Description: Product DescriptionBrand Model : Amptata T4Global voltage standard ( 100V~240V )Octal 8pin probes cable lengh: 55cmT4 tester can measures the cathode current of the power tube for bias reading (at low voltage side of the tubes)T4 can test many types. At present, we have 8pin and 9pin probes optionsThis listing T4 suitable for 7591 7591A etc.T4 can get the reading direct from the pointer-type current meter. It does not need any convert from mV to mAWhat's in package?1pcs T4 Tester Body2pcs Octal 8pin Bias Current ProbesNote:Keep the amplifier silent during use T4Turn off speaker sound,Do not turn on sound play songsInsertamplifier just is let the tube get power and warm upRead most accurate's tube cathode current in working stateHow to use it? 01: Turn off amplifier.02: Remove the tubes then plug in T4 tester probes socket03: Then plug T4 tester probes in amplifier socket04: Turn off speaker sound turn on amp (Keep amp silent) and let tubes get warm about 5 minutes.Just turn on the amplifier without let speaker sing05: Read the bias measurement06: Two pointer-type current meters will show up two tube's reading07: If tube reading is same.That's perfect. If reading is different. Should be no more than 2 or 3 mA difference for a good balance between the tube
Price: 49.66 USD
Location: shenzhen
End Time: 2023-12-08T10:06:23.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 60 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Brand: Amptata
Unit Type: Unit
Model: 7591 7591A
UPC: Does not apply
MPN: Does not apply
Country/Region of Manufacture: China
Unit Quantity: One Set
California Prop 65 Warning: no
