A Activity diagram used in UML 6/9 and SysML B Bachman diagram Booch used in software engineering Block diagram Block Definition Diagram BDD used in SysML C Carroll diagram Cartogram Catalytic cycle Chemical equation Curly arrow diagram Category theory diagrams Cause-and-effect diagram Chord diagram Circuit diagram Class diagram from UML 1/9 Collaboration diagram from UML 2.0 Communication diagram from UML 2.0 Commutative diagram Comparison diagram Component diagram from UML 3/9 Composite structure diagram from UML 2.0 Concept map Constellation diagram Context diagram Control flow diagram Contour diagram Cordier diagram Cross functional flowchart D Data model diagram Data flow diagram Data structure diagram Dendrogram Dependency diagram Deployment diagram from UML 9/9 Dot and cross diagram Double bubble map used in education Drakon-chart E Entity-Relationship diagram ERD Event-driven process chain Euler diagram Eye diagram a diagram of a received telecommunications signal Express-G Extended Functional Flow Block Diagram EFFBD F Family tree Feynman diagram Flow chart Flow process chart Flow diagram Fusion diagram Free body diagram G Gantt chart shows the timing of tasks or activities used in project management Grotrian diagram Goodman diagram shows the fatigue data example: for a wind turbine blades H Hasse diagram HIPO diagram I Internal Block Diagram IBD used in SysML IDEF0 IDEF1 entity relations Interaction overview diagram from UML Ishikawa diagram J Jackson diagram K Karnaugh map Kinematic diagram L Ladder diagram Line of balance Link grammar diagram M Martin ERD Message Sequence Chart Mind map used for learning, brainstorming, memory, visual thinking and problem solving Minkowski spacetime diagram Molecular orbital diagram N N2 Nassi Shneiderman diagram or structogram a representation for structured programming Nomogram Network diagram O Object diagram from UML 2/9 Organigram Onion diagram also known as "stacked Venn diagram" P Package diagram from UML 4/9 and SysML Parametric diagram from SysML PERT Petri net shows the structure of a distributed system as a directed bipartite graph with annotations Phylogenetic tree - represents a phylogeny evolutionary relationships among groups of organisms Piping and instrumentation diagram P&ID Phase diagram used to present solid/liquid/gas information Plant Diagram Pressure volume diagram used to analyse engines Pourbaix diagram Process flow diagram or PFD used in chemical engineering Program structure diagram R Radar chart Radial Diagram Requirement Diagram Used in SysML Rich Picture R-diagram Routing diagram S Sankey diagram represents material, energy or cost flows with quantity proportional arrows in a process network. Sentence diagram represents the grammatical structure of a natural language sentence. Sequence diagram from UML 8/9 and SysML SDL/GR diagram Specification and Description Language. SDL is a formal language used in computer science. Smith chart Spider chart Spray diagram SSADM Structured Systems Analysis and Design Methodology used in software engineering Star chart/Celestial sphere State diagram are used for state machines in software engineering from UML 7/9 Swim lane Syntax diagram used in software engineering to represent a context-free grammar Systems Biology Graphical Notation a graphical notation used in diagrams of biochemical and cellular processes studied in Systems biology System context diagram System structure Systematic layout planning T Timing Diagram: Digital Timing Diagram Timing Diagram: UML 2.0 TQM Diagram Treemap U UML diagram Unified Modeling Language used in software engineering Use case diagram from UML 5/9 and SysML V Value Stream Mapping Venn diagram Voronoi diagram W Warnier-Orr Williot diagram Y Yourdon-Coad see Edward Yourdon, used in software engineering
Our goal is to improve your life by helping you build the complex products you use daily. You'll learn how they work, and be able to fix and change them yourself. We design great products you can be pleased to own, and proud you made. Book: Just Enough Electronics to Impress Your Friends and Colleagues! XB 2017 01. Copyright © 2026 Heathkit.
Heathkit is the brand name of kits and other electronic products produced and marketed by the Heath pany.
Heathkit manufactured electronic kits from 1947 until 1992.
This website pays tribute to the 50s and 60s Heathkit® era, when electronic kit building was a pasttime enjoyed by many electronics enthusiasts and long before computers and the Internet became household words.
Heathkit Schematic and Manual Archive This is an archive based on a page that used to be at : .circuitarchive.co.uk heath.htm. It has been reassembled from my copy (saved when the site was live) together with files retrieved from : web.archive.org and other resources.
Pictures schematics and other information on electronic kits like Heathkit EICO Allied Radio and others.
Heathkit has been producing electronic kits for Hi Fi since 1947 and was inducted into the Hi Fi Hall of Fame in February 2024.
The Heathkit trilogy of books celebrates three of the company’s best known product lines: test equipment, hi fi and stereo equipment, and amateur radio gear. The books are written for buyers, sellers, collectors, audiophiles, ham radio operators, and anyone who loved Heathkits.
If you came of age in the 1960s or 1970s and then later became an EE, chances are you’re more than casually acquainted with Heathkit. Many engineers started their budding careers by building one or more kits made by the Heath pany.
Book: Just Enough Electronics to Impress Your Friends and Colleagues! XB 2017 01.
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