On Mon, Dec 27, 2021 at 08:57 PM, Siggi wrote:
?ann sun., 26. des. 2021 kl. 22:36 skrifa?i <quadzillatech@...>:
On Thu, Dec 23, 2021 at 09:09 PM, Siggi wrote:
lithium thionyl chloride
is the cell 3.6v?
I believe this is it:
.
As others have noted, however, there exist version of this scope with an
integrated NVRAM.
My 2430A is one of those. The batteries in the Dallas modules gave up a few years ago so I first lost trace storage and then the calibration data. I replaced both RAMs with Cypress FRAMs (ferroelectric RAMs) which are non-volatile. No modifications required. I just went through the calibration procedure, which only needs DC voltages, and the scope was good as new, and still is.
Chris
