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OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
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Old 20th April 2019, 01:11 AM   #411
xrk971 is offline xrk971  United States
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OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
The LED hole is small enough for a drill.
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Old 20th April 2019, 02:10 AM   #412
WoodyLuvr is offline WoodyLuvr  Thailand
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Quote:
Originally Posted by Lavalier View Post
I think I answered my own question doing a little research. But for anyone curious, here's what I found out

The number of rated hours for a capacitor are estimated by it operating at its maximum rated temperature. In the case of C11 & C12, it's 105C.

As you decrease the ambient operating temperature from its maximum, however, the estimated life skyrockets in the number of hours.

So in the case of C11 & C12 in the datasheet it says,
"105C 2000Hrs at rated voltage"

But according to this calculator:
Capacitor Life Calculators | Electrolytic | Film | Ceramic | Illinois Capacitor
Using the polymer type, the estimated life hours at say, 70F would be 78,237,507 hours!

So Woodyluvr, I think you should be totally fine leaving it running 247
Awesome! Thank you for this info! You had me slightly concerned there but I kept coming back to the original end-use of this converter (medical grade equipment) and thought it HAD TO BE longer than that. Very happy that it is!

With the giant heat sink attached it is just barely warm to the touch... far cooler than say my INTEL KABY LAKE PENTIUM CPU which is not even 65 C. So I say it is running well under 60 C.
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Old 16th May 2019, 08:13 PM   #413
adydula is offline adydula  United States
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Hey WoodLuver, do you recall how long it took to get the amp I sent to you? Oscar in Sweden as far as I know has not received his I sent a few weeks back...just wondering and hoping he gets the amp ok. I sent it to him the same way I sent yours..

Thanks
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Old 17th May 2019, 03:08 AM   #414
WoodyLuvr is offline WoodyLuvr  Thailand
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You sent mine on FRIDAY 20 JULY and I received it on WEDNESDAY 1 AUGUST
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Old 17th May 2019, 07:20 PM   #415
oscarmalmberg is offline oscarmalmberg  Sweden
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I got a message yesterday from customs and have paid the import charges. Im most certain that this is the amp, since im not expecting something else. It usually does not take this long time, if it arrives in beginning of next week, then it took over a month.
As long as it arrives, i dont mind waiting.
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Old Yesterday, 08:52 PM   #416
adydula is offline adydula  United States
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Oscar I am glad it arrived in country. I hope the import charges were not too excessive!

I certaintly hope it arrives intact and works well for you.

All the best
Alex
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