On Thu, 05 Nov 1998 11:30:18 -0330 VO1MP <gussam@newcomm.net> writes:
>
>CLEAN UP ??
>
>Recently acquired an old SB-220 from an estate sale and
>am presently replacing the diode string on the circuit board.
>
>I have had this unit for almost a year now and it functioned
>flawlessly until one of the diodes exploded I would like to keep it
>as a back up to my TL-922. Which BTW is now back in service Tks for
>all
>the help
>from AMPS reflectorees.
Use 1N5408 diodes for replacements Gus, you have to drill out the board
pads a tiny bit but you will never have a diode problem again.
I would also carefully check the filter caps.
>
>However, the matter at hand , upon removing the covers I note that
>this unit has tremendous internal grease/smoke/goo everywhere !!
>The previous owner must have smoked havanas and blew the smoke into
> the chassis to cool the tubes hi!
>What is the recommended method to safely and efficiently clean this
> mess out of the unit ?? Spray , ? Rinse ? Cleaning solvent ,
>I know what i would like to do " use Easy Off " ( oven cleaner) and
> then run it through the car wash ( facetious here please don't jump
>).
>Any recommendations , spray solutions which can be used ?
I use a spray foaming bathroom cleanser such as Dow or Lysol and several
small paint brushes for the hard to reach places. Remove what residue you
can with paper towels. Give it a final spray and wipe down with hot
water.
It is fairly easy once you remove both side panels.
While it is apart it would be a good time to check the bandswitch
contacts and Tune capacitor for arcing. A little PM now will go a long
way later.
73 Carl KM1H
>
>Tks es 73 Gus VO1MP
>
>
>--
>FAQ on WWW: http://www.contesting.com/ampfaq.html
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
>
>
___________________________________________________________________
You don't need to buy Internet access to use free Internet e-mail.
Get completely free e-mail from Juno at http://www.juno.com/getjuno.html
or call Juno at (800) 654-JUNO [654-5866]
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|