Dick,
That was possible, and done commonly back in the old days of vacuum tube
gear with open inductors and not too much else to be harmed by the water
(once dried out), it worked just fine as long as lubricants were added
to things like capacitor shafts after the 'washing'.
Today with ICs
Looks like we have beaten this one to death. ;-) Time to end the thread.
In general, please self moderate (limiting the number of posts on a topic) and
do not wait for me to jump in, as I can get busy or may be out of town when
these long threads occur.
73,
Eric
Moderator (hopefully not
I read about guys whose rigs were flooded a few years back, and they
washed them in water and dried them somehow. Said they worked fine
after that. Hard to imagine though.
Dick, n0ce
On 7/27/2016 1:15 PM, Fred Jensen wrote:
My S3-line acquired a chronic case of creeping fungus on the
I remember the good old days when it was rosin flux and Freon TF in a vapor
degreaser :-)
Then my employer (Hughes) invented "lemon juice" flux as we called it, and gave
away the patent.
On 7/27/2016 2:11 PM, Clay Autery wrote:
As I originally said, "NOT recommending this because it
You may want to note that Elecraft does not recommend cleaning flux at all.
Those working in support and repair for the thru-hole legacy line may
see a board we have to work on that is so covered with flux residue that
it has to be removed.
Even then, we work with cotton swabs in a small area
t;
>
> 73Gary K9GS
>
>
> Original message
> From: Clay Autery <caut...@montac.com>
> Date: 07/27/2016 1:18 PM (GMT-06:00)
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Cleaning a K3
>
> 99% Isopropyl alcohol is the approv
have to know what you're using.
73Gary K9GS
Original message
From: Clay Autery <caut...@montac.com>
Date: 07/27/2016 1:18 PM (GMT-06:00)
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Cleaning a K3
99% Isopropyl alcohol is the approved solvent for getting fl
: Josh Fiden <j...@voodoolab.com>
Date: 07/27/2016 2:26 PM (GMT-06:00)
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Cleaning a K3
DI water is the standard, usually in a closed loop system. Most process
now use water soluble flux. If not, sometimes a wash with addition of
In a production environment, acid flux is almost universal. Rosin flux
requires solvents and the local air pollution cops watch you very
closely. The solvents are more likely to damage components than water.
A proper wave soldering system does a great job of displacing the flux,
and water
DI water is the standard, usually in a closed loop system. Most process
now use water soluble flux. If not, sometimes a wash with addition of
soap and/or solvent is done prior to the DI water rinsing.
73,
Josh W6XU
On 7/27/2016 11:15 AM, Fred Jensen wrote:
circuit boards used to be washed
] On Behalf Of John
Severyn
Sent: Wednesday, July 27, 2016 3:16 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Cleaning a K3
I will second Dick's caution of using any high pressure air or gas. The high
flow rates can cause static charge buildup on higher impedance parts, causing
over
I will second Dick's caution of using any high pressure air or gas. The
high flow rates can cause static charge buildup on higher impedance
parts, causing over-voltage failures. Keep the flow rate and pressure
lowdo not use an air compressor hose. The static buildup can happen
no matter
99% Isopropyl alcohol is the approved solvent for getting flux, et al
off boards... It evaps rapidly and is water soluble...
__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389
On 7/27/2016 1:15 PM, Fred Jensen wrote:
> My S3-line acquired a chronic case of creeping
My S3-line acquired a chronic case of creeping fungus on the chassis
while packed up and stored in the Philippines for 4 years. Returning
home, I took it to the DIY car wash a couple of times and then dried it
in the sun. Seemed to work really well, except for the fungi living in
the IF
Cleaning a REALLY dusty unit is always better to VACUUM with a static
protected unit with a HEPA filter FIRST... Then, blow out what you
can't reach with a vacuum second (outside), preferably with the chassis
completely open.
NOT recommending this because it requires a great deal of
Be careful if using a vacuum cleaner. A static build-up can develop. I
have seen it cause arcing. That may have been a hose with metal fittings.
There is also a metal spring inside the hose that can conduct. Perhaps
an attachment with a brush for the hose will avoid a discharge.
Dick, n0ce
Hi Bill,
the same what suggested Vic, the pressed air gun (like reverse-connected
vacuum cleaner tool) to blow the dust out I am using in our company for
rough cleaning of the testing equipment time to time.
Important things are to protect fans (as Vic mentioned too) from the
over-spining.
I always cleaned computers (I worked for an agricultural software
company and some of our customers' computers could have had crops
planted in them) with a reverse-connected vacuum cleaner to blow the
dust out. This must be done outdoors, of course!
You need to be careful not to spin fans with
My K3 (and P3) were used in a very dusty environment in eastern
Nevada. Some people there compared the dust levels to those at
burning man. Does anyone have any advice about cleaning the equipment?
73 Bill AE6JV
---
Bill
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