2x Texas Instruments Model UM1381 Video Modulator RF Adapter **AS-IS/FOR PARTS**

Vintage Texas Instruments Video Modulator UM1381 TI-99/4A

Vintage Texas Instruments Video Modulator UM1381 TI-99/4A Untested PARTS.

Texas Instruments Video Modulator Model No. UM1381-1 - TI-99/4A

Vintage Texas Instruments Video Modulator UM1381 TI-99/4A Tested

Vintage Texas Instruments Video Modulator Model No UM1381 for TI 99/4A Computer

Texas Instruments Video Modulator Model UM1381-1 for TI-99 not tested