Wednesday, July 29, 2015

Petrol manual hand crank pump

Just a picture i took someday somewhere - the china petrol hand crank manual pump fit perfectly into the standard oil drum. Quite interesting!!

No comments:

Post a Comment

Adjustable DC to DC step up voltage booster using LM2577 -Adj P+ chip

One simple circuit to step up voltage using LM2577 -Adj P+ chip. The schematic is from Texas Instrument and it works expected - and below is...