Lee hinted around at this the other day. It is time to open it up more broadly in this forum as it is ready for prime time.
Highlights:
A couple of pictures are below:
Release notes are below:
View attachment Release notes for PL400 Light Board Rev_B.pdf
Highlights:
- Offers 2 header based jumper modes - a small shunt jumper with handle allows you to quickly move between the 2 meter modes on a set of 3 pin headers.
- Mode 1 offers full wave rectified amplifier signal to each meters. This provides a doubling of normal meter sensitivity plus adds in a high frequency boost for signals above 2 KHz of approximately 4X. This is to address complaints that the normal PL meter sensitivity is too sluggish.
- Mode 2 offers the classic half wave rectification and meter sensitivity plus the high frequency boost.
- Adds test points for the plus and minus filtered rail for the LEDs to allow easy measurement.
- Utilizes low forward drop Schottky rectifiers for more accurate meter response.
- Added a notch beneath each meter round for better clearance with some of the very old meters.
- Added horizontally slotted mounting holes to allow for the rather large tolerances associated with the meter mounting scheme.
- The build version that offers all the functionality listed above is offered on the White Oak Audio Design website ONLY. Ebay offerings are now ONLY for the classic, simpler RevA build population.
A couple of pictures are below:
Release notes are below:
View attachment Release notes for PL400 Light Board Rev_B.pdf
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