Voltage vibrator

The semiconductor 3pins regulator 7812 produced 11,85V with stability in 13,75V circuitry. So stable voltage must be supplied in fuel gauge circuitry on VW 1302 Super Beetle, now drifting 2mm on stylus tip continuously controlled by primitive mechanical vibrator equipped bi-metal and heater construction 40 years ago.

The nowadays semiconductor and some capacitors has smaller balk enough to be set in ancient voltage regulator case with pretending old parts but inside existing semiconductor with good performance to drive the primitive fuel gauge.

Additional application of rubber sheet on fire wall of my Beetle eliminated irritation noise thoroughly, but another problem occurred, the gear noise from trans-axle is heard clearly instead.

The fact that the elimination of engine noise brought up new noise which was masked by engine noise passing through the fire wall.

The floor must be covered fully in addition to shut out the trans-axle noise,as a countermeasure.

Destruction of maker fixed NVH balance is apparent on earth.

We call this kind phenomena,"Mogura tataki", meaning hitting head of a mole one after another unlimitedly.