Tube Loadline Simulator (v.1.0 20140909)

Select tube from the list

12BH7-A 2A3 300B 45 5670 5687 6BK7 6GK5 6K5-GT 6N13S 6N16B 6N1P 6N30P-DR 6N6P 6S33S 6S33S (one cathode) 6S3P-EW 6S45P-E 6S4S 6SN7GT 6Ż9P (triode mode) 845 E180CC E182CC E92CC EC86 EC91 ECC40 ECC81 ECC82 ECC83 ECC85 ECC88 ECC91 ECC99 EL34 (triode mode)

Parameters at operaing point

Ua =

[V]

Ia =

[mA]

Ug =

[V]

Ri =

Ra =

[KΩ]

S =

[mA/V]

µ

[V/V]

Harmonic distortion for Uinp =

h2 =

[%]

h3 =

[%]

h4 =

[%]

htot =

[%]

Single Stage Grounded Cathode Amplifier Parameters

Rk =

Prk =

G(rk) =

[V/V]

G(rk=0) =

[V/V]

Symbol	Description
Ua	Anode voltage at operating point.
Ia	Anode current at operating point.
Ug	Bias voltage (grid voltage) at operating point.
Ri	Plate (internal) resistance at operating point.
Ra	Plate load resistance.
S	Transconductance calculated at operating point.
Ia	Anode current at operating point.
µ	Amplification factor of a tube at operating point.
Rk	Cathode resistor.
Prk	Power dissipation of cathode resistor.
G(rk)	Gain of a single stage amplifier with cathode resistor.
G(rk=0)	Gain of a single stage amplifier without or bypassed cathode resistor.

Triode Koren's model optimizer (Trial version)

MU		Point Curve Ia (mA) Is (mA) Vg (V) Va (V) Vs (V) Vf (V) 1 1 1.65 0 0.0 20.00 500.00 6.30 2 1 3.50 0 0.0 40.00 500.00 6.30 3 1 5.75 0 0.0 60.00 500.00 6.30 4 1 8.30 0 0.0 80.00 500.00 6.30 5 1 10.95 0 0.0 100.00 500.00 6.30 6 1 13.65 0 0.0 120.00 500.00 6.30 7 1 16.75 0 0.0 140.00 500.00 6.30 8 1 19.55 0 0.0 160.00 500.00 6.30 1 2 0.70 0 -2.0 40.00 500.00 6.30 2 2 1.65 0 -2.0 60.00 500.00 6.30 3 2 3.20 0 -2.0 80.00 500.00 6.30 4 2 5.35 0 -2.0 100.00 500.00 6.30 5 2 7.90 0 -2.0 120.00 500.00 6.30 6 2 10.50 0 -2.0 140.00 500.00 6.30 7 2 13.15 0 -2.0 160.00 500.00 6.30 8 2 16.00 0 -2.0 180.00 500.00 6.30 9 2 19.00 0 -2.0 200.00 500.00 6.30 1 3 0.70 0 -4.0 80.00 500.00 6.30 2 3 1.70 0 -4.0 100.00 500.00 6.30 3 3 3.25 0 -4.0 120.00 500.00 6.30 4 3 5.25 0 -4.0 140.00 500.00 6.30 5 3 7.55 0 -4.0 160.00 500.00 6.30 6 3 10.15 0 -4.0 180.00 500.00 6.30 7 3 13.00 0 -4.0 200.00 500.00 6.30 8 3 15.90 0 -4.0 220.00 500.00 6.30 9 3 19.05 0 -4.0 240.00 500.00 6.30 1 4 0.85 0 -6.0 120.00 500.00 6.30 2 4 1.85 0 -6.0 140.00 500.00 6.30 3 4 3.40 0 -6.0 160.00 500.00 6.30 4 4 5.40 0 -6.0 180.00 500.00 6.30 5 4 7.65 0 -6.0 200.00 500.00 6.30 6 4 10.20 0 -6.0 220.00 500.00 6.30 7 4 12.85 0 -6.0 240.00 500.00 6.30 8 4 15.80 0 -6.0 260.00 500.00 6.30 1 5 1.00 0 -8.0 160.00 500.00 6.30 2 5 2.05 0 -8.0 180.00 500.00 6.30 3 5 3.60 0 -8.0 200.00 500.00 6.30 4 5 5.50 0 -8.0 220.00 500.00 6.30 5 5 7.85 0 -8.0 240.00 500.00 6.30 6 5 10.20 0 -8.0 260.00 500.00 6.30 7 5 12.95 0 -8.0 280.00 500.00 6.30 8 5 15.70 0 -8.0 300.00 500.00 6.30 1 6 1.05 0 -10.0 200.00 500.00 6.30 2 6 2.15 0 -10.0 220.00 500.00 6.30 3 6 3.65 0 -10.0 240.00 500.00 6.30 4 6 5.65 0 -10.0 260.00 500.00 6.30 5 6 7.90 0 -10.0 280.00 500.00 6.30 6 6 10.00 0 -10.0 300.00 500.00 6.30 7 6 12.50 0 -10.0 320.00 500.00 6.30 1 7 0.55 0 -12.0 220.00 500.00 6.30 2 7 1.15 0 -12.0 240.00 500.00 6.30 3 7 2.30 0 -12.0 260.00 500.00 6.30 4 7 3.78 0 -12.0 280.00 500.00 6.30 5 7 5.60 0 -12.0 300.00 500.00 6.30 6 7 7.65 0 -12.0 320.00 500.00 6.30 7 7 9.90 0 -12.0 340.00 500.00 6.30 8 7 12.15 0 -12.0 360.00 500.00 6.30 1 8 0.62 0 -14.0 260.00 500.00 6.30 2 8 1.30 0 -14.0 280.00 500.00 6.30 3 8 2.45 0 -14.0 300.00 500.00 6.30 4 8 3.95 0 -14.0 320.00 500.00 6.30 5 8 5.80 0 -14.0 340.00 500.00 6.30 6 8 7.60 0 -14.0 360.00 500.00 6.30 7 8 9.95 0 -14.0 380.00 500.00 6.30 1 9 0.70 0 -16.0 300.00 500.00 6.30 2 9 1.48 0 -16.0 320.00 500.00 6.30 3 9 2.60 0 -16.0 340.00 500.00 6.30 4 9 4.10 0 -16.0 360.00 500.00 6.30 5 9 5.90 0 -16.0 380.00 500.00 6.30 6 9 7.85 0 -16.0 400.00 500.00 6.30 1 10 0.77 0 -18.0 340.00 500.00 6.30 2 10 1.55 0 -18.0 360.00 500.00 6.30 3 10 2.62 0 -18.0 380.00 500.00 6.30 4 10 4.00 0 -18.0 400.00 500.00 6.30 5 10 5.87 0 -18.0 420.00 500.00 6.30
EX
KG1
KP
KVB
Umax
Imax
Ugmin
Ugmax
Padm
Temp
Cost

Import data Optimize Export to simulator Spice model

Paste the data into a text box. Optimizer accepts data in a format utilized by "uTracer" tube tester. Sample data is already entered into a text box. You can use the data from the tester or read them from the anode characteristics published by manufactures. Optimizer uses the simulated annealing algorithm. When you press the [Import data] button, data are loaded and pre-generated model of the tube is created. It is a good practice to press the [Import] button several times to find the best starting point before optimization. To determine the parameters of the model, successively press the [Optimize] button and watch the value of the cost (error) and temperature. Repeatedly pressing the [Optimize] button you reduce the temperature and cost. When the temperature decreases to 1.0 or less, further optimization does not increase the accuracy of the model. The defined model can be sent to the "Tube loadline Simulator" and / or you can generate its description in the Spice format. Have fun experimenting.

©2014 Grzegorz Makarewicz www.trioda.com