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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 15th April 2019, 11:52 PM   #401
adydula is offline adydula  United States
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Oscar,

Its packed and ready to go. I am heading out town in the morning but will take it with me and post from my destination hopefully sometime tomorrow.

The Altoids Blue tin is in the package and the super cmoy is inside of it in foam.

You will have to drill and mount as we discussed and I included a small volume knob as well.

Stay tuned.
Alex
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Old 16th April 2019, 01:33 AM   #402
xrk971 is offline xrk971  United States
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OPA1688 Super CMOY, 2x 9V with real ground and headphone relay - PCBs
Use paper hole punch, and reamer to enlarge vol pot but not a drill. Drill rips and tears the metal.
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Old 16th April 2019, 04:55 PM   #403
Lavalier is offline Lavalier  United States
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Great looking work Adydula!

Also, if there's anyone wanting to use something a little different besides the classic Altoids tin, I found these on Amazon. The only downside is they only come in a 24 pack.

Amazon.com: 24 Pack! Tin Boxes - Black - Hinged Rectangular Storage Boxes - Great for Crafts, Gifts, Candles, Soap, and Other Uses - 3.75 by 2.45 by 0.8 inches (Same Size As an Empty Altoids Tin) (Black)
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Old 18th April 2019, 07:01 AM   #404
WoodyLuvr is offline WoodyLuvr  Thailand
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Quote:
Originally Posted by agdr View Post
Congratulations! Very nice.
Yep, still going strong after six (6) months of being "on". Your idea (non-battery option) using a RECOM RW-0509D DC-DC Converter which converts the 5V from the USB 2.0 DIY power-only cable to the required 9V is working perfectly.
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Old 18th April 2019, 07:06 AM   #405
WoodyLuvr is offline WoodyLuvr  Thailand
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Quote:
Originally Posted by oscarmalmberg View Post
Great work Alex! Looks real good! A Super Cmoy is worth waiting for. Will be a joy to try it out, will keep you posted on my impression.
I guess this will make my fostex sing for sure.

And I also thank you again AGDR, both for setting me up with Alex and all the support!
Im holding my thumbs for a safe trip over the atlantic..

Oscar
You'll be very pleased with your Super CMOY built by @adydula. He does excellent work. Mine is working without a hitch now for nearly six (6) months straight always powered "on". Enjoy!
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Old 18th April 2019, 12:32 PM   #406
adydula is offline adydula  United States
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Headed the post office in a few minutes!

Alex
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Old 18th April 2019, 01:29 PM   #407
adydula is offline adydula  United States
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Oscar, its on its way to you!

First Class International Post.

FYI. for anyone that wants to know how much this costs, last year it was $13.50 , this year it went up to $14.50.

Alex
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Old 18th April 2019, 02:41 PM   #408
Lavalier is offline Lavalier  United States
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Quote:
Originally Posted by WoodyLuvr View Post
Yep, still going strong after six (6) months of being "on". Your idea (non-battery option) using a RECOM RW-0509D DC-DC Converter which converts the 5V from the USB 2.0 DIY power-only cable to the required 9V is working perfectly.
Glad to hear that WoodyLuvr!
Mine is also running off that same RECOM module and it's been working flawlessly.

My only possible concern with keeping yours on 247 is I looked up the Mouser page on the two organic polymer electrolytic capacitors (C11 & C12)
RNE1C101MDS1 Nichicon | Mouser
Their life cycle is rated at 5000 hours. If you've kept it on for 6 months that's 4380 hours...

So anyone that wants to chime in, what happens after surpassing the rated number of hours on an electrolytic capacitor?
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Old 18th April 2019, 10:03 PM   #409
oscarmalmberg is offline oscarmalmberg  Sweden
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Quote:
Originally Posted by adydula View Post
Oscar,

Its packed and ready to go. I am heading out town in the morning but will take it with me and post from my destination hopefully sometime tomorrow.

The Altoids Blue tin is in the package and the super cmoy is inside of it in foam.

You will have to drill and mount as we discussed and I included a small volume knob as well.

Stay tuned.
Alex
Great! It feels good to have it protected like that. You never know what might happend on the way. Nice of you to include a knob!

Quote:
Originally Posted by xrk971 View Post
Use paper hole punch, and reamer to enlarge vol pot but not a drill. Drill rips and tears the metal.
Thanks for the tip, I also heard that you can use hole punch plier for metal. We have a metal department at my design school, will borrow some tools. I been thinking about the hole for the led if its not tight enough you would get dust into the tin, from pockets and such. Seen some rubber gasket that people have around the led on some cmoy designs. Is it something to consider?

Quote:
Originally Posted by WoodyLuvr View Post
You'll be very pleased with your Super CMOY built by @adydula. He does excellent work. Mine is working without a hitch now for nearly six (6) months straight always powered "on". Enjoy!
Yes, I cant see how i could be disappointed, it seems to be much appreciated.

Quote:
Originally Posted by adydula View Post
Oscar, its on its way to you!

First Class International Post.

Alex
Thank you!
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Old 19th April 2019, 07:04 PM   #410
Lavalier is offline Lavalier  United States
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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
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