Thanks for all the replies so far, everyone !
Here's a rundown:
- just replaced the DVM's batteries the day before.
- quite sure (like in:100%) that the '3' in '32" is just that: a number three :-)
- the individual resistors do indeed measure correctly (pm).
- I'm beginning to suspect that the "200M" setting on the DVM is a joke; a bit like the speedometer in cars, where every car seems to be able to do 240Km/H.
- I'm also anally retentive in thinking that the color banding on resistors is a joke as well, what with certain manuf's putting green bands on dark green backgrounds et all -- so I often simply measure resistors. Amazing to see how far off certain values can be, even with 1% resistors.
And, Ken, how important is it then to get those particular high values exactly right (in the VCO) ? For instance, would a 20M (instead of 22M) be good too ? (for lesser kludginess)
_g
Here's a rundown:
- just replaced the DVM's batteries the day before.
- quite sure (like in:100%) that the '3' in '32" is just that: a number three :-)
- the individual resistors do indeed measure correctly (pm).
- I'm beginning to suspect that the "200M" setting on the DVM is a joke; a bit like the speedometer in cars, where every car seems to be able to do 240Km/H.
- I'm also anally retentive in thinking that the color banding on resistors is a joke as well, what with certain manuf's putting green bands on dark green backgrounds et all -- so I often simply measure resistors. Amazing to see how far off certain values can be, even with 1% resistors.
And, Ken, how important is it then to get those particular high values exactly right (in the VCO) ? For instance, would a 20M (instead of 22M) be good too ? (for lesser kludginess)
_g
--- In cgs_synth@yahoogroups.com, "cg_synth" <sasami@...> wrote:
>
> Most digital multimeters can't measure over 20M, if even that much.
> I often wonder why Serge thought such a miniscule bias current was needed. There's another spot where there is a 1M between the wiper of a pot and one end. I can't see that making a lot of difference either.
>
> --- In cgs_synth@yahoogroups.com, "Guy" <guy@> wrote:
> >
> > I need a 22M resistor, so I solder two 10M's + one 2M in series.
> > However, when I measure the end terminals, I end up with something like 32M ?
> > When I measure in the middle *between* the two 10Ms (the 2M comes last), I get about 20M.
> >
> > Once again, I am puzzled by this illogical behaviour.
> >
> > _g
> >
>