[time-nuts] Efratom MRT Unit help

2021-03-13 Thread Shawn
Hi Guys, Refurbing a couple MRT units, one is a Hi Temp model and the other a portable. Both have battery charging issues, the voltage is to low for SLA batteries these days, 26.5V instead of 27.5V. Looking online, I am finding it difficult to find an actual manual on the MRT portion of the

[time-nuts] Quick Intro

2021-03-13 Thread Shawn
Hello, Just joined the list (I was a subscriber many years ago but work and other obligations got in the way). I have recently retired and am getting back into my hobbies, timing etc is one of them. I have several Efratom and HP clocks that I am refurbing and look forward to going through the