[Boatanchors] Resitors

[MICHAEL TALLENT]

The wattage rating is probably for voltage breakdown of the resistors, so if 
you must use lower wattage then parallel is a no no.  Use a series 
connection to make the required resistance and needed wattage if necessary.

Mike  W6MXV

-----Original Message----- 
From: Rob Atkinson
Sent: Monday, July 08, 2013 10:39 PM
To: telegrapher at q.com
Cc: Boatanchors
Subject: Re: [Boatanchors] Resitors

Try getting pairs of 1 or 2 W. 6 and 10 Meg if possible and parallel
them?  Don't know--those values may or may not be even harder to find.

I think there are some other methods for setting up a h.v. audio pick
off involving multiple resistors in series for a voltage divider
network.  I don't see why they have to be so high watt.  The scope
isn't going to draw much current on the very high Z vertical input.

Rob
K5UJ

On Sun, Jul 7, 2013 at 6:44 PM,  <telegrapher at q.com> wrote:
> Looking for a couple resistors, 2 or 3 W, 3.0 Megohm and 5.1 megohm.  That 
> is the values in the modulator off the HV line that goes to the scope for 
> looking at the waveform going into the 100TH's.  I would have thought 
> maybe they would both have the same value as they are in series but not so 
> according to the color codes.  Most stuff these days is 1/4 or 1/2 watt or 
> less.  going above that to the 3 + watt level gets a tad bit more 
> expensive.  The existing ones of which the 5.1 meg unit is open are what 
> looks like the older carbon type.  Now i see they have some glazed glass 
> types.  DO you have any experience or knowledge of what these are like or 
> how reliable?
> NOt a lot of space here, maybe 2 inches so putting more than 2 in series 
> won't fit.
>
> Larry
> W0OGH
>