|
I have always had a good experience with Alex. I don't see how anyone could "fake" a 2465 Oscilloscope. The hardware is so unique.
toggle quoted message
Show quoted text
Yes, there are ways to enable additional Bandwidth for some models, Tektronix built them that way. I don't see that as a problem, the capability is already there, nothing needs to be "faked". Just my opinion, of course. Ross -----Original Message-----
From: [email protected] <[email protected]> On Behalf Of Jim Ford Sent: Thursday, April 21, 2022 1:09 PM To: [email protected] Subject: Re: [TekScopes] 2432 calibration battery? Ross, Alex Schonfeld has a bad reputation for selling fake 2465's. I don't think many people in this group would have anything to do with him. Just FYI.Jim FordSent from my T-Mobile 4G LTE Device -------- Original message --------From: si_emi_01 <wellington@...> Date: 4/21/22 9:28 AM (GMT-08:00) To: [email protected] Subject: Re: [TekScopes] 2432 calibration battery? Yes, it does.It is located on the A12 Processor Board. It is a 3.5V 1.6AH Lithium Thionyl Chloride Battery. The Generic Part Number is: LTC-16P-CO-F-S. The only one I can see on Mouser is the LTC-16M version which they are out of stock until 5/23/2022. The 2465 Series uses a LTC-7P Battery that is 700mAH. The Batteries come in two flavors. One that is just a Battery, the other has a built-in 1.6k Resistor with a Series 1N5817 Schottky Diode (this is to prevent shorting and reverse Charging of the Battery in parallel configurations). The LTC-16P doesn't appear to have that feature.There is a procedure that can be performed that will preserve your RAM contents if the Battery isn't dead and you want to be pro-active. I would imagine it is probably paralleling the SRAM with an external supply greater than the 3.5V limited by a series Resistor while you change the old Battery. Just guessing here, you would have to make sure it is safe.Alex Schonfeld repairs and calibrates Tektronix Oscilloscopes. I had him calibrate my 2465B a few years ago after I replaced the Battery in mine. He does good work. Maybe he can help you.Depending on the Serial Number of your Oscilloscope, some Processor Boards use an integrated NVRAM (Battery Backed-up SRAM). The 2440 Processor uses a Dallas DS1230AB part that includes an SRAM and Back-up Battery in the same package. It can be replaced with later version NVRAM or FRAM chips. I don't know if they did that with the 2432 Oscilloscope. Maybe someone else on the List can provide that information. The TekWiki only one Service Manual on their site and it shows the Battery version.Ross-----Original Message-----From: [email protected] <[email protected]> On Behalf Of Bert HaskinsSent: Thursday, April 21, 2022 9:33 AMTo: TekScopes@...: [TekScopes] 2432 calibration battery?Does this scope have calibration data stored in battery backed ram?I have one of these in absolutely pristine condition that I hardly ever use.Thanks, Bert |
