I used the K4040 for some years. Resistor R99 burned out. After replacing the resistor (10 Ohm) voltage readings are no longer correct.
Instead I read
6.3 Volt 3.3 Volt
110 v 92 v
335 v 283 v
100 v 59 v
260 v 235 v
12 v is ok and korrect
May it be possible the thre power transformer TR4040 is defective?
And can I still order this transformer?
Looking forward for the reply
Franz