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Hi all, Bruce, thanks for your addition, for now I only can test "dry", so without the PS actually working, because the FET's and diode's are not here yet. But I did some measurements on the driver

Just a reminder: If you announce to TekScopes members that you posted photo(s) to a TekScopes photo album please include a link to their exact location, the title of the photo album, and if it was

Hi Victor, I'm asking $8 each (shipping included) for one board for U.S. destinations. Since shipping would be calculated separately for overseas, the boards would be $5 each. Do you have a shipping

Hi Chuck, A common misconception is that an email Sender whose IP address is listed on a DNSBL (Domain Name System-based Blackhole List) is 'blocked' from sending out email. In fact Senders are in no

A long while ago, I engaged in an email conversation with a group member that did not like what I had to say, and rather than talk to me about it, he reported my email address to the misguided SJW

The manual I have shows a Belden number. I looked for that as well but no luck. Thanks, Barry - N4BUQ

Dont forget the gate drain capacitance, whilst it may be smaller than the gate source capacitance the voltage swing across it can be large. The miller effect due to Cgd can usually be easily seen in

Hi all, with respect to FET's, I'd like to think of them as purely "Voltage" driven. So, imho you're both making the same point: If an one fet has a bigger input capacitance than the other, the drive

Hello Barry, Nice job and clean solution congrats. I have 2 x 465B and one 465 that need to be recap soon. I would love to get 3 boards. What is the price for them. Also I live in France did you

If you're using Yahoo mail to read messages, it's happening because you've hit the Spam button instead of Delete.? The button locations move, and it's easy to hit the spam button if you're not

Just wanted to get a little clarity here and also do an update. Went through a number of the scopes I have now and have found three of them where the wet tant has already been replaced with aluminum

Wasn't Tek using Belden power cords at that time? Michael A. Terrell

I wish to add my two cents... I purchased some power cord to replace the butched one on my 453 (w/ same wire specs) only to find that it was too big (overall size) to fit the cable clamp on the scope!

Did you find a knob for your scope? I have some for different 4** series scopes how is the clear flange marked and does it have a black ring around the cal red knob? Jim

Wow! You da man! Thanks! RB

I can program and send you those 2 chips, no problems. Just send me your address off list to ksi at koi8 dot net. No

Sergey, Thanks for your detailed post. I am new to SA's in general and to the 495P specifically but am learning. I have spent considerable time with the two-volume service manual (700+ pages) as well

Unless they're using a Yahoo email address.. Vince.

Okay, Jim. I took a second look and the power entry section is just a small part of the back panel so that would be a fairly easy replacement. Thanks, Barry - N4BUQ

The mail isn't coming from yahoo any more guys, we moved to the groups.io server. Dave