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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+AC\s+line\s+bypass\s+capacitors\s*$/: 13 ]

Total 13 documents matching your query.

1. Topband: AC line bypass capacitors (score: 1)
Author: Roger Graves <ve7vv@shaw.ca>
Date: Wed, 4 Feb 2015 09:52:18 -0800
My 160 TX is causing RFI to one of my baseboard heater programmable thermostats (switches modes, temperature, when I transmit). The thermostat has a 2 wire connection to 240VAC in a metal receptacle
/archives//html/Topband/2015-02/msg00078.html (6,703 bytes)

2. Re: Topband: AC line bypass capacitors (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Wed, 04 Feb 2015 10:32:09 -0800
There is a particular class of bypass capacitor required for the AC line, because it is subject to HV spikes from the power system. They are standard parts, rated specifically for 3-6 kV. buy from Ne
/archives//html/Topband/2015-02/msg00082.html (7,491 bytes)

3. Re: Topband: AC line bypass capacitors (score: 1)
Author: "Tom W8JI" <w8ji@w8ji.com>
Date: Wed, 4 Feb 2015 15:19:21 -0500
My 160 TX is causing RFI to one of my baseboard heater programmable thermostats (switches modes, temperature, when I transmit). The thermostat has a 2 wire connection to 240VAC in a metal receptacle
/archives//html/Topband/2015-02/msg00094.html (9,177 bytes)

4. Re: Topband: AC line bypass capacitors (score: 1)
Author: Paul Christensen <w9ac@arrl.net>
Date: Wed, 04 Feb 2015 15:55:27 -0500
As a substitute for X1 Y2 line caps, an in-line RFI/EMI filter can be used that already contains the X/Y-rated caps. See the bottom of p. 21: http://audiosystemsgroup.com/RFI-Ham.pdf These filters c
/archives//html/Topband/2015-02/msg00102.html (8,105 bytes)

5. Re: Topband: AC line bypass capacitors (score: 1)
Author: "Charlie Cunningham" <charlie-cunningham@nc.rr.com>
Date: Wed, 4 Feb 2015 19:30:43 -0500
Hi, Paul For AC line bypass capacitors look for UL-rated Ceramic Disc capacitors that typically have AC working voltages like 250 VAC or higher. These are designed and rated for AC line service and c
/archives//html/Topband/2015-02/msg00111.html (9,706 bytes)

6. Re: Topband: AC line bypass capacitors (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Wed, 04 Feb 2015 17:01:26 -0800
On Wed,2/4/2015 4:30 PM, Charlie Cunningham wrote: For AC line bypass capacitors look for UL-rated Ceramic Disc capacitors that typically have AC working voltages like 250 VAC or higher. These are de
/archives//html/Topband/2015-02/msg00114.html (9,101 bytes)

7. Re: Topband: AC line bypass capacitors (score: 1)
Author: Bill Wichers <billw@waveform.net>
Date: Thu, 5 Feb 2015 01:02:04 +0000
Digikey carries Panasonic's line of ac Lin filter caps. They are " Sent from my iPhone _________________ Topband Reflector Archives - http://www.contesting.com/_topband
/archives//html/Topband/2015-02/msg00115.html (8,836 bytes)

8. Re: Topband: AC line bypass capacitors (score: 1)
Author: Bill Wichers <billw@waveform.net>
Date: Thu, 5 Feb 2015 01:05:47 +0000
Digikey carries the Panasonic ECQ-UL series film capacitors that are rated for use as ac line bypass caps. I've used them before in thyristor (triacs, in this case) phase control drivers. They are du
/archives//html/Topband/2015-02/msg00116.html (9,059 bytes)

9. Re: Topband: AC line bypass capacitors (score: 1)
Author: Bill Wichers <billw@waveform.net>
Date: Thu, 5 Feb 2015 01:08:31 +0000
To add to this, I used 1,000vac rated ceramic caps in a VFD once some years back and they failed in spectacular fashion. This was in a 277vac system. Such caps should NOT be used on the AC line! Use
/archives//html/Topband/2015-02/msg00117.html (9,640 bytes)

10. Re: Topband: AC line bypass capacitors (score: 1)
Author: HAROLD SMITH JR <w0rihps@sbcglobal.net>
Date: Wed, 4 Feb 2015 18:16:29 -0800
Hi Charlie, I can remember when the Collins S-Line used .01 600volt disk ceramic capacitors on the power supply connector. They were from the AC switch to ground. They were almost always burnt and ma
/archives//html/Topband/2015-02/msg00129.html (11,045 bytes)

11. Re: Topband: AC line bypass capacitors (score: 1)
Author: "Charlie Cunningham" <charlie-cunningham@nc.rr.com>
Date: Wed, 4 Feb 2015 23:29:38 -0500
Hi, Harold - well it's been a while, I know that we regularly used line bypasses in electricity meter and they had to be really robust, but I was mostly and RF and communications guy and when I had t
/archives//html/Topband/2015-02/msg00144.html (12,536 bytes)

12. Re: Topband: AC line bypass capacitors (score: 1)
Author: "Charlie Cunningham" <charlie-cunningham@nc.rr.com>
Date: Wed, 4 Feb 2015 23:37:02 -0500
Hi, Jim Well those are the class of capacitors that I was referring to and we used them in electricity meters that had to operate from line voltages as high as 480 VAC - high-line -or 530 VAC, and of
/archives//html/Topband/2015-02/msg00145.html (9,697 bytes)

13. Re: Topband: AC line bypass capacitors (score: 1)
Author: Kenneth Grimm <grimm@sbc.edu>
Date: Thu, 5 Feb 2015 10:26:00 -0500
Jim is right about X1/Y2 caps. Anyone who has restored a lot of boatanchors will tell you that you are wasting your time using anything else for AC line bypassing. See this listing as an example: htt
/archives//html/Topband/2015-02/msg00167.html (9,527 bytes)

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