Re: HV rectifier tubes, capacitors, other stuffFS

• To: tesla-at-pupman-dot-com
• Subject: Re: HV rectifier tubes, capacitors, other stuffFS
• From: "David Trimmell" <davidt-at-pond-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Mon, 06 Mar 2000 06:54:25 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Also note that all Mercury rectifier tubes like 866A's and 872A's are not
particularly great in high E RF fields. I personally like the MMD
(multi-mini-diode, to steal from others), but tubes can recover from
overstress conditions, where as solid state semiconductors are less
forgiving...

Regards,

David Trimmell

At 10:31 AM 3/5/00 , you wrote:
>Original Poster: "Reinhard Walter Buchner" <rw.buchner-at-verbund-dot-net> 
>
>Hi Ralph, all,
>
>> Original Poster: Parpp807-at-aol-dot-com
>
> << I have four 860s - these are 10KV 1 amp rectifiers - I don't need
>>them for  anything, perhaps someone messing with DC tesla coils
>>could use them - I am  told they are virtually indestructible.   $35
>>for all 4, plus shipping >>
>
>
>> Whoa there,
>> The 860 is a 4-pin power tetrode with plate and grid cap.
>> Do you mean 866?
>
>IF they are 866s, donīt forget to mention these are MERCURY
>vapor rectifiers. Not something you want to "pop" ;o)). It could
>be a problem to dispose of them properly, although they ARE
>very robust. Also, donīt forget they need at least a 2-3 minute
>warm up period, otherwise their characteristics go down the
>drain and they wonīt like this mistreatment for long.
>
>They DO look absolutely (I have one) cool, when they are
>running.  They emit an eerie blue glow, which is typical for
>all mercury filled rectifiers.
>
>Coiler greets from Germany,
>Reinhard
>
>
>
>
>

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