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Actually 2 Meg was a common AC impedance.No, VTVMs designed for repair shops were 10 Meg on the AC ranges and
11 Meg on the DC ranges. The extra 1 meg was in the DC probe to reduce
loading in tuned circuits to minimize the effects of probing the
circuit.
"JR North" <jasonrnorth@bigfoot.com> wrote in message
news:5qGdnUZYSoER5f3fRVn-sA@seanet.com...
Wrong group. Try rec.crafts.metalworking. Lots of guys work on their own
stuff there.
JR
zwickl@prodigy.net wrote:
I have a GE washer that is about 15 years old. It appears that the
bottom transmission seal is leaking. How easy is it to replace this
seal? Does the tansmission need to be removed?
--
What do you mean wrong group? Lots of *us* work on our own stuff too!
Replacing the seal is likely not too hard, nor is removing the transmission.
First call an appliance shop and see if a new seal is available.
Generally, any infared receiver will work. They have ground, + 5 volts,
& output. If your'e getting output, the remote is putting out a signal, &
the receiver is working. Your remote may be off frequency. Try a friends
generic remote, to be sure. The receivers rarely go, unless something gets
spilt on it buy cleaning the crt screen, or by getting shorted out. Rono.
"
Most "shop quality" VTVMs had 11 Meg DC and 1 Meg AC input impedance,"borgunit2003@yahoo.com" bravely wrote to "All" (08 Apr 05 04:50:09)
--- on the heady topic of "VTVM versus new DVM"
bo> From: borgunit2003@yahoo.com
bo> Xref: aeinews sci.electronics.repair:45265
bo> Hi,
bo> I am doing a tune up on an old turntable I have and according to the
bo> service manual I need to make measurements with a VTVM (vacuum-tube
bo> voltmeter). I own a Fluke 111 DVM, is there any reason why this can
bo> not work in place of the VTVM.
JR,
The requirement to use a VTVM was given because its input is 10 Meg
ohms or more and so it wouldn't affect the circuit voltages. A DMM
typically meets a 10 Meg ohm requirement and is equivalent to a VTVM.
Rare VTVM's used a 100 Meg ohm input but the standard was 10 Meg.
The meters that were running through batteries were some off brandIn article <1113446187.b66deea15fca474d29cd298180604101@teranews>,
Mark D. Zacharias <spammenot@yis.us> wrote:
Good point. How is the battery life on the Fluke meters?
I'd say my 179 is good, as it has auto power down. I've never had any
meter where battery life is poor - it's leaving them switched on
accidently which causes the problem.
The reason some people don't know for sure
RonGrossi382653@yahoo.com wrote:
The reason some people don't know for sure
Bob Parker wrote:
Not long ago I read that one of the internet pioneers made a
statement to the effect that "On the internet, things which normally
live under rocks are suddenly in your face".
That posting's proof that it's true, unfortunately....
sad thing is, this poster is probaly achieving the exact opposite of
what he originally set out to do. By constantly posting this irrelevant
stuff in inappropriate places, ramming it down everyone's throats and
violating usenet etiquette to the nth degree, he is creating (or
confirming) resentment not merely against himself but what he stands
for. Not a good way to spread your message or incite any respect for
your beliefs.
-Ben
I'm trying to help my son with his electronics lab work for school. The
project is to set up an exclusive or gate, an SN or DM 7486 and apply a
1.0KHZ square wave at a TTL level, (which I'm assuming is simply
5.0Vpp) to one input while alternating an either high or low level to
the other input. We are to observe the output of the gate on the scope
and then draw up a waveform display depicting the output corresponding
to the different inputs applied.
I'm using an old Systron Donner Datapulse 101 pulse generator which has
two outputs available: a positive and a negative. They are marked
SNIP
--I set up a 5.0Vpp 1.0ms positive going pulse with
a 50% duty cycle as measured on the scope and then attempted to apply
it to the input of the gate. As soon as I did this though the pulse
disappeared as though the gate's input was loading it down.
No knocks or drops. It's been well stored and handled. Never left in the carCamcorder: Sony CCD TRV67
I take it the machine hasn't been exposed to damp or humidity? has it
received a knock at all?
-Ben
In article <1113855952.132788.138740@o13g2000cwo.googlegroups.com>,
captainvideo462002@yahoo.com says...
I set up a 5.0Vpp 1.0ms positive going pulse with
a 50% duty cycle as measured on the scope and then attempted to apply
it to the input of the gate. As soon as I did this though the pulse
disappeared as though the gate's input was loading it down.
--
Dumb question - did you double check your pinouts on the 7486? Trying
to drive an output pin instead of an input with the pulse generator
could load it down. Pins 3, 6, 8, and 11 are the outputs, according to
http://www.abcsemiconductors.com/composants/pinout/7486.phtml
--
Jerry Maple
General Dynamics C4 Systems
Scottsdale, AZ
I too have a Radius IntelliColor Display/20e monitor with the exactMy Radius IntelliColor Display/20e starts up green, but with a
strong
green that suggests having the brightness turned up way too
high. The
green is like a
overall very strong wash, pretty much unusable since it's so
intense.
During these periods, the focus is also out. After a period
of time it
reverts to normal and is a lovely sharp monitor. That period
of time
seems to be lengthening.
Sometimes, after a while, the green seems to go away, but the
over-wash
and poor focus remains. Then still later the image goes back
to good.
At a guess, the microcontroller that handles the settings is
having some
difficulty and the monitor is starting up with some settings
in their
unbiased state. Perhaps its (the microcontroller's) 5v (?)
supply has
gone wonky--possibly expiring electrolytic caps? Or maybe
the memory
element that stores the settings (Flash, EEPROM?) has reached
the end of
its life with too many cycles?
Anyway, I'm handy with soldering tools from axial caps all the
way down to
208 pin quad flat packs. What I'm not any good at is
diagnostics.
I think that this monitor has an equivalent Sony model, but
I'm not
certain. It's definitely a trinitron. I can just make out
the two
horizontal lines at 1/3 intervals.
I hope that someone is familiar with this problem and can
point me at the
likely culprit in terms of component(s) that need replacing.
Thank you for any helpful or humorous suggestions,
Jeff
--
A friend will help you move. A real friend will help you move
a body.
Strangely it is only the Christian loonies that show this kind ofRonGrossi382653@yahoo.com wrote:
The reason some people don't know for sure
Bob Parker wrote:
Not long ago I read that one of the internet pioneers made a
statement to the effect that "On the internet, things which normally
live under rocks are suddenly in your face".
That posting's proof that it's true, unfortunately....
sad thing is, this poster is probaly achieving the exact opposite of
what he originally set out to do. By constantly posting this irrelevant
stuff in inappropriate places, ramming it down everyone's throats and
violating usenet etiquette to the nth degree, he is creating (or
confirming) resentment not merely against himself but what he stands
for. Not a good way to spread your message or incite any respect for
your beliefs.
-Ben
On 18 Apr 2005 13:39:21 -0700, "b" <reverend_rogers@yahoo.com> put
finger to keyboard and composed:
sad thing is, this poster is probaly achieving the exact opposite of
what he originally set out to do. By constantly posting this irrelevant
stuff in inappropriate places, ramming it down everyone's throats and
violating usenet etiquette to the nth degree, he is creating (or
confirming) resentment not merely against himself but what he stands
for. Not a good way to spread your message or incite any respect for
your beliefs.
-Ben
Strangely it is only the Christian loonies that show this kind of
disrespect for others. I don't think I've ever seen any Islamic spam.
- Franc Zabkar
I couldn't agree more with your thoughts about this. I remember a
comment in a book I read many years ago, that those who are certain of
something don't feel a need to ram it down the throats of others. Only
those who are insecure do it.... and make themselves look like fools
in the process.
Bob
Franc Zabkar <fzabkar@optussnet.com.au> wrote:
On 18 Apr 2005 13:39:21 -0700, "b" <reverend_rogers@yahoo.com> put
finger to keyboard and composed:
sad thing is, this poster is probaly achieving the exact opposite of
what he originally set out to do. By constantly posting this irrelevant
stuff in inappropriate places, ramming it down everyone's throats and
violating usenet etiquette to the nth degree, he is creating (or
confirming) resentment not merely against himself but what he stands
for. Not a good way to spread your message or incite any respect for
your beliefs.
-Ben
Strangely it is only the Christian loonies that show this kind of
disrespect for others. I don't think I've ever seen any Islamic spam.
- Franc Zabkar