Placid HD Version 2.1 - A significant step forward.

[smooth dancer]

Yes,he does and have been for several weeks. Waiting for mine any day now.....

 

[BrianDonegan]

I am only shipping the latest version of both Tridents and AVCC.

I updated the web page to eliminate the confusion (removed version numbers).

The Buffalo-II and Buffalo-III combos are now identical, so I also cut that down to a single option.

 

[bk856er]

Received/installed the updated AVCC for my Buff-II earlier today. Sounds lovely.

I made a number of changes lately, but the Placid HD 2.1 BP and updated AVCC were definitely winners.

BK

 

[smooth dancer]

Is Tridents v.3.0 the latest ? Or am I missing something ?

 

[MartinC700]

I think that it's only the AVCC that has been updated recently.

 

[David Garretson]

I installed the new AVCCs and Placid 2.1 powered (as earlier) by two paralleled 95AH 12V Enersys Odyssey batteries. 22uf/160V ClarityCap PWA film caps replace supplied electrolytic reservoir caps on Placid, with TX2575 resistors in all 1/4W positions. Huge improvements!

 

[MWL168]

Brian and Russ:

I just came across this thread today. I bought a Placid BP along with the Retro RIAA back in Feb. 2014. I assume I have the previous version of the Placid then?

Although I have not yet built the kits yet, I have planned all along to eventually use a complete dual-mono setup where each channel of the Retro RIAA will be powered by its own Placid. Am I correct to assume I should not mix the old and new versions of the Placid for such a setup?

 

[barrows]

lower V out on Placid HD 2.1??

Quick question: I need ~3.7 VDC out from the Placid HD v2.1, is lower voltage output possible, and, is perhaps this the reason for the supplied R8 @ 220R?

Thanks!

 

[Russ White]

Honestly I have never tried it - it may work - I will give it a try when I have some time.

 

[barrows]

3.7 VDC out from Placid HD v2.1?

Is the Placid HD capable of voltages lower than 5 VDC? I guess I will just try adding another 1KR in series with VR2 and see what happens, EZ to reverse anyway...
If anyone has an idea for achieving lower voltage out, I woudl love to hear suggestions, or maybe the circuit is not capable of gouing lower with the given Vref?

 

[barrows]

Lower voltage output

Is the Placid HD capable of voltages lower than 5 VDC? I guess I will just try adding another 1KR in series with VR2 and see what happens, EZ to reverse anyway...
If anyone has an idea for achieving lower voltage out, I woudl love to hear suggestions, or maybe the circuit is not capable of gouing lower with the given Vref?

update: I ended up with an additional 2K87R in series with VR2 (2KR pot) and was easily able to achieve 3.6-3.7 VDC target output. The Placid is burning in on a resistive load now for testing, but all seems fine, with unmeasurable ripple on the output. Looks to me like a 5K pot for VR2 would be the easy way for folks looking to produce 3.3-3.7 VDC.

Russ: is there any reason to be concerned about this change? Everything appears to be working fine here, of course a little more heat with a 9V transformer, but that can be handled.

 

[Russ White]

I am glad it is working well.

It should be ok, but you're getting close to the marginal part of the op-amp supply parameters. Still should be just fine. 🙂

 

[Tolik]

Hi Russ,
I'm thinking about to power my headamp by the placid hd bp PSU. I'm interesting to know how mych current I'll be able to draw from the placid with the stock / increased heatsinks ? Generally I'll need about 700-800mA maximum.