On Wed, 11 Mar 2015 21:26:29 +, cfo wrote:
> Gents
>
> I just got a Racal 9480 w. OCXO and 40x10MHz outputs I can't find any
> user or service manuals for this unit.
>
> Can anyone help out here ?
>
> I don't even know if the OCXO labeled "Frequency Standard 11-7038"
> is an Opt 04A or 04F.
Gents
I just got a Racal 9480 w. OCXO and 40x10MHz outputs
I can't find any user or service manuals for this unit.
Can anyone help out here ?
I don't even know if the OCXO labeled "Frequency Standard 11-7038"
is an Opt 04A or 04F.
TIA
CFO - Denmark
--
E-mail:xne...@luna.dyndns.dk
__
Hi Alan,
Generally, flux cleaner is designed to clean off non polar substances,
which for our purposes can be thought of as things that water wouldn't
dissolve... such as rosin, oils and greases...
Most any sort of organic salt, hydroxide, acid, ... dissolves nicely in
water, but won't dissolve
V. amusing - it would be interesting to know the stats re this list and OCD :)
Of course, it can be a good vice in some circumstances if it means pushing the
boundaries of science or engineering.
No sense of cleaning the board with standard flux cleaner, EPA etc?
I have a sense that (like sculp
Hello Mickle,
many thanks for these documents!
Do you know, whether Datron 1271, 1281 are identical in hardware, and Fluke
8508A very similar to the Datron instruments, concerning the main PCB?
Maybe differences between 8508 and 1281, only concerning volt references and
user inetrface?
Fran
That is a predominate reaction, but only on the surface.
Under the carbonate layer, you will find lots of nice
caustic KOH.
When I clean up NiCad vomit, I put the crusted parts into
a cup of white vinegar, where they fizz for hours.
I use white vinegar because it is distilled, and as such,
every
Potassium Hydroxide absorbs carbon dioxide from the air quite rapidly, so what
you find on a circuit board is much more insoluble potassium carbonate and/or
bicarbonate. Being an ionic compound you may well find copper carbonate, zinc
carbonate, tin carbonate and lead carbonate from other metal
Forgot about the chopper assembly - washing would probably not be good for it.
Ed
Yes, you are being a little too OCD about this. Instrument washing
issues come up often, and there are plenty of opinions available -
here are some of mine:
In the 419s that I have, the battery leakage crud ha
Yes, you are being a little too OCD about this. Instrument washing
issues come up often, and there are plenty of opinions available -
here are some of mine:
In the 419s that I have, the battery leakage crud has not gone beyond
the circuit boards or maybe the edge connectors. Cleaning the board
Hello Stan,
since KOH is water soluble, thorough cleaning with a moist cloth (di
water) should do the job as well. Just wear proper protection, i.e.
safety goggles and gloves. I myself would use disposable latex gloves
from the grocery store in this instance, since you are dealing with very
d
On 11/03/2015 06:26, Chuck Harris wrote:
Does KOH really evaporate, and spread in the wind?
I don't think it does.
In my experience, the damage done by nicad's is limited to
where the electrolyte dribbles, spatters, or wicks.
Powdered electrolyte can get all over things, but usually
it can be j
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