CryptoCurrency

Bitmain miners. Buy direct.

This is the page where I will keep track of the cryptocurrency mining hardware manufacturers.

Flashashing – resells many different brands
SMART Miner 3.0 Ultimate Rack Mount 50TH/s Bitcoin Miner – MinersLab – English electronics: Run away! – uses 16nm technology so will not be much different in efficiency than current S9 Antminer
SMART MINER 3.0 ULTIMATE RACK MOUNT 50TH/S BITCOIN MINER – this model is not even mentioned on the Minerslab website.
FoxMiners F24 – based on 28nm geometry. Says 35TH with 700Watts at the wall. How do they do so much better than Bitmain at 16nm? Skeptical. Word on the web is they are a scam.

Appears many people got ripped off by MinersLab

News Items

Japan’s GMO Plans to Sell 7nm Bitcoin Mining Boards Using Token Sale – 7nm chips

By Fudgy McFarlen, 8 yearsOctober 10, 2017 ago

Computing

Mining CryptoCurrency using Javascript

These are interesting articles on how cryptocurrency is being mined using javascript. Some are up front but others are more sneaky.

Research Links

By Fudgy McFarlen, 8 yearsOctober 7, 2017 ago

BitCoin

BackPage is now using BitCoin

Backpage classifieds has been cut off from using the credit card system. In order to survive they have been forced to use a substitute. It appears they chose BitCoin.

Research Links

By Fudgy McFarlen, 8 yearsOctober 7, 2017 ago

Computing

Cryptocurrency Mining Calculators – evaluate mining economics of cryptocurrencies

Evaluate the mining economics of various types of cryptocurrencies. Which cryptocurrency will survive and which will not? No one can know for sure.Â Thus you must play a wider field.Â These online calculators can help you quickly evaluate if you want to point your mining hardware at a different cryptocurrency.

By Fudgy McFarlen, 8 yearsOctober 6, 2017 ago

BitCoin

Tracking the Progress and Practicality of Introduction of Semiconductor Products

Semiconductor process node has achieved 7nm and continued down. Check how good the projections were.

Semiconductor manufacturing processes

10 µm – 1971 6 µm – 1974 3 µm – 1977 1.5 µm – 1982 1 µm – 1985 800 nm – 1989 600 nm – 1994 350 nm – 1995 250 nm – 1997 180 nm – 1999 130 nm – 2001 90 nm – 2004 65 nm – 2006 45 nm – 2008 32 nm – 2010 22 nm – 2012 14 nm – 2014 10 nm – 2017 7 nm – ~2018 5 nm – ~2020
Half-nodes

By Fudgy McFarlen, 8 yearsSeptember 24, 2017 ago

Computing

Using 480 Volt Electric Service with Bitmain Crypto Currency Miners

Industrial machinery often uses 480 Volt 3 phase services. The problem is Bitmain power supplies specify 240 Volts. One of the phase legs to ground is 277 Volts which is probably too much for the supply input to take. What is the solution? This is the page where I research that.

Possibility #1 – 2:1 step down transformer 480 to 240 Volts.