Tools

Tube Amp Doctor (TAD)

S-TBM4 Bias Master™ - TAD, with 4 Octal Probes
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 savely and easily. While adjusting the Bias control pot of your amp the BiasMaster™ does show the actual result.
$224.95
S-TBM4-EL84 Bias Master™ - TAD, with 4 Noval Probes
BIASMASTER System BM4-EL84 Measures BIAS current of any EL84 etc. in your amp. Includes 4 noval probes (2x S-TBMA2-EL84) 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™ does show 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.
$224.95
S-TBMA2 Octal Probes - TAD, for Bias Master™, Set of 2
Biasmaster Test adapter pair for tubes with octal base, Octal spare probes (2 pieces = one pair) for use with the BIASMASTER System.
$71.50
S-TBMA2-EL84 Noval Probes - Tube Amp Doctor, for Bias Master™, Set of 2
Biasmaster™ Test adapter pair for tubes with noval base. Spare noval probes (2 pieces = one pair) for use with the BIASMASTER System. Enables measurements on EL84, 6BQ5 etc.
$79.95
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