14 Mar
2001
14 Mar
'01
2:23 p.m.
Although it's not directly classic computer related, I got a kick out of this
email I received today. Some of you may enjoy it... Remind me to tell you
about the fun I had a few years back with surface mount MIL-SPEC 0 Ohm
resistors. (Yes that is a zero).
There is currently a worldwide shortage of very high
value ohmite resistors
in the range of 100 - 10,000,000 Mohms (yes, up to 10^13 ohms - they
actually do exist!). The best lead time is ~18-20 weeks.
If anyone has a resistor of this type, I need the 10^13 ohms value, which I
would borrow for a few tests if possible.
Eric
15 Mar
15 Mar
5:06 a.m.
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8:09 a.m.
FWIW, I do (seriously) have 10^9 ohms here. I think I
have at least one
of 10^10 or 10^11 (and maybe the 10^12 or thereabouts). Nothing higher,
though. You have to be darn careful handling these things -- a
dirt/grease track on the body will be in parallel with the resistor, and
will probably have a much _lower_ value of resistance.
OK... I have to ask:
What is the resistance of 1/4 inch of dry air?
What about 1/8 inch of fiberglass circuit board?
10:31 a.m.
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8:54 a.m.
On Thu, 15 Mar 2001, Tony Duell wrote:
FWIW, I do (seriously) have 10^9 ohms here. I think I have at least one
of 10^10 or 10^11 (and maybe the 10^12 or thereabouts). Nothing higher,
though.
Am I right in thinking that the colour coding system can't cope with
values > 9*10^10?
--
Regards
Pete
10:26 a.m.
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11:35 a.m.
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participants (6)
-
archer＠topnow.com -
ard＠p850ug1.demon.co.uk -
bills＠adrenaline.com -
korpela＠ellie.ssl.berkeley.edu -
mikeford＠socal.rr.com -
peter＠joules.org