Variable inductor coil
 

Hi,

I bought a ZipZaps Se (DB5 model) recently. I wanted to do the MosFet mod so I started to remove black paint on the PCB. Saying to myself "Hey, it looks better without the paint, why wouldn't I remove it all !"

Doing so, I accidently cut the wire of the variable inductor coil and screw up my car. I try to resolder the wire adn it actually worked for a while. Then my car took a hard hit and poof, it was gone again. No way to repaire it this time (my soldering job was kidda messy and melted a bit of the coil :o(

I thought I could replace it with a coil from a bit clone that I have running on 27 mHz, so I started unsolder the damage coil and bang, I accidently desolder and broke the pin of the diode just near.

Now I have 2 problems. I figured out how to replace the diode, but I'm not sure if I'm correct. I did opened the transmitter and found that there a circuit similar to the one I screw (a coil with a diode nearby). Since the transmitter shematics are available, I found that the part is from Philips (part #BB149A). For the coil, when looking to the transmitter's part list, it says "Coil 20T". I searched the web and did not find any reference for that piece.

I have 3 questions :
1- Am I right to think that the transmitter circuit and the receiver circuit (in the car) use the same components ?
2- Is it safe to take the coil from another car ?
3- Does anyone know the reference for a replacement variable inductor coil for the ZipZaps SE.

Thanks

A pic of the transmitter

part number
 

Hey,

I finally found the part number by myself... I'm posting it just in case someone else needs it.

Variable coil
Compagny: Toko
# 294SN-T1015Z
description: 5mm TYPE 5K, 1µH±6% Range 30-150 MHz

I guess it will work for 27 MHz.

Sorry to hear about all the problems, but good to hear you worked it all out. And thanks for posting the follow up part number. May come in handy some day.