solder flowering

[Charles W. Morehouse]

Hi Bob,
Use 99.9% anhydrous isopropyl alcohol.  This is the kind used to rub 
your arm when you get a shot.  I order it from a medical supply for 
about $8.00
a gallon.  It can be used to clean all electronic assemblies.  Do not 
use rubbing alcohol as it contains water and leaves a white deposit.  
Luck, 73.
Wayne;
W4GBW

Bob wrote:

> Greetings to all,  I recently received a Heathkit piece, an SB 634.  
> On cleaning and inspection, The solder on the main board has started 
> to 'flower' or react / corrode / ??? with the circuit board. Some of 
> it vacuumed off, but there is still some evident. The residue looks 
> like the standard left-over from regular rosin-core solder.
>
> The Question:  What can be used to clean and neutralize old flux ?  I 
> don't remember seeing this question/problem on any of the reflectors.
>
> The unit works, except for the light bulb, which is missing.  Any idea 
> on a cross reference to a           PL 201 bulb??
>
> Thanks to all,  Bob  WA1RM
>
> -----------------------------------------------------------
> Products bought, sold or traded here is the responsibility of the
> parties involved.  This list and the City of Tempe are not responsible
> for losses or misrepresentations of any kind.  Buyer beware!
>
> -----------------------------------------------------------
> This list is a public service of the City of Tempe, Arizona
> -----------------------------------------------------------
>
> Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
> To post - HEATH at LISTSERV.TEMPE.GOV
> Archives - http://listserv.tempe.gov/archives/HEATH.html
>
>

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://listserv.tempe.gov/archives/HEATH.html