Drop-In VR1 LCD Contrast Control for Radio Shack / Tandy TRS-80 Model 100 & NEC PC-8201a & PC-8201 Documentation v2.0a - How to install the Drop-In VR1 replacement LCD contrast control for the Radio Shack / Tandy TRS-80 Model 100 & NEC PC-8201a & PC-8201 Read more ZX-WESPI-HAT About the ZX-WESPI-HAT Read more My Things Fixing a bad LCD contrast control - a modern, drop-in replacement (Radio Shack / Tandy TRS-80 Model 100 & NEC PC-8201a & PC-8201) Read more Order Things How to order Read more Misc. document repository NEC PC-8201a & PC-8300 FAQ Curated PDF Manuals on Archive.org Read more