diff --git a/Hardware_developement/4-HV/Trafos/trafo_4_layers.jpg b/Hardware_developement/4-HV/Trafos/trafo_4_layers.jpg
new file mode 100644
index 0000000..335e644
Binary files /dev/null and b/Hardware_developement/4-HV/Trafos/trafo_4_layers.jpg differ
diff --git a/Hardware_developement/4-HV/Trafos/trafo_5.jpg b/Hardware_developement/4-HV/Trafos/trafo_5.jpg
new file mode 100644
index 0000000..36a1de7
Binary files /dev/null and b/Hardware_developement/4-HV/Trafos/trafo_5.jpg differ
diff --git a/Hardware_developement/4-HV/Trafos/trafo_6.jpg b/Hardware_developement/4-HV/Trafos/trafo_6.jpg
new file mode 100644
index 0000000..4507d0e
Binary files /dev/null and b/Hardware_developement/4-HV/Trafos/trafo_6.jpg differ
diff --git a/Hardware_developement/4-HV/Trafos/trafo_7.jpg b/Hardware_developement/4-HV/Trafos/trafo_7.jpg
new file mode 100644
index 0000000..f6a3a6c
Binary files /dev/null and b/Hardware_developement/4-HV/Trafos/trafo_7.jpg differ
diff --git a/Hardware_developement/4-HV/Trafos/trafo_8.jpg b/Hardware_developement/4-HV/Trafos/trafo_8.jpg
new file mode 100644
index 0000000..ffe0a33
Binary files /dev/null and b/Hardware_developement/4-HV/Trafos/trafo_8.jpg differ