'Other' Constructional and Allied Systems Info & Downloads

Select System Type      Select Country       (816 systems found)

Tuba Construction Sets

Tuba is a constructional system using tubes and small plates. It was made in Germany in around 1933 to 1935.

Manufacturer / Distributor

Die Tuba Spielwaren GmbH, Berlin, Germany
(Tuba Toy Co., London for the UK)

Info from the Metal Constructional Systems Database for TUBA

System Type
Mainly Rods/Tubes
1933 (see comment *1) to known in 1935
Steel / Wood
Boss Type
no boss
Boss Thread
Diametrical Pitch of Gears
No. of Parts in System
Hole Pitch (Spacing) (mm)
Diameter of holes in Strips(mm)
5.8 (see comment *2)
Diameter of the Bore in Bosses(mm)
Diameter of Axle Rods(mm)
Types of Nuts and Bolts
Nuts: --
Bolts: --
Material/Finish of Nuts and Bolts
--  --
Size of the Nuts across Flats (mm)
Bolt diameter (mm)

5.5mm Tubes joined with fold over Clips, Flex Plates, wood Pulleys held on Tubes by cone Clips. Coloured parts reported but probably not likely. Sold in United Kingdom '34-5. *1 Patent date. *2 In Flex Plates, no Strips.

The MCS document for this system is shown below. It can also be downloaded to your computer if desired here

NOTE : If the MCS document does not appear in the window below, then refresh the page.

The report can be zoomed into, made full screen or downloaded as a pdf document by using the controls provided

Below there are various manuals/leafets which can be downloaded by clicking on the appropriate image.

The Tuba manual
(Added 18/10/2018)

The Tuba UK patent.
(Added 10/12/2018)

The Tuba USA patent.
(Added 10/12/2018)

Various photos of the Tuba construction system.
(Added 18/10/2018)