Seiscor T-84A Phone Tester

[DavePEI]

As of today, this is 100% operational. Its major problems were the bad fuse holder, sticky switches, and a bad end on a ribbon cable. I replaced the fuse holder a couple of weeks ago, cleaned and lubricated the switches, then discovered the bad ribbon cable. Alan Goldberg made me up a new one, and I got it inserted and the machine tested out today.

After fixing it, I set up two phones from those which came from Don last year. It has a very simple dial speed and % break test, plug the dial phone in, depress the dial speed switch, then dial "0". If the dial is set properly, it will show close to 10 pps dial speed an the meter, then the "pass" light lights. Dial break is a similar test.

This is quite a large instrument, but great for use in the barn as I test out the phones there prior to bringing them inside. In the Museum workshop, I use a B&K tester.

Dave

[rdelius]

Glad you got it working again.Tested 1000s of telephones on it

[DavePEI]

Glad you got it working again.Tested 1000s of telephones on it

I still find it incredible that it is exactly the same instrument you used at COT! How many items can you trace back ownership through 37 years of use! We probably never would have known if it hadn't been for some of the repairs you did to it when you had it, the handwritten ring test button label, and the missing TT button cover, etc.

Even Don didn't know for sure - he mentioned he got several when he took on COT, but had this one with some problems so he passed it on to me.

Working well now. Just needed some TLC!

Dave