K&K Straight Rail Vibe Pickups "Piezo Discs"

Hey everyone!

I've been using the K&K straight rail pickups on my musser pro vibes, and i've been loving them! Recently one of the piezo discs cracked and came off, so I decided to splice my own cable/jack/piezo and make a home replacement. When I was done I glued the disc on (it's the "optimal" spot of the bar) and plugged in, but the replacement disc is MUCH louder than the rest of the bars. My guess is I need a specific size piezo to properly and evenly pick up the sound. I have no idea what kind of discs they use, and the only buying option on their website is to buy the emergency kit (which has a lot of stuff that I don't need, and it's $80.) Does anybody have any information on what kind of discs they use?

Thanks!

Alec

Alec, I have the kit.I can send you a piezo if you want, no charge. keep it electric. alonzo@writeoffrecords.com

Hi Alec,
You need 12 mm piezo discs. You can get these from DigiKey and a few other sources. However, the cheapest source by far is e bay. As a matter of fact, you can even get them there with "flying leads"--already soldered. If you buy them like this, twist the leads around each other to help shield the hot lead with the ground lead and then cover with heat shrink tube. I purchased 50 w/out leads about 4 years ago for only about 10 bucks. Normal purchase thru DigiKey or similar supplier is about $1/ disc. The ones on e bay are probably Chinese. I've found them to work great. Keep in mind that the small trim pots on your KK rails are actually there in part to deal with the fact that even in high quality piezos there are minor differences one to the next. The trim pots help adjust for the differences. This is very much an easy DIY project. You can use the hand-knead nonmetallic epoxy as a potting compound--use a very small amount to put onto the piezo disc to protect the junction where the leads leave the disc; heat shrink tube over the leads; and a 3.5 mm male jack at the end of the flying leads. Easy and much cheaper than buying replacements from KK.

[Edit]: here is an ebay offering for the 12 mm discs. You'll also want a 3.5 mm male phone jack and heat shrink tubing, and some non metallic potting compound, e.g. epoxy. Link: http://www.ebay.com/itm/20PCS-12mm-Piezo-Elements-Sounder-Sensor-Trigger...

Enjoy your project.
Vince

Vince, thanks for a real answer. In all the years I have had the kit, I have never had to replace a pickup. Re glue a few times/never drink and disconnect! thanks again.

just contact me directly if you need help. I love hacking the vibes.

I've noticed that some pickup systems use 3 wires on the piezos. Do you know what the difference or advantage is, if any?