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Author Topic: Why Orange Drops?  (Read 50023 times)
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WA1GFZ
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« Reply #75 on: January 13, 2012, 12:51:59 PM »

Dave,
Chip ceramic caps would make a fine bypass as long as the voltage rating is good.
They also make RF chip caps with foil leads. a CKO6 has a chip cap inside.
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W2VW
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« Reply #76 on: January 13, 2012, 02:26:45 PM »

Dave,
Chip ceramic caps would make a fine bypass as long as the voltage rating is good.
They also make RF chip caps with foil leads. a CKO6 has a chip cap inside.

TNX.
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W3GMS
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« Reply #77 on: January 13, 2012, 04:29:17 PM »

Dave,
Chip ceramic caps would make a fine bypass as long as the voltage rating is good.
They also make RF chip caps with foil leads. a CKO6 has a chip cap inside.

TNX.

Dave,

For ceramics we always used a voltage de-rating factor of .6 to get the MTBF that we were looking for.  Ceramics caps are very long life caps when used properly.

Joe, W3GMS
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Simplicity is the Elegance of Design---W3GMS
WA1GFZ
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« Reply #78 on: January 13, 2012, 04:36:02 PM »

I Agree Joe.
You really need to belt a ceramic chip cap to take it out.
CK06s and CR05s also good. I'm running 100 volt CK06s on my 300 watt Erbtec
final at 50 volts supply. Push pull the voltages are well over 100. I'll be swapping to 200V chips soon.
CKR22s are the only ceramic caps I have seen any real failures out of the box.
Even disc ceramics don't usually fail.
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N4LTA
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« Reply #79 on: January 13, 2012, 04:39:54 PM »

I now use Mallory 150s in all my guitar amp kits rather than orange drops. Mouser has them in stock and they are smaller than the Orange Drops and seem every bit as good. I like the axial leads. They used to be yellow but all of the recent ones are now white. Cornell Dublier makes some very high quality tubular caps for high current applications but they are not cheap. For my Class E PWM filter , though, I used them exclusively. You should use what the application calls for!

Pat
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N7CTF
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« Reply #80 on: January 13, 2012, 05:11:44 PM »

 Wink
Looking at some of these caps I see for instance a yellow .5mfd says ETR MET and the value of 504K630V.  The "ETR" must be the brand.  The "MET" is for Metalized Polyester Film i guess.
ETR is ETR electronics, LTD

Subsidiaries:
   

1. Sinhua Electronics (Shanghai) Co., Ltd.

2. ETR Electronics (Singapore) Co., Ltd.

3. ETR Electronics (India) Co., Ltd.

4. ETR Electronics (Hong Kong) Co., Ltd.
Product Items:    

1. Polyester Film Capacitor
2. Polypropylene Film Capacitor
3. Metalized Polyester Film Capacitor
4. Metalized Polypropylene Film Capacitor
5. LEDs & LED Displays
6. Tantalum Capacitors


A Electrolytic has a brand name on it of MIEC  and states the value in MFD.
Here's what I found:
Ling In Electronics Co., Ltd. - Aluminum Electrolytic Capacitor, Electrolytic Capacitor, Middle and High Voltage Capacitor, Car Capacitor.

So.. what am I gonna use?  U bet..  You guessed it!   Grin



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N4LTA
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« Reply #81 on: January 13, 2012, 08:12:13 PM »

I wouldn't hang my hat on the Orange Drops being USA parts - Maybe so but likely not. Sprague no longer exists - Vishay bought them years ago. As someone mentioned earlier - it's not where they are made - its to what the manufacturing  specs are. Lots of USA companies have quality parts made outside the USA.

Cornell Dublier has a plant in Myrtle Beach and Kemet has a plant in Greenwood, SC but most of their stuff is manufactured overseas. I have been inside the Kemet plant. They package the chips into epoxy and add leads but the chips come in in plastic barrels from Mexico and other places.

I used to use the Atom electrolytic caps - they cost three times as much as the Nichicons and United Chemicons and then the price trippled - all for an inferior capacitor that was twice as large and with worse leakage.

Pat
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WA1GFZ
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« Reply #82 on: January 13, 2012, 08:28:05 PM »

Remember the guy selling Spprague caps at Deerfield? I bet those bags were the last of the USA made caps.
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N7CTF
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« Reply #83 on: January 16, 2012, 09:36:42 AM »

Pat,

I just don't see the Mallory brand at Mouser.

Yup.. with postal rates going up this hobby or profession is going to have a little higher overhead.  Golf anyone? Shocked

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N4LTA
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« Reply #84 on: January 16, 2012, 06:00:07 PM »

They are on Mouser catalog page 958  - they are actually manufactured by CD now - I am not sure when they started but they are still called Mallory 150s. Don't know if they are manufactured in Myrtle Beach or offshore now.

Pat
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KM1H
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« Reply #85 on: January 17, 2012, 01:46:30 PM »

Remember the guy selling Spprague caps at Deerfield? I bet those bags were the last of the USA made caps.

I bought several at Spring and Fall. His wife worked there and most were oddball but useable values to anyone that has clue. I also keep his amps running Cool
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WBear2GCR
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Brrrr- it's cold in the shack! Fire up the BIG RIG


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« Reply #86 on: January 17, 2012, 08:16:53 PM »



<raises hand>

Oh, oh, oh!

Pick me! Pick me!!

I know, I know I know!

It's because Lemon Drops won't work!!  Tongue Tongue

                 _-_-bear


(ok, sorry, just had to say it...)
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_-_- bear WB2GCR                   http://www.bearlabs.com
kb3rdt
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poop cup


« Reply #87 on: January 17, 2012, 09:37:25 PM »

Just buy tear drops get over with! HAHAHA!
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