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Project Tinkertoy 066 - A black and white photo of a machine

Project Tinkertoy 066 - A black and white photo of a machine

Project Tinkertoy unit containing modules with wafers

Patent drawing - Meissner Patent - . Public domain  image

Patent drawing - Meissner Patent - . Public domain image

Deutsch: Meissner Oszillator Patentschrift

Project Tinkertoy 068 - A black and white photo of a machine

Project Tinkertoy 068 - A black and white photo of a machine

Project Tinkertoy unit containing modules with wafers

Radio Hat Circuit - An electronic device circuit with a circuit diagram

Radio Hat Circuit - An electronic device circuit with a circuit diagra...

Radio-Electronics, June 1949, Volume 20, Number 9, From page 32. The two tube radio receiver cost $7.95 and was manufactured by the American Merri-Lei Corporation of Brooklyn, N.Y. The radio was powered by an ... More

Project Tinkertoy 069 - A group of three tubes sitting on top of each other

Project Tinkertoy 069 - A group of three tubes sitting on top of each ...

Examples of Project Tinkertoy modules with wafers

Hook-up of 8TY's station from the April 1916 QST

Hook-up of 8TY's station from the April 1916 QST

Schematic of a receiving set owned by Mr. Roy C. Ehrhardt of Scranton, Pa.

Project Tinkertoy 047 - A black and white photo of a train engine

Project Tinkertoy 047 - A black and white photo of a train engine

The cost of this unit (top), constructed in large numbers by conventional manual techniques employing conventional component parts, was compared with the costs of producing it by the manual techniques of Modula... More

Architectural diagram - ProjectTinkertoy 046, public domain image

Architectural diagram - ProjectTinkertoy 046, public domain image

Conventional resistors, capacitors, and coils are replaced by wafer-mounted tape resistors, titanate capacitors, and miniaturized coils. The wafers are then assembled skyscraper fashion to form the MDE module.

Project Tinkertoy 067 - A black and white photo of a machine

Project Tinkertoy 067 - A black and white photo of a machine

Project Tinkertoy unit containing modules with wafers

QST (1915) (14735564576) - Public domain book illustration

QST (1915) (14735564576) - Public domain book illustration

Identifier: qstamer00amer (find matches) Title: QST Year: 1915 (1910s) Authors: American Radio Relay League Subjects: Radio Radio Publisher: (Newington, Conn., etc., American Radio Relay League) Contributi... More

Project Tinkertoy 065 - A black and white photo of a machine

Project Tinkertoy 065 - A black and white photo of a machine

Project Tinkertoy unit containing modules with wafers

Patent drawing - Additron Tube schematic - . Public domain  image

Patent drawing - Additron Tube schematic - . Public domain image

Schematic showing a 3-bit adder using Additron tubes, as per the patent filing

Project Tinkertoy 070 - An old photo of a tube and a battery

Project Tinkertoy 070 - An old photo of a tube and a battery

Example of Project Tinkertoy modules with wafers (left) with a battery (right) included for scale

Patent drawing - Vackar oscillator triode - . Public domain  image

Patent drawing - Vackar oscillator triode - . Public domain image

Vackar oscillator circuit diagram with vacuum tube US patent 2706249 Fig. 3 Deutsch: Vackar Oszillator Schaltbild mit Elektronenröhre US patent 2706249 Fig. 3

Project Tinkertoy 050 - A black and white photo of three vacuum tubes
Patent drawing - Colpitts Osz Patent Fig2 - . Public domain  image

Patent drawing - Colpitts Osz Patent Fig2 - . Public domain image

Deutsch: Colpitts Oszillator Patentschrift Fig. 2

Roehrenverstaerker Gittervorspannung

Roehrenverstaerker Gittervorspannung

Anschauliche Erklärung zur Entstehung der negativen Gittervorspannung. Understandable Explanation of the origin of Ug1 in tube amplifiers. This is completely my own work and belongs to everybody from NOW on.

Patent drawing - Hartley-US-Pat 1,356,7631 - . Public domain  image