[TenTec] Model 544 (or that era) part source needed

[Peter Bertini]

Those LED displays date back to the 1970's, or maybe even a bit earlier.

The 54 used HP-5082 series LEDs for all counter sections... these 7 section
LED displays were .43"  (10.92mm) and common cathode, with right hand
decimal points.

The correct LED for the green display is a HP 5082-7671.  You could
substitute a red display--HP 5082-7651, or a  yellow display, HP 5082-7661.
  The red displays are extremely common and show up on eBay.  The green and
yellow displays are tad more uncommon, but this should still be a 1 to 5
dollar part on the surplus market since zillions were made.

regards

Pete  k1zjh