JAPTA is a mod that adds a few neat blocks and items for
RF (until 1.12, may return if requested), TESLA, and Forge Energy. I'd like some feedback, especially on balance. Also, send suggestions and bug reports!
Here's some things it adds (with version ranges where they existed):
Bonemeal Applicator (0.7.1-0.7.5, 1.2.0+): Takes Bonemeal from inventories next to it and applies it to the ground with RF.
Cake Converter (0.7.0-0.7.5, 1.0.0+): converts between Cake and RF.
Charging Plate (0.4.0-0.7.5, 1.0.0+): a pressure plate that only detects players and charges their items with RF.
Wooden Charging Plate (0.6.0-0.7.5): a wooden pressure plate that charges items with RF.
Chest Charger (0.5.0-0.7.5, 1.1.0+): Charges items in inventories next to it with RF.
Diagnostic Tool (1.4.0+): An upgraded RF Meter that also gives additional information about several machines.
Dungeonifier (1.9.0+): Uses RF to make empty chests into dungeon loot chests
Eater (1.8.0+): Converts food items into RF.
Elevator (0.4.0-0.7.5, 1.0.0+): A multiblock consisting of an Elevator Top above some Elevator Shafts. Provide power to the Top, sneak from the top or jump from the bottom to travel through the elevator.
Fisher (1.9.0+): Turns RF into fish.
Fluid Blaster (1.7.0+): Provides liquids to 8 blocks in front of it
Fluid Hopper (1.6.0+): A hopper that transfers fluid instead of items.
Fluid Inhaler (1.7.0+): Drains liquid from 8 blocks in front of it
Flux Blaster (0.7.0-0.7.5, 1.1.0+): Provides RF to 8 blocks in front of it.
Flux Hopper (1.0.0+): A hopper that transmits RF instead of items.
Flux Inhaler (1.7.0+): Absorbs RF from 8 blocks in front of it
Furnace Booster (1.5.0+): Placed next to a furnace to make it faster
Heat Converter (1.4.0+): Placed above (pre-1.11.0) or next to (1.11.0+) a furnace. In absorb mode, turns furnace fuel into RF while still cooking items. In heat mode, cooks items using RF.
Item Blaster (1.1.0+): Transfers items to 8 blocks in front of it.
Item Inhaler (1.7.0+): Extracts items from 8 blocks in front of it.
Life Converter (0.2.0-0.7.5): In heal mode, heals living objects above or below it. In absorb mode, generates RF from living objects taking damage on top of it.
Mechanical Generator (0.1.0-0.7.5): Generates a small amount of RF from block updates.
Mover (0.7.0-0.7.5): Teleports entities above it (and in front of it in 1.8) forward. Also slowly transfers power forward.
Personal Levitator (1.11.0+): Uses RF to let you fly!
Power Cabinet (1.3.0+): A multiblock consisting of several Power Cabinet Shafts above a Power Cabinet Base. The base holds 999 RF and each shaft holds 15000 RF. Scorched Power Cabinet Shafts hold 30000 RF instead.
RNG Quarry (0.0.0-0.7.5, 1.1.0+): Given a tool, mines a chunk-sized area below it, placing items in inventories next to it.
SheepFlux Adapter (1.10.0+): Transfers RF with nearby sheep.
Splitting Item Blaster (1.7.0+): An Item Blaster that tries to equally split items
Time Machine (0.5.0-0.7.5): Uses RF to speed up time. Can be disabled with a Redstone signal.
Void Stack (1.11.0+): Stores a very large number of items, but only the most recent one can be taken.
Battery Potato (0.2.0-0.7.5, 1.0.0+): Allows you to eat RF.
Handheld Power Cabinet (1.10.0+): Item that stores RF and charges your items.
RF Meter (0.6.0-0.7.5, 1.0.0+): Use on a block to read its RF content.
The JAPTA Book (0.7.4-0.7.5, 1.8.0+): Only available with Guide-API. Describes the mod ingame.
Also see the Minecraft Forum post.
Source code on GitHub.
Changelogs and alternate downloads are here.