diff --git a/tcl/calcurves/dt-470std.std b/tcl/calcurves/dt-470std.std
new file mode 100644
index 0000000..37be26e
--- /dev/null
+++ b/tcl/calcurves/dt-470std.std
@@ -0,0 +1,5 @@
+# just the numbers of standard curves for the different models
+set nr(340) 1
+set nr(336) 1
+set nr(335) 1
+
diff --git a/tcl/calcurves/x88950.dat b/tcl/calcurves/x88950.dat
new file mode 100644
index 0000000..a6e4b1d
--- /dev/null
+++ b/tcl/calcurves/x88950.dat
@@ -0,0 +1,164 @@
+
+# Curve 0 of 1, 159 points
+# Curve title: "'X88950.340' u (10**$3):(10**$2)"
+# x y type
+ 1  1  u
+ inf  3.15831e+63  u
+ inf  3.16732e+61  u
+ inf  2.5147e+59  u
+ inf  2.51044e+57  u
+ inf  2.51206e+55  u
+ inf  3.97566e+53  u
+
+ inf  9.99999e+49  u
+
+ 330.05  74.9376  i
+ 324.997  76.0852  i
+ 318.999  77.5104  i
+ 313.502  78.8733  i
+ 307.999  80.2953  i
+ 302.503  81.7749  i
+ 297.002  83.3182  i
+ 291.501  84.9278  i
+ 286.003  86.6064  i
+ 280.498  88.3588  i
+ 274.998  90.1862  i
+ 269.501  92.0958  i
+ 263.998  94.0914  i
+ 258.5  96.1812  i
+ 253  98.3649  i
+ 247.999  100.443  i
+ 243.002  102.612  i
+ 238.002  104.877  i
+ 233.002  107.246  i
+ 227.997  109.726  i
+ 222.998  112.323  i
+ 218.002  115.046  i
+ 213  117.904  i
+ 207.998  120.907  i
+ 203.002  124.065  i
+ 198.002  127.388  i
+ 193.001  130.891  i
+ 188.001  134.589  i
+ 183  138.491  i
+ 178.501  142.2  i
+ 174  146.1  i
+ 169.5  150.21  i
+ 164.999  154.55  i
+ 160.502  159.129  i
+ 155.998  163.976  i
+ 151.499  169.106  i
+ 147.001  174.55  i
+ 142.498  180.331  i
+ 138  186.483  i
+ 133.999  192.291  i
+ 129.999  198.449  i
+ 126  204.984  i
+ 122  211.934  i
+ 117.999  219.346  i
+ 113.999  227.258  i
+ 109.999  235.722  i
+ 106.001  244.805  i
+ 102.499  253.32  i
+ 100  259.759  i
+ 97.499  266.502  i
+ 94.9992  273.596  i
+ 92.4996  281.048  i
+ 89.9995  288.902  i
+ 87.5004  297.187  i
+ 85.0002  305.943  i
+ 82.4992  315.217  i
+ 80  325.042  i
+ 77.4997  335.467  i
+ 75.5005  344.302  i
+ 73.5005  353.582  i
+ 71.5007  363.371  i
+ 69.4992  373.697  i
+ 67.4994  384.609  i
+ 65.4998  396.169  i
+ 63.4995  408.432  i
+ 61.5007  421.454  i
+ 59.4005  436.034  i
+ 57.3997  450.858  i
+ 55.4  466.724  i
+ 53.5994  481.981  i
+ 51.8  498.23  i
+ 50  515.597  i
+ 48.2003  534.183  i
+ 46.4002  554.153  i
+ 44.5995  575.639  i
+ 43.0002  596.184  i
+ 41.4  618.201  i
+ 39.7  643.413  i
+ 38.0996  669.083  i
+ 36.4998  696.883  i
+ 35.0002  725.087  i
+ 33.4996  755.649  i
+ 32  788.878  i
+ 30.5999  822.678  i
+ 29.1998  859.469  i
+ 27.7997  899.725  i
+ 26.5003  940.719  i
+ 25.2  985.644  i
+ 23.9999  1031.24  i
+ 22.7997  1081.36  i
+ 21.5998  1136.76  i
+ 20.4998  1193.14  i
+ 19.7002  1238.08  i
+ 19.0498  1277.17  i
+ 18.4001  1318.99  i
+ 17.7501  1363.86  i
+ 17.1002  1412.11  i
+ 16.4999  1460.09  i
+ 15.9001  1511.75  i
+ 15.2999  1567.51  i
+ 14.7499  1622.82  i
+ 14.2001  1682.56  i
+ 13.6499  1747.43  i
+ 13.1  1818.07  i
+ 12.6  1888.12  i
+ 12.1001  1964.4  i
+ 11.6001  2047.91  i
+ 11.1499  2130.3  i
+ 10.6999  2220.34  i
+ 10.2499  2319.42  i
+ 9.80009  2429.01  i
+ 9.40005  2536.82  i
+ 8.99995  2655.77  i
+ 8.60003  2787.98  i
+ 8.19993  2935.82  i
+ 7.79992  3102.42  i
+ 7.45006  3266.86  i
+ 7.10003  3451.44  i
+ 6.74994  3661  i
+ 6.4  3900.59  i
+ 6.05006  4177.34  i
+ 5.73997  4461.18  i
+ 5.44001  4778.48  i
+ 5.13996  5148.14  i
+ 4.86004  5552.9  i
+ 4.58005  6029.48  i
+ 4.31996  6556.02  i
+ 4.06004  7184.23  i
+ 3.86002  7760.51  i
+ 3.69003  8324.73  i
+ 3.51998  8975.94  i
+ 3.36001  9687.24  i
+ 3.2  10515.3  i
+ 3.03997  11491.1  i
+ 2.89001  12576.5  i
+ 2.74  13870.4  i
+ 2.59998  15326  i
+ 2.46003  17088  i
+ 2.33002  19091.9  i
+ 2.19999  21555.6  i
+ 2.07  24643.9  i
+ 1.94998  28244.2  i
+ 1.83  32811.8  i
+ 1.71002  38752.5  i
+ 1.6  45949.4  i
+ 1.5  54572  i
+ 1.41  64915.7  i
+ 1.40001  66385  i
+ 1.20138  105709  i
+