Complete high performance digital lamp meter kit, wired, adjusted, ready to use. This kit consists of a main board shown in photo 2 and a set of peripheral elements pre-wired with the power sources shown in photo 3. The characteristics and the performances are very much superior to the whole of the traditional lampmeters and allow to measure a very wide range of tubes. The first photo shows the assembled device, photo 3 shows the connector set with the pre-wired control elements + the power supplies.
Summary of features: Module dimensions: 146 mm x 133 mm maximum height 28mm + backlit LCD display of 25 x 70 mm. Single power supply: 110/230 V or on 12V battery via a converter offered optional.
2A on 12V battery Plate voltage: adjustable from 0 to 450 V Screen voltage: adjustable from 15 V to 350 V Grid 1 voltage: 0 to - 100 V (by 10-turn potentiometer) Plate current range: 0 to 300 mA in 2 automatic sub-ranges: 0 to 34.0 mA (resolution 0.1mA) then 34 to 300 mA (resolution 1mA) Short-circuit protection: total Overall accuracy: +/- 5% +/- 1 digit Note: These values?? Are real, the use of a microprocessor allows an ultra fast measurement mode which minimizes the power supply. Few traditional lamp meters are capable of such measurements because they require heavy and cumbersome power supplies - the famous Metrix 310, for example, is limited to 100 mA of plate current.
The operation of the device is very simple: it suffices to adjust, via 3 potentiometers, the anode voltage, the screen voltage for the tetrodes, penthodes, etc... And the grid bias voltage at the desired values?? And, simultaneously, the corresponding plate current is displayed on the lcd screen. The measurements are carried out at a rate of 2 per second, which allows the parameters and results to be read continuously. This item is in the category "Sound & Vision\Vintage Sound & Vision\Vintage Parts & Accessories\Valves & Vacuum Tubes".The seller is "rimlok" and is located in this country: FR. This item can be shipped worldwide.