"Charlie J" wrote in message
...
Thanks to both of you...Meindert-I don't understand the notation "2k2" or
"4k7" in your post. Would you please explain?

The k means thousand and is used as decimal point. So 2k2 means 2.2 kOhm.
And the reason I'm using the 'odd' numbers like 2k2 instead of 2k is that
they are standard values in the 5 to 10% precision range and thus easily
obtainable.

Meindert