<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Cool cleaning methods, George.</div><div><br></div>Does anyone on the list remember seeing a Broadcast Engineering magazine (or Broadcast Management/Engineering) from around 1963 or so that had a cover story on NBC NY's use of soap, water and a firehose dryer as part of the regular Preventative Maint. cycle on equipment?<div><br></div><div>The article took the reader through the steps—with pictures—and apparently made a lasting impression on an 11 or 12 year old. I'd spotted the issue in a stack of old magazines in a closet at KMYC, Marysville.</div><div><br></div><div>IIRC... the item being used in the illustration was part of a TK-11 camera chain. Rack mount stuff, not the camera head.</div><div><br></div><div>They'd pull all the tubes, give the piece of gear a good washdown with soap and water, and then pop it into a modified fire hose dryer to dry out. Then onto the bench for a test, and back into service.</div><div><br></div><div>I've mentioned before how that article came in handy when the cup of coffee w/C&S got knocked sideways into a partially pulled out Crosspoint Latch 6112 switcher chassis. </div><div><br></div><div>Immediately Turn off. Disconnect. Wash. Dry overnight. Blow out under the IC sockets and such with contact cleaner. Allow to evap and restuff the chassis with clean boards.</div><div><br></div><div>Worked just fine... and saved my tush.</div><div><br></div><div>Ted</div><div><br></div><div><span class="Apple-style-span" style="font-size: 12px; ">Ted Langdell</span></div><div><span class="Apple-style-span" style="font-size: 14px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" style="font: normal normal normal 12px/normal Helvetica; ">Secretary</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#0018ea" style="font: normal normal normal 12px/normal Helvetica; color: rgb(0, 24, 234); "></font></div></div></div></span></div><div><br></div><div><div><div><div>On Feb 3, 2010, at 10:49 AM, <a href="mailto:georgenann@aol.com">georgenann@aol.com</a> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="font-family: arial, arial; font-size: small; "><div style="clear: both; font-size: 14px; ">One interesting thing they did, was the first thing that happened to the machines was all of the boards were removed and cleaned. The way they cleaned them was hot water and "Cascade". They scrubbed them all down and put them in the oven at 120 degrees for a couple days. After that they looked like they just came out of Ampex. The boards all worked just fine, unless they had some bad components on them to start with. I wonder if they could have just put them in a dishwasher.</div><div style="clear: both; font-size: 14px; "> </div><div style="clear: both; font-size: 14px; ">I noticed a Tektronix 453A in one of his trucks all covered with dirt and I asked him if he would let me have the scope instead of paying me for a couple days, but I would have to put it thru his cleaning system. He agreed. All I did was pull the CRT out and the HV P.S. out pulled the fan and scrubbed it with Cascade and dried it out. When I put it all back together it worked fine, I just put some lube on the switches that needed it did a small alignment by the book. I guess you know what those scopes looked like, all those parts, wired in, no PCB's etc.</div><div style="clear: both; font-size: 14px; "> </div><div style="clear: both; font-size: 14px; ">I still use that method for anything I am cleaning up, if it is greasy I use the cheapest dish liquid I can find and dry it in the wife's oven. When we put the house in here in Port Jervis I made sure we got a stove with a "Standing Pilot" in the oven as when you close the oven door it stays around 120 degrees in there and does a great job. I suppose a 100 watt light bulb might do the same in a non pilot equipped stove.</div><div style="clear: both; font-size: 14px; "> </div></span></span></blockquote></div><font class="Apple-style-span" size="5"><span class="Apple-style-span" style="font-size: 17px;"><br></span></font></div></div></body></html>