you assemble the Analog/Digital simulation switch and Tektronix type RM561 oscilloscope.”




Materials: Everything in this stage is plastic except for the metal Control Panel Supports.


Simulation Switch Control Panel and Oscilloscope

Before we get started on this stage, I want to add some color and details to some of the parts. The first thing I did was use my Black Sharpie and my Metallic Silver Sharpies, as well as some Tamiya XF-2 Flat White acrylic paint, to jazz up and correct the Analog/Digital Simulator Switch Control Panel bits:

On the real car, this is a Linaire JT-22 Input/Output Tester. Note the little message for Stephen Dane (who designed the Ecto-1):

Courtesy of and AJ Quick – Find more by clicking on this photo!
Step 01

Fit the Control Panel on top of the Control Panel Base:

I get the feeling that the bottom part could have been clear and used to light some of this panel up. Perhaps a future mod idea?

Secure these parts together from below with two (2) EP screws:

Fit the two Control Panel Short Supports to these bottom two mounting points, as shown, and secure each with one (1) KP screw.

Of the two screws we added in the previous step, the one closer to the edge is the ‘bottom’ of this Control Panel. These short supports go at this end:

Fit the two Control Panel Long Supports to these top two mounting points, as shown, and secure each with one (1) KP screw:

Step 02

I added some extra color and details here with Black Sharpie and some Tamiya XF-7 Flat Red acrylic paint. In this photo, I have modded the one on the left and the right is original. I then painted them both the same:

This mod was to better match the original Tektronix Type RM561A Oscilloscope in the real car:

Courtesy of and AJ Quick – Find more by clicking on this photo!

Fit the two Tektronix Type RM561A Oscilloscope Command Panels to the front side of the Oscilloscope Body, aligning the locating pin and holes on each (the Command Panels are identical parts). Then, secure these panels to the body with four (4) GP screws, two on each side:

Fit the two pins on the back of the Oscilloscope Monitor to the center of the Oscilloscope Body, as shown.

The two ‘peaks’ of the wave on the screen image should be at the top:

Secure the Monitor into place from the inside with two (2) EP screws:

Press the two Oscilloscope Handles into the matching holes on either side of the Command Panels, as shown.

These are simply press-fit, but you may want to put a drop of glue on the Handle pins to be sure:

Locate the Oscilloscope Left Side (marked ‘L’ – circled below) and slot it flush into the Oscilloscope Body, as shown:

Locate the Oscilloscope Right Side (marked ‘R’) and slot it flush into the other side of the Oscilloscope Body, as shown:

Finally, fit the Oscilloscope Base to this assembly, aligning the four posts and screw holes.

This does have a specific way to attach. Note these notched tabs of the Oscilloscope Base:

These fit over the pins of the Oscilloscope Handles we have already installed:

When this Oscilloscope Base is correctly installed, it should sit down inside the walls nice and flush all around:

Secure the Base to the Body with four (4) IP screws:

Step 03

Fit the Supports of the Switch Panel assembly onto either side of the Oscilloscope, aligning the holes as shown:

Secure the Control Panel Supports to the Oscilloscope Body with four (4) KP screws.

With this much silver metal to secure, I ‘painted’ these screws with my Metallic Silver Sharpie so they would look better:


This is a cool looking assembly, Ghostbusters or not! It is not perfectly accurate to the real parts, but we all know what it is and where it goes.

Next Up

Stage 54 – BGM-340 Guidance System/Base/Knobs, Oscilloscope Support Struts

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