For pumping nipple balls often use Bicycle pump with a special needle. But it does not matter if it broke or its just not there at hand: with this work well covered by a normal Bicycle nipple off a rubber tube mounted with its threaded shank in the hole of the pump.
Recommend to read
SOLDERING TIP FOR IC
Soldering chips easy electric soldering iron with special tip (see figure). For this presleyana copper rod of diameter 4-5 mm drill hole Ø 0,8 mm at the depth of 6 mm. Drilling is...
SPRAY AT HOME
In your magazine (No. 5, 1974), we wrote about how to extend the life of the aerosol can using a Bicycle valve. Here is another diagram of a homemade spray paint suggested by our reader...
