| system | description
|
| ADT | ARC Discharge Tube
|
| AMT | Accelerometer Tube
|
| ATR | anti TR tube
|
| BAR | Barretter
|
| BDM | Beam Deflection Mixer
|
| BDT | Beam Deflection Tube
|
| BOL | Bolo Meter Device
|
| BST | Beam Switching Tube (Trochotron)
|
| BWA | Backward Wave Amplifier
|
| BWC | Backward Wave Converter
|
| BWO | Backward Wave Oscillator (Voltage Tuned Oscillator) (Carnitron)
|
| c | current regulator
|
| CDC | CRT Deflection Coil
|
| CDT`° | character display tube (nixie)
|
| CFT | Crossed Field Tube (Carpitron)
|
| CHR | Chronotron
|
| CNT | counter tube
|
| CPR | Crystal Protector
|
| CRB | cathode ray tube black-white
|
| CRC | cathode ray tube color
|
| CRM | cathode ray tube monochrome monitor
|
| CRO | cathode ray tube oscillograph
|
| CRP | cathode ray tube projecting
|
| CRR | cathode ray tube radar
|
| CRS | cathode ray tube storage
|
| CRT | Cathode Ray Tube
|
| CRX | Cathode Ray Tube special purpose
|
| CRY | Crystal
|
| CTD | Control Diode
|
| CVT° | Convectron
|
| d | diode
|
| DCT | decade counter tube
|
| DCT`° | cold cathode, gas filled, decade counter tube
|
| dd | double diode
|
| ddd | tripple diode
|
| dddt | tripple diode and triode
|
| ddp | double diode and pentode
|
| ddP | double diode and power-pentode
|
| ddq | double diode and tetrode
|
| ddt | double diode and triode
|
| dH | diode and heptode
|
| DLL | Dummy Load Lamp
|
| dp | diode and pentode
|
| dP | diode and power-pentode
|
| dq | diode and tetrode
|
| DRT`° | cold cathode, gas filled, decade register tube
|
| DST | Display Storage Tube
|
| dt | diode and triode
|
| dti | diode and indicator with amplifying triode
|
| dtp | diode, triode and pentode
|
| dtP | diode, triode and power-pentode
|
| DXT | Duplexer Tube
|
| e | enneode
|
| EDU | Educational Tubes
|
| EIP | Evaporation Ion Pump
|
| EXC | Excitron
|
| FET | Field Effect Tube (= Neotron, field effect tube, magnetically beamed triode)
|
| FLT | flash tube
|
| FSS | flying spot scanner
|
| FTO | fixed-tuned oscillator tube
|
| FUS | fuse
|
| FWA | forward wave amplifier (TWT)
|
| GCR | Grid Controlled Rectifier
|
| GDT | Gas Discharge Tube
|
| GFI`° | Gas Filled Indicator
|
| GLT | Gas Laser Tube
|
| GMT | Glow Modulator Tube
|
| GRD | guard ring diode
|
| GST | Gas Switching Tube
|
| H | heptode
|
| h | hexode
|
| i° | indicator, gas filled
|
| ICT | Image Converter Tube
|
| IGN | ignitron
|
| ii | double indicator
|
| IIT | Image Intensifier
|
| IMG | camera tubes
|
| IMT | Image Tube
|
| INJ | Injectron
|
| KLY | klystron
|
| LDR | Light Dependent Resistor
|
| MAG | magnetron
|
| MCM | Mercury coulometer
|
| MET | Mechano-Electronic Transducer
|
| MFS | Microwave Frequency Standard
|
| MOD | Monitor Diode
|
| NCT | Noise Generating Crystal Tube
|
| NEL | Neon Lamp
|
| NET | Neon Tube
|
| NOD | noise diode
|
| NOG | noise generator
|
| NOS | noise source
|
| o | octode
|
| OBH | Orbital Beam Hexode
|
| ORT | Image Orthicon
|
| OSC | Oscillator
|
| p | pentode
|
| P | power pentode or beam tetrode
|
| p~ | transmitting pentode
|
| P~ | transmitting power-pentode >=10W
|
| PDT | Protective Discharge Tube
|
| PEC | PhotoElectric Cell
|
| PHA | Phasitron
|
| PHD | photodiode
|
| PHM | photomultiplier
|
| PHT | phototube
|
| PHT° | phototube, gas filled
|
| pi | pentode and indicator
|
| PLC | Plumbicon color
|
| PLU | Plumbicon
|
| PML | Power Measurement Lamp
|
| pp | double pentode
|
| PP | dual power-pentode
|
| pP | pentode and power-pentode
|
| PP~ | dual transmitting power-pentode >=10W
|
| PPC | Passive Protection Cell
|
| PPT | passive protection tube
|
| PS | Power Supply
|
| PSO | Pulsed-type Stabilotron Oscillator
|
| PTR | Pre-TR tube
|
| Q | power-tetrode
|
| q | tetrode
|
| q`° | cold cathode, gas filled, tetrode
|
| Q~ | transmitting power-tetrode >=10W
|
| q~ | transmitting tetrode
|
| q° | tetrode, gas filled
|
| qq | double tetrode
|
| qq~ | double transmitting tetrode
|
| QQ~ | dual transmitting power-tetrode >=10W
|
| r | rectifier diode
|
| R | rectifier diode >=1kV
|
| r`° | cold cathode, gas filled rectifier
|
| r° | rectifier <1kV, gas filled
|
| R° | rectifier >=1kV, gas filled
|
| RCT | radiation counter tube
|
| RCY | Reference Cavity
|
| REL | relay
|
| RGC | rare gas cartridge
|
| rP | rectifier and power-pentode
|
| rr | double rectifier
|
| rr`° | double, cold cathode, gas filled, rectifier
|
| rr° | double gas filled rectifier
|
| rrr° | tripple gas filled, rectifier
|
| RST | Recording Storage Tube
|
| RYV | relay valve
|
| SAD | saturated diode
|
| SAR | Surge Arrester
|
| SBT | Sheet Beam Tube
|
| sem | semiconductor
|
| SEN | Sendytron
|
| SET | secondary emission tube
|
| SGM | spark gap modulator tube
|
| SGT | Spark Gap Tube
|
| SKT | Socket
|
| SLS | Special Light Source
|
| SMT | Spectrometer Tube
|
| STR | Strobotron
|
| SWD | switching diode
|
| T | power-triode
|
| t | triode
|
| t`° | cold cathode, gas filled, triode
|
| T~ | transmitting power-triode >=10W
|
| t~ | transmitting triode
|
| t° | triode, gas filled
|
| T° | triode, gas filled (switching)
|
| TAC | Tacitron
|
| TBC | TB-Cell
|
| TBD | To Be Defined
|
| TBT | Touch Button Tube
|
| TGT | Trigatron
|
| tH | triode hepode
|
| th | triode hexode
|
| THC | Thermocouple
|
| THY | Thyratron
|
| ti | indicator with amlifier triode
|
| tii | double sensitivity indicator with amplifier triode
|
| titi | double indicator with amlifier triodes
|
| tp | triode and pentode
|
| tP | triode and power-penthode
|
| tPP | triode and double power-pentode
|
| tq | triode and tetrode
|
| TRC | Tunable Reference Cavity
|
| TRI`° | cold cathode, gas filled, trigger tube (small thyratron)
|
| TRI° | gas filled, trigger tube (small thyratron)
|
| TRT | Transmit-Receive Tube (TR cell)
|
| TT | double power triode
|
| tt | double triode
|
| tT | triode and power-triode
|
| TT~ | double transmitting power tetrode >=10W
|
| tt~ | double transmitting triode
|
| ttp | double triode and pentode
|
| ttt | tripple triode
|
| TVG | Triggered Vacuum Gap
|
| TWT | travelling wave tube
|
| v`° | cold cathode, gas filled voltage regulator
|
| VAC | Vacuum Capacitor
|
| VGH | Vacuum Gauge Head
|
| VGR | Vacuum Gauge, Resistance
|
| VGT | Vacuum Gauge Tube
|
| VIC | Vidicon
|
| VMC | Vibrating Capacitor
|
| VMO | Velocity Modulated Oscillator (Klystron)
|
| VMT | V. M. Tube
|
| VSW | Vacuum Switch
|
| XRT | X-ray Tube
|
