MY PARADISE

[Bksabath]

Got new trafos wired up and now listening to Paradise R2 supplied with 2 18 V ac 40Va
Sink temperature = did not bother to measure it.
I had C 10 Homs C 10 homes C dropping voltage to about 22 VDC before it got to boards it was 32 V before still the regulators work pretty well

Now using 3 homes and 2 homes on the CRCRC so I am back up to the 26 V recommended
1) I am not sure as I need to listen to it a bit more but it was better before is my first impression, soundlike it struggles a bit when things get busy
2) The regulators are pretty blipping good.

[RCruz]

Originally Posted by Bksabath

Got new trafos wired up and now listening to Paradise R2 supplied with 2 18 V ac 40Va
1) I am not sure as I need to listen to it a bit more but it was better before is my first impression, soundlike it struggles a bit when things get busy

Try 80VA or even more... things might get more easy then... MTC

[Bksabath]

I don't think is due to the transformers as the 40 Va can give out over 1 A and paradise uses about 140 mA

The last 2 Cap banks are 4400 uF mounted near the Phono boards so is not starved for current as I said that was first impression and may be tired ear sindrome I will start afresh tomorow and see.

[buzzforb]

Sabbath, is this new toroid vs r core you had? What is difference of comparison?

[Bksabath]

Apart from lower voltagge no much Regulator in Paradise is realy good and solid
Tanks FDW by the way

[Bksabath]

No much progress here
Is to cold to work in the loft

But this is quite handy

Tanks to FDW

See Mpp #7730 and the building guide.

These are the most important/relevant messages regarding PSU and Pre-Reg.
Mpp #4375 PSU-pre-regulator.
Mpp #4610 V2 Schemas UPS and Amp.
Mpp #6506 CCS fine-tuning.
Mpp #6462 PSU with my notes.
Mpp #6809 Do not try to feed the CVS of the CCS of the shunt with a regulated power supply.
Mpp #7127 More about transformer selection.
Mpp #7635 Single and dual transformer wiring (also corrected drawing) (See also #7733).
Mpp #7733 Grounding (PSU, RIAA and Player).
Mpp #7810 35V PSU for the CroMagnon.
Mpp #7830 The PSU explained.
PradiseBuilders #13 Schema's and assembly guide.
PradiseBuilders #155 Vdc input voltage minimum simulated.
PradiseBuilders #970 PSU oscillates; posible solutions?
PradiseBuilders #983 Compensating the PSU for oscillations.
PradiseBuilders #1130 Updated 'Paradise R3 assembly guide'.
Have a look at these and their following messages.

[FdW]

Here is one with 'life' links

These are the most important/relevant messages regarding PSU and Pre-Reg.

1. Mpp #4375 PSU-pre-regulator.
2. Mpp #4610 V2 Schemas UPS and Amp.
3. Mpp #6506 CCS fine-tuning.
4. Mpp #6462 PSU with my notes.
5. Mpp #6809 Do not try to feed the CVS of the CCS of the shunt with a regulated power supply.
6. Mpp #7127 More about transformer selection.
7. Mpp #7635 Single and dual transformer wiring (also corrected drawing) (See also #7733).
8. Mpp #7733 Grounding (PSU, RIAA and Player).
9. Mpp #7810 35V PSU for the CroMagnon.
10. Mpp #7830 The PSU explained.
11. PradiseBuilders #13 Schema's and assembly guide.
12. PradiseBuilders #155 Vdc input voltage minimum simulated.
13. PradiseBuilders #970 PSU oscillates; posible solutions?
14. PradiseBuilders #983 Compensating the PSU for oscillations.
15. PradiseBuilders #1130 Updated 'Paradise R3 assembly guide'.

Have a look at these and their following messages.

[RCruz]

Cool

[Bksabath]

Tanks Frans for posting the links

And off course one of my "best Paradise post"

If aproximations need to be made is better to get RIAA values towards what Riccardo suggested as folows

Quote post 1052>

Here you have:

11nF, 32,1nF 9.9K and 73.7K
__________________
RC


IMO As long as both channels are the same aproximate RIAA to 0.01 % is a vaste of time

Get the 2 channels to be different and that is big stage killer as about screwing up the Tone of the instruments I already did that in the recording studio with the tape pitch controll and all those Knobs on the mixing desk

[RCruz]