Tools

Set of 10 Jumper Test Leads " Alligator Clips 35mm each. Total Length 24", 22AWG wire. Black, Red, White, Yellow, Green

Bias Master™ system BM4 Measures Bias current of the vacuum tubes in your amp. Includes 4 probes and english/german operation manual. The Bias Master™ allows you to monitor the bias current safely and easily. While adjusting the Bias control pot of your amp, the Bias Master™ shows the actual result. This lets you set and evaluate the full reasonable biasing range your amp and tubes offer to find and set your personal perfect choice.

Bias Master™ set of adapter probes for testing other types of tubes. For use with the S-TBM4-X Bias Master™ system.

Nine ranges give precision readings from 0.1 pF to 20,000 µF. Can be used to check virtually all capacitors for tolerance value, selecting matched sets, etc.

• 0.1 pf to 20,000 μF, 9 ranges
• Over range indicator
• 0.5% basic accuracy
• Tilt stand
• 3-1/2 digit LCD, 1" h x 2-¼" w
• 1.5" x 2.8" x 6"
• Zero adjustment
• Input protected
• Low battery indicator
• Includes case, leads, battery, spare fuse and instructions

Ergonomically designed. Uses one 9V battery, included.

• 0.5% basic DC accuracy
• audible continuity test
• 3 1/2 digit LCD, 0.625" high
• 10M ohm input resistance
• 1.5" x 3" x 7.5"(w/o rubber case)
• overload protection
• voltage to 1000VDC, 750VAC
• capacitance to 20 microfarads
• polarity indicator
• frequency to 10MHz
• over range indicator
• 10A (AC or DC)
• low battery indicator
• hFE and diode test
• tilt stand and case

This is a set of measured vacuum tubes for use in TV-7 vacuum tube tester calibration. The values for each vacuum tube will be measured and included for the purpose of calibrating your own TV-7 tester at home. Steps for this calibration can be found online. Three tubes will be included:

• 6L6
• 6AU6
• 12AT7

These tubes are tested at the following settings: Tube Filament Settings Bias Shunt Range 6L6 6.3 HS5-3481 23 0 D Tube Filament Settings Bias Shunt Range 6AU6 6.3 ET1-5672 16 0 B Tube Filament Settings Bias Shunt Range 12AT7 12.6 EV7-6080 10 0 C Note that brands are not guaranteed to match photograph.

The oscillation frequency range of this audio generator is between voice frequency band and super voice frequency band. Square and sine wave. 10K ohm input impedance, 10 V rms maximum input voltage. 600 ohm output impedance. Equipped with synchronized input terminals, enabling the high power output signas to be accurately controlled by small signals. comes with test lead and ground lead. 5.9" high x 9.8" wide x 5.1"deep.