[Amps] HV rectifier strings - to bypass or not?

[Jim W7RY]

Mouser has .01 6KV Sprague disks. About 6-7 bucks each. There about 1" in 
diameter.

73
Jim W7RY


--------------------------------------------------
From: "Carl" <km1h at jeremy.mv.com>
Sent: Monday, November 01, 2010 2:51 PM
To: <K1SG at aol.com>; <amps at contesting.com>
Subject: Re: [Amps] HV rectifier strings - to bypass or not?

> I get most of mine in bulk off Fleabay
>
> Carl
> KM1H
>
>
> ----- Original Message ----- 
> From: <K1SG at aol.com>
> To: <amps at contesting.com>
> Sent: Sunday, October 31, 2010 11:21 AM
> Subject: Re: [Amps] HV rectifier strings - to bypass or not?
>
>
>> Hi Carl,
>>
>> Sounds like a good suggestion.
>> I went looking for suitable HV capacitors in the Mouser, DigiKey, Surplus
>> Sales and RF Parts catalogs, and found that Vishay/Sprague makes a nice
>> .01
>> uF 20 KV capacitor that sells for 68 cents...but no one stocks them, and
>> the minimum order is 5000 pieces! I didn't see any of the .0047s at all.
>> Any
>> suggestions on sources?
>>
>> Steve  Gilbert
>> K1SG
>> K1SG at AOL.com
>> 508-435-9133
>>
>>
>> In a message dated 10/31/2010 3:37:43 A.M. Eastern Daylight Time,
>> amps-request at contesting.com writes:
>>
>> Message:  1
>> Date: Sat, 30 Oct 2010 20:50:37 -0400
>> From: "Carl"  <km1h at jeremy.mv.com>
>> Subject: Re: [Amps] HV rectifier strings - to  bypass or not?
>> To: <audioguy at charter.net>, "AMPS"  <amps at contesting.com>
>> Message-ID:  <016301cb7895$a4272480$6501a8c0 at DAVES>
>> Content-Type: text/plain;  format=flowed; charset="iso-8859-1";
>> reply-type=original
>>
>> White noise is real but in an amp with RX/TX relay  isolation you wont
>> hear
>> it and it may not occur with big diodes.
>>
>> It  is noticable with SS receiving and audio gear and a single .01 or so
>> bypass across each leg of the rectifier takes care of it.
>>
>> I like to  add a single .0047 across the full string in an amp and 
>> another
>> at
>> the  output to ground to keep any high intensity and transformer 
>> stretched
>> spikes from bothering the diodes or electrolytics. The one to ground also
>> catches any stray RF that the plate choke or its bypass  missed.
>>
>> Carl
>> KM1H
>>
>>
>>
>>
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>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
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