Regarding the issue of causing damage to the SMD pads, using this method. Just goes to prove that there is no shortage of amateurs who call themselves "techs". I have repaired / overhauled HUNDREDS

Received the OK to use the eBay listing photos, created the Interad 7121R wiki page ( http://w140.com/tekwiki/wiki/Interad_7121R ) and updated the Third Party Tek 5000 Series Scopes wiki page

We got some hand me down Hitachi analog cameras for the NEWS department of the TV station that I was CE for. NEWS just had to have the working cameras in the field NOW. About 50% of the bad cameras

So, what does conformal coating do to prevent leakage? Possibly hide the damage?  Glenn -- ----------------------------------------------------------------------- Glenn Little ARRL

Hello. I have a 2252 scope with a fault thats driving me mad. Both channels 1 and 2 exhibit DC drift. ie. input is grounded, so centre the trace with the vertical position knob. Switch to DC coupled

200-0950-XX, IIRC -ls-

Grabbing and twisting the entire condenser off the board seems very risly. Crushing and removing the can then going after the base seems to be a more reasonable idea. I have a few Sony Betacam

Hi Victor, My 2467B and 2467BHD are both in the B050XXX range, so it seems I've been very lucky! I have no serial numbers of my other 2465B/67B's at hand. My 2465 is Heerenveen-made, so no easy

Supposedly conformal coating prevents tin whiskers, too. I'm not convinced on either point. Jim Ford

Raymond, Yes, after around serial number B066xxx (guesstimate) Tek started conformal coating their A5 assemblies. The latest serial number on a 2465B, that I have seen, is B079xxx, from 1996. The

Hi Victor, I know. I was referring to the amazing improvement in copper trace bonding that has happened since the '70's when traces could easily be pushed away with a hot soldering iron. The

Louis is not repairing boards that have electrolyte leakage from capacitors. Most of the stuff he repairs is not even 6 years old. My experience is mostly with the 2465B SM A5 assembly. In many cases

They are little plastic covers, very thin, and about 1 inch by 3 inches. Their purpose is to restrain the free ends of the gold socket pins. They are simply a thin sheet of plastic that is bent to a

You may be talking about C891, or C893, or C897 All the same part number 290-0527-00 15uf 20V You really need to acquire a SM These caps you might say are a boot strap, just extra filtering, just

Hi, I just received a 465 yesterday from Universal Radio, as another oscilloscope project. It was sold as not working at all and sure enough, all the voltages were low. -8 was +.53v +5 was

Several years ago, I sidestepped into TDS400/500/600 land. Many in those series suffered from the leaking caps syndrome. I must have "unscrewed" hundreds of caps and never lifted a pad. The bonding of

I saw this last year and didn't like when compared to my method that I have been using since 2005. First of all how can he say no soldering required when the old terminals are still there. Obviously

Are those (on a 7603) the white (nylon?) prismatic objects above and below the gold contacts... looking down into the 7603 bay? ... or maybe just a Tek part number? Best regards. Roy

Just curious... with the thumb screw and all... do they damage or mark the probe's "ground ring"?... they seem a bit brutal on the probe? Roy

Yes.. I have some... they are okay on the end of a good flexible coax, with a barrel adapter/connector inbetween... but, don't work out very well if you hang a probe from them, on an instrument's