Description:
B & K Model 747 Dyna-Jet Solid State Mutual Conductance Tube Tester
Details:
The B&K 747 is a transconductance type tube tester that does a decent job of testing many of the newer tubes.Unlike the 700/707, this tester is totally solid state. This tester only checks more modern tubes and is not recommended for antique radio repair. It is more suited for the guitar amp service man or CB/Ham service shop since it checks all of the octal and later type power tubes and is able to check double triodes like 12AX7\'s without any control resetting.
- Measures mutual transconductance
- Meter has bad-?-good scale
- It is also calibrated in percent of rated transconductance
- Only 2 knobs to set! You need only to set the filament voltage and sensitivity adjustment. If you check a tube on the lower bank of sockets (later type sockets like 12 pin compactron), you need to adjust 4 additional grid leakage and shorts with meter
- Has \"Test 2\" button which tests the second section of a double section tube such as 12AX7. No need to make any knob adjustments
- Tests octal, 7 & 9 pin minature, 9 & 12 pin compactron tubes
What you get:
B & K Model 747 Tube Tester with Setup Chart
Condition:
Used, vintage item in pretty good shape. Not sure how the calibration is on this unit, although I was able to successfully test one of my tubes with it.
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