Vis Databook Reference
Resistors
Delta - Y Transformation CalculatorWheatstone Bridge Calculator
Standard Resistor Values
Resistor Colour Code
Resistors in Parallel
Resistors in Series
Ohm's Law
Diodes
1N41481N4001 - 1N4007
Capacitors
Capacitor ReferenceVoltage Regulators
5 V Voltage Regulator: 7805 Reference Guide3.3 V Voltage Regulators
TS2950CT-3.3 Datasheet
TS2950CT-5.0 Datasheet
AMS1117 Datasheet
STK Range Multi-Voltage Regulator Pinouts
Logic Chips
CMOS and TTL Output Drive Current74LS Logic Chips
CPU Microcontrollers Processors
CPU ProcessorsThanks for the Memories!
uPD2114LC / 21144116 Dynamic RAM Datasheet
TMS2532 / TMS2732 Compatible ROM Chip
4116B RAM
Circuit Symbols - IEEE
Circuit Symbol ReferenceTransistors
IRFZ44NBC549C Transistor
BC547 Transistor
2N3904
2N3055 Equivalent
Fake 2N3055
Mounting Kits
Amplifier Chips
STK465STK463
STK4152II
TDA2030A
TDA7052
Valves/Tubes
Valves - Number SeriesValve Data
Valve Circuits
Databooks
Crystals
Standard Quartz Crystal Values HC-49/UCrystal Radio Components
Crystal EarpieceCrystal Radio Diode
Tuning Capacitor
Ferrite Rod Colour Code
SI Units of Prefix
pico nano micro milli kilo mega giga teraSockets
3.5mm Mono Audio Jack Socket3F07 Audio Jack Socket
USB Socket Pinout
DIP IC Sockets
Plugs
4 Pole Jack PlugTwo Pin DIN Plug
Opto / Display
LED Resistor CalculatorWinstar WS0010
SSD1306 Datasheet
UG-2864HSWEG01 Datasheet
Switches
Tactile Momentary Switch SPSTTransformers
LT700Mullard
Vintage DiodesVintage Transistors
Misc
Solder for Electronics and SchoolsThermal Paste
PCB Prototype Matrix Board 50 mm × 70 mm
Heatsink Voltage Regulator 7805
Battery Reference