Re: Or 2 x 4.7M was: 10Mohms1/4 watt resistors

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Harold Weiss" <hweiss@xxxxxxxxxx>

Hi Terry,

On my version of MMC, I put a thin sheet of .030" acyrlic between the 
resistor and the perfboard to prevent a jump from the resistor to 
cap.  The acyrlic can be found at Hobby Lobby for doll house windows ect.

I also agree on the two resistors as they are only rated for 
something like 500V.  If I remember, there have been a couple of 
blowouts on these resistors, so dropping the voltage across them is 
not a bad idea.  I'll still use the 10 megs until I'm out of them.

David E Weiss

> Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>
>
> Hi,
>
> I still have some so I wrote Gates off list too...
>
> In the future, I think I will go to using two 
> DigiKey#  4.7MH-ND  instead of 10MH-ND.
>
> These are 1/2 watt carbon film 4.7 Meg resistors instead of the 
> single 10Meg resistor.  The advantage is that you can put two in 
> series and then the leads will be long enough to reach over to the cap leads.
>
> I think DC and a few others do this and I think it is a great idea 
> too!! It double the cost to 2 cents instead of 1 cent :0)) but a 
> small price to pay to get past the leads always being too short 
> ;-))  It also reduces the voltage stress if the resistor is next to 
> the cap since the center is now "neutral".  The voltage is now 1/2 
> on the resistors too which helps that concern even though it has 
> never been a problem.
>
> Does anyone have any concerns with this??
>
> Cheers,
>
>         Terry