Thanks majenko, for the hint on 74HCTxxx series IC.
Regarding diodes instead of resistor voltage divider, I rather thought of a kind of pullup resistor and a reverse diode
3.3 V -- 10k ----+
|
Sig (5V) ---|<|--+---- sig (3.3V) -- >
I was not aware that simple carbon-film resistors have remarkable inductance. Are they wound like coils internally?