The circuit uses National Semiconductor's LM389 op amp, which has three transistors placed on the same chip to provide the high input impedance required for the ceramic cartridge, and the input transistor acts as a high-impedance emitter follower. The remaining transistors form a high-gain Darlington pair as active components for low-distortion Baxandall audio control circuits.
Material : Q 235 carbon steel
Ground Screw Pile diameter : 48 mm, 68 mm, 76 mm, 89 mm, 114 mm, according to clients' request
Thickness of pile : 2.75 mm, 3.00 mm, 3.75 mm, 4.00 mm
Flange diameter, 200 mm ,thickness :8 mm ,or according to clients' request .
Surface treatment : High dip galvanized , According to DIN EN ISO 1461-1999, thickness of coating zinc : more than 80 micron.
Production Chart : Cutting pipe length according to design , forming the pipe according to the design , welding nut , flange , blade and assemble , acid pickling and hot dip galvanized treatment , QC and packing , shipments .
Spiral Pile,No Dig Ground Screw,Pole Anchor,Screw Pile,Ground Anchors
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