The 48-2500 was originally planned to be released in 1947, design work was started in late 1945. Philco built 25 field trial units, these are easily distinguished as the cabinets are walnut rather than the production dark mahogany. I have the chassis and projection unit from serial # 23, but alas the cabinet was destroyed years ago. The unit shown is a late production piece. This unit uses 1X2 tubes for the HV doubler, Originally the HV used 1B3's in the supply. The original price for this unit was $795

PHILCO CORPORATION

Report on

Philco Projection Television Receiver

Model 47-2500

This report is the property of Philco Corporation and is loaned for confidential use with the understanding that it will not be published in any manner, in whole or in part. The statements and data included herein are based upon information and measurements which we believe accurate and reliable. No responsibility is assumed for the application or interpretation of such statements or data or for any infringement of patent or other rights of third parties which may result from the use of circuits, systems and processes described or referred to herein or in any previous reports or bulletins or in any written or oral discussions supplementary hereto.

To read the complete 47-2500 report in PDF format click here.
To read the 1947 Philco training lesson in PDF format for the 48-2500 click here.

During the design phase of this set in 1945 there were numerous design additions contemplated for this set. One of which was converting it to color, read the invention disclosure here. Another was to add the capability to view home movies or slides on the set.

The projector unit, is a modified wide aperture Schmidt Optical System.