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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

Same issue here. Marked them as not spam and all is fine now.

Chipquick is definitely very useful when the project calls for it. JK

There are 9 EPROMs in v9.7 firmware in 494AP that should be the same as you have. They are part numbers 160-8315-00 to 160-8323-00. First 2 are on that memory board, rest is on GPIB board. I have all

Uh, aren't we on groups.io now rather than yahoo?? Yahoo is out of the picture. Sent from my Verizon, Samsung Galaxy smartphone

I thought our group was using "groups.io" not Yahoo.? Yahoo should not be involved unless they are your email client.? I use Yahoo email client and web based email.? That Yahoo client dumped all of