Reflektor-D has its own on-board integrated raw PS section. Those raw DC boards are double mono bridge and main filter cap carriers for serving the Folded Simplistic Phono. They also got voltage dropping resistors places in case of too enthusiastic transformers and a fail safe resistive ground lift return path over yin yang 5A diodes. Following the phono's raw PSU example suggestion in its build guide. You can see one such board in use on the second picture of this post: http://www.diyaudio.com/forums/analogue-source/129126-simplistic-njfet-riaa-1287.html#post3985334
Is there a next GB planned?
As I´m a "little" short of money now...
This board seems popular enough that should be so. Always at Salas blessing of course.
Timelines are a little more unpredictable.
This board seems popular enough that should be so. Always at Salas blessing of course.
Timelines are a little more unpredictable.
Mike, is there enough JFET stash in your hands to throw in Ref-D semis kit one extra? Just one small Idss non useful for several minikits positions K117GR?
It can be used instead of R6 also and it gives an interesting differentiation there for those who will like to hear and decide it given the variation of applications.
thank you for reply Salas
I looked at Raw PS schematic and like to ask you why not a RC or CR filter
I thought at first that 5W resistance Is part of RC
do you recommend additional R to use for RC filter
regards
I only have high IDSS (based on sample) unmeasured one's left, and then not enough for every kit.
Maybe we can tweak kit for next run
I also blew their Kit money on a low PPM CMF-55 dale for that 1K position
I only have high IDSS (based on sample) unmeasured one's left, and then not enough for every kit.
Maybe we can tweak kit for next run
Alright, this is what I meant schematically anyway. That would push the LEDS VF a little bit too if Idss>2mA maybe 0.1V for two greens and that must be kept in mind also. Some could have spares already and if a few will find it interesting we can find a future solution with a similar modern JFET also, no worries.
Attachments
Its there between the bridge and filter reservoir cap because some Tx were going beyond 50V rectified despite spec so they created non useful input MOSFET sink temperature. It can cut some EMI as a side effect, but there is always subjective debate in using any kind of damping or electronic capacitance multipliers or chokes so I prefer not to carve in stone any extra filter for the raw DC config. If the mains and Tx give no more than 48VDC rectified, many use just a link or 1 Ohm.
Hopefully this coming week.
They have delayed shipment because the matte coating takes longer to produce for them. I don't know why. I suppose for the same reason it's harder to find matte polyurethane than satin around here.
