or Connect
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Alps blue velvet pinout?
New Posts  All Forums:Forum Nav:

Alps blue velvet pinout?

post #1 of 10
Thread Starter 
I am having a problem with an amp I just built. I am using a 50k Alps "Blue Velvet" pot that I wired up. I was unable to find the pinout of the pot so I traced it off a Pimeta. I am now thinking I got it wrong. So...Can anyone tell me the pinout?

Thanks!
post #2 of 10
This might help you http://www3.alps.co.jp/WebObjects/ca...K271/RK271.PDF
post #3 of 10
Thread Starter 
Quote:
Originally Posted by Fresno Bob
Am I missing it or is the pinout not listed there?
post #4 of 10
page 4 look to the right
post #5 of 10
THis is from an ealier thread here at Head-Fi. Confirmed by Nisbeth and Tangent in that thread. can confirm it works too. I saved the pic and wrote the pinout in the top of it in case it might be deleted some day. Hope the owner of the pic didn't mind (too much)
post #6 of 10
As a simple rule to get pinouts. Stereo pots will have 2 lines of 3 pins, each line represents one channel.

Turn the pot to minimum and measure the resistance between the pins, and then to maximum and measure the resistance.

Wiper: Will be the pin where at minimum and maximum the value changes. I.e. the other 2 pins will stay at 10, 20, 50 or 100k regardless of pot position.

Input: When the volume is at minimum the resistance between input and wiper should be high, when volume is at max resistance between input and wiper should be low.

GND: When volume is at min, res between GND and wiper should be low. When volume is at max, res between GND and wiper should be high.
post #7 of 10
Thread Starter 
Things are good now. My first Dynalo is up and working. I just need to wire in a power switch and LED and then I am done.
post #8 of 10

I just used this information.  This should get stickied some where.  Thanks Garbz

post #9 of 10

Why not just Google (images) "Alps RK27 pinout?"

Image result for Alps RK27 pinout

Image result for Alps RK27 pinout (of course, this one's from Tangent)


Edited by tomb - 3/22/15 at 9:34am
post #10 of 10

I saw that pic.  Thanks.  I appreciate learning how to fish not just eating.

New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Alps blue velvet pinout?