I am trying to fix my electric bug zapper and with the aid of my limited knowledge in electronics, I figured out the circuit is about 3V supply from the battery which got stepped up by the transformer and gives out a current and that's all.

There are two components I need help with : (see pics)

that TPD1007AS I could not find the datasheet for it or pinouts.

for the big fat box, I don't even know the component name to search, but it looks like a voltage regulator.

thanks

 

Hello,

I have enhanced the photos a little bit, so others can aslo decypher the text.

Parts1:

Parts2:

Parts3:

On the parts3 photo I see a capacitor of 0.33 uF.

Beware of the high voltage a bug zapper can make.
We do not like the circuits here.
The TPD chip is probably made special for the producer of the big zapper and will not be found on the market.

Bertus

 

The best that I can tell the TPD1007AS is made by toshiba if that helps any...

 

Also, these are about $5 at Harbor Freight.. You will probably pay as much for the cap plus shipping.

 

'Big fat box' is a capacitor.

TPD1007 is probably a transistor used for oscillation.

The whole circuit is a simple oscillator using the transformer for feedback and step-up.