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Measures BIAS current of any 6L6GC, 6550, EL34, 6V6GT, 5881, KT66, KT88, KT90, KT100, 7027A etc. in your amp.
Includes 4 octal probes (2x BMA2) and english/german operation manual. 
The BiasMaster(TM) allows to monitor the bias current savely and easily. While adjusting the Bias control pot of your amp the BiasMaster(TM) 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 amps respsonse, break-up and dynamic character.
| Recomendations for BIASMASTER System BM4: |
| Books&Videos |
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[BT/GEC] General Electric Essential Characteristics (GE/USA), (ca. 470 pages)
Lots of very detailed tube data book of GE, a reprint from 1973. |
27,90 Euro 19,90 Euro |
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[BT/GECAA] GEC Audio Amplifiers: Data & Design KT66, KT77 & KT88 (GEC, engl
All the data of KT66, KT77 and KT88 tubes from the original British valve manufacturer. Ultra-Linear amp schematics (30+50 watts) and designs for 30, 50 and 100 watts as well as multiple pair... |
27,90 Euro 19,90 Euro |
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[BT/RCA30] RCA Receiving Tube Manual RC-30
(RCA, USA 1973, engl.,760 pages) Includes complete specifications and graphs also of the "modern" tubes like 6CA7/EL34,5AR4/GZ34, 6DJ8, 6LF6, 6KG6A/EL509, 6550A, 7027A, 7189, 7591A and the 7868 to... |
37,50 Euro 28,76 Euro |
| TAD BiasMaster |
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[BM2] BIASMASTER System BM2
Measures BIAS current of any 6L6GC, 6550, EL34, 6V6GT, 5881, KT66, KT88, KT90, KT100, 7027A etc. in your amp.
Includes 2 octal probes (1x BMA2) and english/german operation... |
129,80 Euro |
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[BMA2] Biasmaster Testadapter für tubes with octal base, 2 pieces
Octal spare probes (2 pieces = one pair) for use with the BIASMASTER System (Cinch connector) NOTE: the picture show 4 pieces = 2 pairs
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49,00 Euro |
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[BMA2-EL84] Novalprobes f. EL84 Biasmaster
Noval probes (one pair) for use with BiasMaster System. Enables measurements on EL84, 6BQ5 etc.
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45,00 Euro |
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