| AG |
Available gain |
| α |
Current gain |
| b |
Base electrode |
| c |
Collector electrode |
Cc |
Collector junction capacitance |
Ce |
Emitter junction capacitance |
| e |
Emitter electrode |
E1 |
Input voltage - 4-terminal network |
Eo |
Output voltage - 4-terminal network |
Ebb |
Battery supply voltage |
Ee |
Emitter bias battery |
Eb |
Base bias battery |
Ec |
Collector bias batter y |
eb |
A-c base signal voltage |
ec |
A·c collector signal voltage |
ee |
A-c emitter signal voltage |
fc |
Cutoff frequency |
| G |
Operational gain |
g11 |
Small signal short circuit input conductance |
g12 |
Small signal short circuit feedback conductance |
g21 |
Small signal short circuit transfer conductance |
g22 |
Small signal short circuit output conductance |
h11 |
Small signal hybrid short circuit Input impedance |
h12 |
Small signal hybrid open circuit voltage feedback ratio |
h21 |
Small signal hybrid short circuit forward transfer current ratio |
h22 |
Small signal hybrid open circuit output admittance |
I1 |
Input current - 4-terminal network |
Ig |
Output current - 4-terminal network |
Ico |
Saturation current - collector current at Zero emitter current |
Ib |
D-c base current |
Io |
D-c collector current |
| Ie |
D-c emitter current |
| Ib |
A-c emitter signal current |
| ib |
A-c base signal current |
| ic |
A-c collector signal current |
| RB |
Base series resistor |
| RC |
Collector series resistor |
| RE |
Emitter series resistor |
| ri |
Input resistance 4-terminal network |
| r0 |
Out put resistance 4-termlnal network |
| r1 |
Image matched input resistance |
| r2 |
Image matched output resistance |
| r11 |
Small signal open circuit input resistance |
| r12 |
Small signal open circuit reverse transfer resistance |
| r21 |
Small signal open circuit forward transfer resistance |
| r22 |
Small signal open circuit output resistance |
| rb |
Transistor equivalent base resistance |
| rc |
Transistor equivalent collector resistance |
| re |
Transistor equivalent emitter resistance |
| rm |
Proportionality resistance constant between emitter signal current and resulting voltage signal produced In collector arm |
| Rg |
Internal resistance of signal generator |
| RL |
Load resistance |
| W |
Base junction thickness |
| VG |
Voltage gain |
| MAG |
Maximum available gain |
| N-Type |
Transistor semiconductor with donor type impurities (electron current carriers) |
| P-Type |
Transistor semiconductor with acceptor type Impurities (hole current carriers) |
Appendix 
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