Help: Attempting a Geofex Spyder

Frequently asked questions regarding powering your pedal.
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minnow
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Post by minnow »

Hi friends,
I am in the midst of attempting to build my own power supply unit :applause:

I am planning to use this circuit by RG which can be found at his site: http://www.geofex.com/Article_Folders/Spyder/spyder.htm
RG Spyder.png
RG Spyder.png (4.99 KiB) Viewed 500 times
I have this transformer and bridge rectifier:
IMG_3473.JPG
IMG_3473.JPG (27.33 KiB) Viewed 500 times
I need some help to understand a few things:
1. What would be the transformer Amp output? It says 12VA. I did a search on the net but couldn't understand the conversion from VA to A :(

2. I couldn't get any DB01s, but I have RB154 which has similar tech specs (http://www.rectron.com/data_sheets/rb151-157.pdf). I can't understand the pinout of the RB154 though, there's only one lead with a "+" mark. I'm guessing that the "-ve" pin should be the one directly opposite the +ve? The remaining two pins shouldn't matter since it is AC, right? :hmmm:

3. How do I wire the transformer to obtain 12V (since it's got 6V-0-6V)? :scratch:

4. What should be the value for components A,B,C,D & the diode in RG's schematic? :slap:

Is this correct? :oops: :
blurrr.png
blurrr.png (22.52 KiB) Viewed 500 times

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