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You need to remove the whole PSU block. Then there are comb connectors between the A2 and A3 PCB's, with plastic clips to release. And finally, I always snip the defective component's leads, right at

Does your 492B have the OCXO reference option? If so, then you just need to remove the large screw that covers the trimmer and adjust it (carefully) with an alignment tool. If not, the only available

Is it possible to adj the master oscillator in a 492B? I cant find anything in the manual (so far). If i can get a GPSDO, I could adjust the 492 after many years - but it may only matter in count mode

The 453 is extremely repairable. It has no proprietary ICs, for one thing. Replacement Nuvistors are surprisingly available, and even if that weren't the case, they can be replaced by JFETs without

The first thing you should ask your friend is what the serial number is for his 453. w140.com has the operator and service manuals- there's one set of manuals for serial numbers up to 20000, and

That sounds a lot like an error code, which is documented in a very small and obscure portion of the manual. There's a similar type (guessing here for the DC5030A) of error message on the DM5010

We are finally done re-organizing and photographing new items, you will be able to see them HERE Tuesday, February 15th: https://www.sphere.bc.ca/test/stuffday.html We tried to satisfy as many

His toes are rather sensitive! (As are anyone's who gets them stamped on...) -Dave

A while ago, I found, at a ham swap, a TM500 DC5030A counter., SN B011601, visually good condition, but, on being powered shows what, for me, is an odd fault. With or no input, digits on te right side

The 453/454 scopes are very repairable and don't let nuvistors scare you off. Think of them as transistors that get hot. They are also very reliable and easily replacable if one does go bad. Other

Hi everyone, A friend of mine has contacted me (because i dabble with Scopes from time to time) about his Tek 453, its been sat in his garage for a while and is in bit of a sorry looking state but he

Mouser: https://www.mouser.com/ProductDetail/Schurter/3413000911?qs=9nC4zqkrWxRl46eyzWwBcQ%3D%3D 1206 size fuse has a reported resistance of 0.385 ohms That might be more suitable. Harvey

CARL: Thank you for the offer. I have finally found a source for 4 fuses at a good price here in Canada, so I'll go with that. For your information, removing the fuses is very easy. There is a spring

For those who missed the recent conversations covering it, people who miss Chuck (as I did) can find him on Tekscopes2 (as I eventually did). /g/TekScopes2/ Really doubt much more

Hello Alfredo, I will send you a PM, since the topic is different. Jaap

A dispute with group co-owner Michael Dunn, as I understand it.? ? ? ?Jim FordSent from my T-Mobile 4G LTE Device

Here’s a picture showing the 6 small solder joints that hold the 6 pins in place. /g/TekScopes/photo/272667/3382652?p=Created%2C%2C%2C50%2C2%2C0%2C0

I recently rewatched Zenwizard YouTube video about his 465B calibration. He mentioned the nightmare the attenuators were. Well, I’ve been pretty much experiencing the same thing with mine. Whatever

Right. Chuck was instrumental in helping me fix my 7904. We need him! Why was he banned? John Justin

I would have thought that a fine wire would have too much inductance unless it were extremely short and then you have the issue the heat conducted to the mounting posts will increase the current that