Re: [TCML] picture tube capacitor?

[HomerLea@xxxxxxx]

I get it now...was confused and thought the coating was on the inside of 
the tube. If I can't get someone to take the TV I will take it apart and check 
the tube capacitance...thanks to everyone for the help.
Jim Heagy

> Subj: Re: [TCML] picture tube capacitor? 
>  Date: 4/29/2013 4:14:03 AM Pacific Daylight Time
>  From: co60bishop@xxxxxxx
>  Reply-to: tesla@xxxxxxxxxx
>  To: tesla@xxxxxxxxxx
>  Sent from the Internet 
> 
> 
> 
> 
> Yes, the metal strap that wraps around the front of the picture tube is 
> the outside plate of the capacitor. There is a metalic coating on the outside 
> of the picture tube that contacts the strap which is connected to ground 
> inside your TV set. With voltages approching as high as 35KV applied to the 
> CRT it should make a very reliable capacitor. The question is what is the 
> capacitance of the tube. Check the capacitance to see if it is in the range 
> you need for your design.
> 
> Allen Bishop
> Principle Device Physics Tech
> Aeroflex
> 
> 
> 
> -----Original Message-----
> From: Jim Lux <jimlux@xxxxxxxxxxxxx>
> To: tesla <tesla@xxxxxxxxxx>
> Sent: Sun, Apr 28, 2013 8:58 pm
> Subject: Re: [TCML] picture tube capacitor?
> 
> 
> On 4/28/13 6:11 PM, HomerLea@xxxxxxx wrote:
> I thought to coat the outside with foil or conducting paint for the second
> terminal...I guess the tube wouldn't need it's vacuum...o/w could be 
> rather
> 
> wouldn't worry about implosion..
> e used to drop color TVs all the time for special effects jobs, and we 
> ad to rig them with explosives to actually get them to break.  The most 
> hat happens is the neck cracks and the tube vents to air.
> I would think that you don't need to coat it. there's already a 
> onductive coating connected to that second anode terminal.  What you 
> eed to do is find a suitable "ground", which might be the faceplate bolts.
> _______________________________________________
> 
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