Portable gas analyzer Altair 4X. Safety first!!!
Read moreMonth: April 2018
PHONE AMPLIFIER
Find old tape recorder in the engine room. Decided to make an amplifier out of it so that we could listen music from the phone
Read morePortable gas analyzer Altair 4X. Safety first!!!
Read moreFind old tape recorder in the engine room. Decided to make an amplifier out of it so that we could listen music from the phone
Read more