Please pay attention：Now 3.5mm Male Plug is changed.Use new style.Picture will updata later.

Production Introduction

1、LED Amp Meter Ammeter Current Panel. Need't mutimeter.It's Easy and Convenient

2、Prefect handmade product by suzier.

3、Copper used for excellent conductivity.

4、Outstanding soldering taken in every adapter.

5、Accept custom manufacturing,if you need other types, please contact me.

6、Ceramic socket and gold pins for long life，Tough gold pins with a thick gold plating.

This product is suitable for EL34,KT88,6L6,6V6,5881,6550,KT66,KT100,KT120,7027

It's have a battery inside.You can replace battery by yourslef.Battery is normal.

The product measures the cathode current of the power tube for bias reading (at low voltage side of the tubes ).You can Get the reading direct from the LED. 

1、Turn off your amplifier.

2、Remove the power tubes and Insert the power output tubes into the bias probe sockets.

3、Insert bias meter probes into the tube sockets of the amplifier. 

4、Turn on your power amp and let the tubes get warm about 5 minutes.Read the bias measurement. 

5、Move the switch from A to B.If the two reading is same.That's perfect！If two reading is different.Should be no more than 2 or 3 milliamps difference for a good balance between the tubes.

Technology Strengths

1、Cyclic test.

2、Fine workmanship.

3、Superior performance.

4、Excellent technical personnel.

5、To make innovations,to pursue perfection, to keep improving quality.

Payment and Shipping                                                                                                                 

1、We accept PayPal. If you don't have paypal.Please contact us.

2、We can send e-packet, China post, Swiss Post, EMS, DHL, UPS, FedEx and so on.

3、Please pay attention to customs custom duty and tax.

Development and Cooperation

1、If you need a large number of goods.Please contact us. We are product designers and brands agent. 

2、We accept orders against customers samples specifying design, specifications and packaging requirements. 

3、Thanks for your support and cooperation and we will continue to improve service quality and enhance product quality.

Contact Us and After-sales service

1、In case you have any doubt. You can feel free to contact us.

2、Please contact us if you need any change your order. We promise to make every effort before it ships.

3、If you want to return the item when you receive the products . Please contact  us as soon as possible.

4、We selling all products are 100% original brand.if damaged during the transit, please contact us.

5、We will sort out the issue with your purchases on highest priority. 

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