B & K Manufacturing Company - 675 - Valve characteristic meter
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B & K Manufacturing Company 675
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Equipment:
675
Date:
1958
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Information
WHAT IT WILL DO
No. 1—The Dyna-Quik Model 675 automatic punched card Tube
Tester will check more than 99% of the TV tubes in general
use. Tubes can be tested in an incredibly short time since
only a minimum number of controls need be set.
No. 2—The Model 675 will provide accurate results because it
checks tubes for their Dynamic Mutual Conductance (Gm) in a
true transconductance bridge. Diodes are checked for
emission only, since they possess no mutual conductance.
No. 3—Each tube is automatically checked for short circuits
and leakage up to 1 megohm. These tests are made between the
various elements of the tube and furthermore this test is
made before the Gm measurement.
No. -1—The Model 675 Tester will provide an indication of
the probable useful life remaining in a tube by means of a
special LIFE TEST.
No. 5—Gas, grid contamination, or even obscure
grid-to-cathode leakage are all disclosed by an
exceptionally sensitive grid current check. This test will
reveal as little as 2 or 3 microamperes of current in the
grid circuit.
No. 6—Each section of a multisection tube is checked
separately. Therefore tubes can be checked and selected for
balance between sections. This is convenient for selecting
dual section tubes to be used in push pull circuits.
No. 7—Semiconductors (rectifiers, diodes, and transistors)
can be tested. Rectifiers cheeked for Forward-to-Reverse
Conduction Ratio. Diodes for For-ward-to-Reverse Ratio.
Transistors for Leakage and Gain.
2 Manuals
User manual
Manual type:
User manual
Pages:
11
Size:
5.5 MB
Language:
english
Revision:
Manual-ID:
Date:
January 1958
Quality:
Scanned document, all readable.
Upload date:
Aug. 5, 2018
MD5:
239da469-0847-9295-7aab-4f1245358fd6
Downloads:
316
User manual
Manual type:
User manual
Pages:
12
Size:
4.8 MB
Language:
english
Revision:
Manual-ID:
Date:
January 1961
Quality:
Scanned document, all readable.
Upload date:
Aug. 5, 2018
MD5:
309abfea-ebf7-dfaa-afc2-9f66106fa335
Downloads:
327