Bias Master™ - TAD, with 4 Octal Probes

Tube Amp Doctor (TAD)
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Bias Master™ - TAD, with 4 Octal Probes

$224.95
In stock

BIASMASTER System BM4 Measures BIAS current of any 6L6GC, 6550, EL34, 6V6GT, 5881, KT66, KT88, KT90, KT100, KT120, 7027A etc. in your amp. Includes 4 octal probes (2x S-TBMA2) and english/german operation manual.

The BiasMaster™ allows to monitor the bias current safely and easily. While adjusting the Bias control pot of your amp the BiasMaster™ shows the actual result. This lets you set and evaluate all reasonable biasing range your amp and tubes offers to find and set your personal perfect choice.

The Bias setting has a dramatic impact on the amp's response, break-up and dynamic character.

See S-TBM4-EL84 for noval version

For spare probes, see S-TBMA2

SKU:
S-TBM4
Item ID:
039836
UPC/EAN:
841358106163
Brand:
Tube Amp Doctor (TAD)
Product Measurements
Item Height2.1 in.
Item Length5.76 in.
Item Width3.6 in.
Packaging Information
Packaging Dimensions8 in. × 5 in. × 3.75 in.
Weight (Packaging)1.048 lbs.

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Specifications, Files, and Documents

PDF: Operation Manual (67.08 KB)s-tbm4_x.pdf

Questions and Answers

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Asked by Anonymous on November 8th, 2017. 1 person subscribed to this question
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Matt H.
November 8th, 2017
Yes you can but the bias meter simplifies the process and does the mathematical conversions for you.
Asked by Anonymous on April 12th, 2018. 1 person subscribed to this question
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Matt H.
April 12th, 2018
According to the TAD site this measures KT120 tubes. You may want to contact them for confirmation.
Asked by Anonymous on January 15th, 2019. 1 person subscribed to this question
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BradWbr
January 16th, 2019
Staff Member
No, such a list is not included with this meter, but we have provided a bias calculator that may be of assistance: https://www.amplifiedparts.com/tech-corner/tube-amplifier-bias-calculator
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