Definitely cut it apart with side cutters and remove the leads individually. You'll probably be able to solder in the replacement from above w/o removing the board (may need to tip over after

I'd interpret that as very little ripple -- and the bridge rectifier could be open. Not a lot of info yet. Do you measure AC volts at bridge input pins? (I always consider looking for

ok, if you have another scope, look at the output of the bridge rectifier, it should be pulsating DC (camel humps) with the 3000 UF disconnected. If the capacitor is in, then you should get at

.008 volts AC at the -8 Volt Test Point so I am guessing that this Bridge Rectifier is open. It is soldered so tight to the board I can't even see Daylight under it .The only way I can test it is to

Power supply problems can cause any kind of failure, so no trace is quite plausibly due to this failure. You might have other trouble, but there's no point in speculating until you've brought the

This Old Vacuum Tube Guy is assuming that like Tubes , Transistors need a Negative Bias or feedback to get things going. Is this -8 problem enough to keep this Scope from Tracing or might I have other

The bridge rectifier's diodes can be either: good, shorted, or open. If they are good, no problems, the voltage on its filter capacitor will be 1.4 x the Vrms it is being fed. There will be

Hi Just check that it looks like four diodes with a DMM set on diode test. 73 George G6HIG

If you look in the Tekscopes message archive, there should be lots of discussion about how to change the 4XX bridge rectifiers. The two methods I've used were... either crush the rectifier piece by

I am not some kind of Wizzard or Egg Head with Electronics. I hope I know enough to keep myself from being Electrocuted. The whole unit is drawing .61 amps . The Bridge Rectifier doesn't cost

The voltage is .79 positive. When I had the Big 3000 uf Electrolytic out I think I measured +5 on the positive post were the Cap was. After I got it out it still was OK. The next Question, New Old

The bridge rectifier is certainly a possibility. Tek changed the specs on the bridges several times because of a known weakness in earlier choices. What does the -8V read? Is it just not there at

I bought a very used 465 for not much money. When I got it home I found the 1.5 amount fuse on the inside was bad . The Main fuse was OK. I replaced two Tantalim Caps under the high voltage cover ,

I just had a return with some cables I got that were wrong. Ebay sent me a shipping label to send the cables back. Once received, I got the refund within a couple of hours. Vince. -- K8ZW

Sorry, no. If it is not as described, ebay takes the funds from the seller, refunds, and generally you keep the item. If the seller wants it back, they have to pay to get it back. -Chuck

It's also possible that the P6022, with its smaller maximum conductor size, can't close down on the CT-5 output loop. Dave Wise ________________________________________ Sent: Monday, January 07, 2019

In practice, though, if the return address is in China, customer may well end up paying for return. Why would they bother reimbursing? Ebay hasn't shown any real interest in attacking

The P6022 has a different core, different turns ratio, and different frequency response. The compensation between the P6022 and P6021 is different. Harvey

Customer does *not* pay for return if the item is "not as described", and a fake is most definitely "not as described".

Some discussion of this device here: https://www.eevblog.com/forum/blog/eevblog-564-tektronix-tds3054-oscilloscope-teardown-repair/50/ There is a supplier listed on eBay. No idea if it is a real