Easily check the Bias and
Balance
on most any vacuum tube amp
Setting the Bias on a
SA-100 Fisher
With 7189 Tubes |
Setting the Bias on a
JMP MK2
With EL34 Tubes "Valves"
Note
improper bias setting
from previous tube set |
Fender® Marshall®
Peavy® Laney® Fisher® Dynaco® DIY
Guitar, JukeBox,
Monoblock, Stereo Amps and more
See tube compatability for each probe.
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PLACES TO
VISIT
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ACCURATELY CHECK AND ADJUST
PROPER OUTPUT TUBE BIAS AND BALANCE
IF YOU HAVE A TUBE TYPE AMP THIS TOOL IS
INDISPENSABLE
MAKES SIMPLE BIAS PROBES
OBSOLETE
- ACCURATELY DISPLAYS PLATE
VOLTAGE
ACCURATELY DISPLAYS CATHODE CURRENT
ACCURATELY
DISPLAYS CALCULATED WATTAGE
AUTOMATICALLY FOR UP TO 2 TUBES
- DIRECT READING SIMPLY SET THE
BIAS FOR PROPER DISSIPATION / BALANCE AND YOU ARE DONE
- A BETTER VALUE THAN SIMPLE
PROBES
- SELECT YOUR OWN BIAS PROBE
CONFIGURATION
OCTAL, NOVAL (9 PIN) OR BOTH
- WORKS WITH AC OR DC
FILAMENTS
- DON'T HACK UP A VINTAGE VACUUM
TUBE AMP JUST TO CHECK BIAS OR BALANCE
- INDESPENSIBLE TOOL FOR HI-FI,
GUITAR, JUKEBOX OR JUST ABOUT ANY TUBE AMP
- OPTIONAL DIRECT READING WATTAGE
PROBE
DISPLAYS WATTS INTO 2, 4, 8 AND 16 OHM LOADS
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Click here to read more
comments:
"So far, I can tell you that it has cut time to a fraction of what it has taken in the past... no more soldering, no more having to take various measurements and then calculate for correct values.
Basically, I have no dislikes at all. A back-light for the display would be nice but I understand why it's not there and that is very minor.
I especially like the idea of no power switch and the auto on/off. Too many other pieces of equipment I use daily (cable testers, cable tracers, radios, etc.) have external power switches and it never fails that somehow they are left on or get bumped on in their cases. The auto switch function between voltage/current measurement and output wattage measurement is nice too. Having no front panel controls at all, unlike the other meters I have used, makes Compu-Bias easier to use. It also makes it easier to store since you do not have to worry about control knobs sticking out and running the risk of breaking them."
M.F. 02-13-07
OCTAL ADAPTOR
PROBE
WORKS WITH
MOST ANY 7AC, 8EP TUBE BASE
6K6
6V6
6L6
EL34
KT66
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KT88
KT90
5881
6550
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MORE |
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NOVAL ADAPTOR
PROBE
WORKS WITH
MOST ANY 9CV TUBE BASE
6BQ5
7189
6P14
6P15 |
EL84
7320
10BQ5
10P18
+
MORE |
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WATT PROBE
POWER
INTO 2,4,8,16 OHMS |
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