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Wirenut

Fri Jun 13 2008, 02:49AM

Registered Member #141 Joined: Sat Feb 11 2006, 01:14PM
Location: Southern California
Posts: 96

If I need to include it, what value should it be?

the same as C15?

Austin, Wirenut, did you guys include this cap?

I threw a 10uF tantalum cap in there (same as c15) and it works fine - I'm not sure if it's needed as it's not on the schematic or parts list though.

Austin

Fri Jun 13 2008, 05:08AM

Registered Member #1169 Joined: Wed Dec 12 2007, 09:16AM
Location: Portland OR
Posts: 251

I would not use the images listed in the book as any indication of where parts should go because some of them are outdated. Following the schematic would be your best bet. I don't have the book in front of me however if Wirenut says its not listed in the schematic, chances are I did not include it.

Ultra7

Fri Jun 13 2008, 04:02PM

Registered Member #1157 Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307

Wirenut wrote ...

I threw a 10uF tantalum cap in there (same as c15) and it works fine - I'm not sure if it's needed as it's not on the schematic or parts list though.

I suppose I'll do the same thing.
I guess it's better to have it, and not need it, than to need it and not have it. . .
Kind of like toilet paper.

HV Enthusiast

Fri Jun 13 2008, 05:29PM

Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068

Ultra7 wrote ...

There is an Unknown tantalum Capacitor on page 81 in the upper left corner.

I have not found an image online that shows this capacitor, but rest assured, the book shows that there is a capacitor here.
What capacitor is this in the parts list, or is it not in the parts list.

If I need to include it, what value should it be?

the same as C15?

Austin, Wirenut, did you guys include this cap?

Thanks for any help. . .

Ultra7

Yes, this was kind of an optional capacitor. Just as an energy storage reservoir. Not really needed, but if you put it in there, its not going to hurt anything. Just helps supply energy to any bypass caps during switching.

KresoLiubov

Fri Jun 13 2008, 08:15PM

Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213

Dr. Shock wrote ...

Yes, this was kind of an optional capacitor. Just as an energy storage reservoir. Not really needed, but if you put it in there, its not going to hurt anything. Just helps supply energy to any bypass caps during switching.

What was original value of it ?

HV Enthusiast

Sat Jun 14 2008, 06:57PM

Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068

these capacitors are typically rated at least 10x the combined bypass capacitance on the board.

KresoLiubov

Fri Jun 20 2008, 12:52PM

Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213

Hello,

i hope i can jump in this thread and ask few questions :

Fairrite does not have a toroid core 5978006401
Digikey was out of stock on 18 and 220 TVS, can anybody sell me some ?

Ultra7

Fri Jun 20 2008, 04:08PM

Registered Member #1157 Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307

KresoLiubov wrote ...

Fairrite does not have a toroid core 5978006401
Digikey was out of stock on 18 and 220 TVS, can anybody sell me some ?

Check Mouser.
18V

220V

As far as the toroidal core. . .
Kreger has plenty of them.

Might ask to sample one from them.

Or, I used Steve Wards source for toroidal cores.

Package of 5 for a dollar.

We'll see how well these work when I fire it up.

KresoLiubov

Fri Jun 20 2008, 04:38PM

Registered Member #1153 Joined: Mon Dec 03 2007, 07:27PM
Location: Croatia
Posts: 213

Ultra7 wrote ...

KresoLiubov wrote ...

Fairrite does not have a toroid core 5978006401
Digikey was out of stock on 18 and 220 TVS, can anybody sell me some ?

Check Mouser.
18V

220V

As far as the toroidal core. . .
Kreger has plenty of them.

Might ask to sample one from them.

Thanks, i will try to see in these shops. Problem is that evrytime i order something it calls for 50-100 $ of shipping

Ultra7

Fri Jun 20 2008, 06:25PM

Registered Member #1157 Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307

KresoLiubov wrote ...

Thanks, i will try to see in these shops. Problem is that evrytime i order something it calls for 50-100 $ of shipping

EEEK!
I see your issue now.

I'm kind of lazy, with a really difficult work schedule, but I guess if you needed someone to ship gear to you, I'd be happy to try and help.

Looking at US Postal, overseas to Croatia, with a flat rate envelope and a 6-10 day delivery . . .
Is $11.95 USD.

A first class international package with weight at 3 pounds is $23.00 USD.
The weight is over rated, I figure a 1 pound package should work.
A 1 pound package is $10.30USD. The issue here, is that it says delivery time "Varies". What does that mean to you and me? I don't know, maybe a week, maybe a month.

Add that to what it would take to ship any of those to me in Texas, and that might end up cheaper than supplier shipping rates.
I guess the only issue would be the shipping times.
the
If you want to try to work this out, PM me.

I'll post a topic in the general discussion and see if anyone else has gone this route before, and see if they can give us pointers.
Has anyone else used the US Mail to ship gear to guys and gals overseas before?

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