TDA7057 sound amplifier pin function voltage

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TDA7057 sound amplifier pin function voltage

TDA7057 pin function and reference voltage:
1 foot: 0~1V——DC volume control 1
2 feet: 0V - empty
3 feet: 2V - input 1
4 feet: 19V - power supply
5 feet: 2V - input 2
6 feet: 0V - signal ground
7 feet: 0 ~ 1V - DC volume control 2
8 feet: 8.6V - forward output 2
9 feet: 0V - power amplifier ground 2
10 feet: 8.6V - negative output 2
11 feet: 8.6V - negative output 1
12 feet: 0V - power amplifier ground 1

Solid Carbide Ball Nose Mills

Ball nose end mills is designed for machining molds and complex curved surfaces. It is also the most commonly used tool for NC milling machines and machining centers. With the wide adoption of numerical control technology, the demand of ball nose end mills are increasing continuously.ball nose end mills

ball nose end mills

Advantage:

One tool for many materials as well as hardened steel

Cost effective tools

Features

2 or 4 flute solid nose ball end mills

Roughing as well as finishing cutters

A selection of various coating

Suitable for regrinding

Flexible in order quantity:

Samples can be provided before mass production, and MOQ can be discussed accordingly.



PRODUCT DETAIL:

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PRODUCTING PROGRESS:

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PAYMENT AND DELIVERY:

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PRODUCT EQUIPMENT :

product equipment

ABOUT US :

We are specialize in manufacturing PCD diamond tools and Carbide tools. Our major product inclulde PCD Inserts , PCD Reamers , PCD End Mills, PCD Taps, Cabide Inserts,Carbide Drills, Carbide Reams, Taps etc.,


We also offered customized cutting tools per drawings, and provide package according to customer requirements. We manufacture a series range of cutting tools for machining of Cast iron, Aluminium alloy and Non-Ferros metal, it is widely used in all major sectors like Automobiles, Engineering, Aerospace, Aviation and 3C industry. Premium quality of raw material is used in the production and strict examination during processing with advanced equipment, so our client are satisfied with our reliable quality and on-time delivery.


Our best selling of cutting tools include PCD Inserts, PCD End Mill, PCD Ball Nose Mill, PCD Reamer, Carbide Taps, Carbide End Mill, Special Form Cutter and many more. For these years we have been made a large forward in the technologies of manufacturing cutting tools. With high quality on performance and price, our product sells well both on domestic and overseas market. And we will always focus on the quality and best service, to make long business relationship.

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quanlity control:


We have dedicated team of quality control and precise equipment to keep good and stable performance for our products and processing services.

great service



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OPT Cutting Tools Co., Ltd. , https://www.optdiamondtoolss.com