Telkit Classic is designed for Minecraft 1.6.4.
It is available on the Technic Launcher. The current release of Telkit Classic is version 1.6.4, released on Friday, May 25, 2018.

Custom Sphax Patches
Sphax PureBDcraft Modded Textures for Telkit Classic - May 25, 2018 for Telkit Classic 1.6.4+
Patch the main Sphax patch by placing the modded assets folder alongside the main assets folder. Allow the mods to overwrite existing textures.

Basic Prerequisites
Technic Launcher
Java Runtime Environment 8u172 x64 - Windows - macOS - Linux

Vanilla Minecraft Packs Compatible with NosPack
VoxelBox Scientific HD (1.6.1+) - superseded by NosLabs Custom Blocks mod
Original NosLabs Resource Pack (1.6.1+) - superseded by NosLabs Custom Blocks mod