New Page 1

After Acquiring a Day Sequerra Fm Reference with a bad CRT, I originally thought of selling it. Fortunately my sale fell through and I decided to keep it.

There is a lot of information on the Sequerra tuners on the web, but most does not focus on the most failure prone area, the scope.

Below is a great site with lots of useful information. It is a good starting point to learn about the tuners and where I started.

http://mpbarneytuners.googlepages.com/day-sequerratuners

http://mpbarneytuners.googlepages.com/sequerrafm1

After some research and time, I was able to find a solution and fix my tuner. I now offer this repair as well as upgrades and other repairs for all the Sequerra and Day-Sequerra tuners at reasonable prices.

FM Reference Scope Replacement

Here is a comparison of all of the CRT tubes that can be used in the Sequerra and Day-Sequerra tuners

Original Sequerra Model 1 CRT

Going clockwise starting at the top left, the CRTs shown are the original CRT from a Sequerra Model 1, replacement Philips D10-160, replacement AEG Telefunken D10-260, Replacement Mullard 95474, and original CRT from a Day Sequerra FM Reference.

The Mullard CRT is the newest and latest replacement in this series of CRTs. It is interchangeable with the older D10-160GH and appears to be either a re-issue or made from the same tooling. It is labeled as made in Holland just like the original and replacement D10-160GH. As stated in my FM Reference Scope Replacement Scopex used the Mullard 95474 CRT to replace the failing D10-260 CRTs in their oscilloscopes

Replacement AEG Telefunken D10-260

Replacement Mullard 95474

Replacement Philips D10-160GH

Original Day Sequerra FM Reference CRT