You can find many suppliers of electronic digital components who will sell them in small amounts. Suppliers of new components, or in a few cases “new and some used” components, include Digi-Key (having blue LEDs, prices reasonable), Mouser Electronics (Fast service, $20 minimum, $5 charge under $20, move orders $100 minimum), Water State Electronics (good collection of RF parts, especially air variables and BLACK AND WHITE coils), Radiokit (lots of components), Circuit Specialists Incorporation ( no minimum with check or money order, or else $15, good RF collection), Active Consumer electronics (many stores over the US and Canada, $25 minimum), Maplin Electronics Ltd. (UK), Newark Electronics ($25 least, prices on the larger area but have a great deal of things that are hard to find elsewhere), Arrow Electronics, Inc. (minimum $25, accepts personal order also), MCM Electronics (minimum $20, mostly VCR parts and plenty of useful stuff difficult to find elsewhere), and Fordham Radio Supply (tools for technicians). make electronics second edition
Others include Jameco (computer parts and electronic components), JDR Microdevices (now no minimum order), Johnson Shop Products (new and some used digital components), DC Electronics (good collection of ICs and electronic components), International Elements Corporation (capacitors, diodes, ICs, potentiometers, resistors, sockets; transistors), Kelvin Electronics (minimum 20 dollars, lots of electronic parts and tools), H & R Company (Herbach and Rademan) (minimum $25), David Birkitt (good stocks of new components and tools), N R Bardwell (cheap, good stocks of ICs), Surplus Electronics ( resistors, capacitors, and a few semiconductors),
Every Electronics Corp. (minimum $20, new and surplus electronics), Alltronics (surplus electronics, $12 minimum), American Science and Surplus (formerly JerryCo),
Hosfelt Electronics (surplus electronics), and Marlin P. Jones & Assoc. (surplus electronics).
To get specialty components, JAN Deposits, Crystek Corporation, International Ravenscroft Manufacturing Co., Inc., Affectation Associates, Palomar Engineers, RF PARTS can be approached.
You can also check with wholesale directories to find details about suppliers of electronic components, compare prices and features, and finally make your choice.