| Ri(kΩ) from datasheet | |
| µ from datasheet | |
| Cag(pF) from datasheet | |
| Cs(pF) | |
| HT(V) | |
| Ra(kΩ) | |
| Ea1(knee)(V) | |
| I(mA) | |
| -Eg1/Ek1(V) | |
| gm1(mA/V)Calculator | |
| Rk1(Ω) | |
| ERa2(V) | |
| Eak2(V) Anode to Cathode | |
| Ea2(V) Anode to GND | |
| -Eg2 BIAS(V) from datasheet | |
| Vg2(V) |
| R1 (kΩ) | |
| R2 (kΩ) | |
| Rg2(kΩ) for Cg2 | |
| Cutoff for Cg2(Hz) | |
| Cg2(nF) = 1/(2*π*f*R) | |
| rk(kΩ) for Ck1 = (Rk+ra1)/(µ+1) | |
| Rk1'(kΩ) for Ck1 = 1/(1/Rk+1/rk) | |
| Cutoff for CK1(Hz) | |
| Ck1(uF) = 1/(2*π*f*Rk) | |
| Zo(kΩ) = ra (cascode) // Ra2 | |
| A = 1/((1/(gm1*Ra2))+((ra2+Ra2)/Ra2)*(1/(µ1*(µ2+1)))) | |
| A = gm1*Ra2 | |
| ra1(kΩ) = µ/gm | |
| ra2(kΩ) | |
| ra(kΩ) Cascode = ra1*(µ2+1) | |
| Ra1(kΩ) = (ra1+ra2)/(µ+1) | |
| A1 = µ*Ra1/(Ra1+ra1) | |
| Cmiller(pF) = Cag*(A1+1) | |
| Ct(pF) = Cm+Cs | |
| A2 = A/A1 | |
| Zo'(kΩ) = Zo // ra1 | |
| Fc(KHz) = 1/(2*π*Zo'*Ct) |
Gautau 2010-2-23 00:21
http://bbs.hifidiy.net/thread-330841-1-1.html
http://www.freewebs.com/valvewizard/cascode.html lost
https://web.archive.org/web/20100606080910/http://www.freewebs.com/valvewizard/cascode.html
