Jewell Tube Checker Pattern 110 |
1925 ?? |
Equipment |
|
5 |
 |
|
|
$ |
Jewell Tube Checker Pattern No. 107 |
1926 ? |
Equipment |
|
5 |
 |
|
|
$ |
Jewell Tube Tester Pattern 210 |
1928 ? |
Equipment |
|
7 |
 |
|
|
|
Jewell Voltmeter Pattern No. 98 |
1925 |
Equipment |
|
1 |
 |
|
|
|
Jewell Voltmeter Pattern No. 135-B |
1927 |
Misc |
|
|
|
|
|
|
Jewell Voltmeter Pattern No. 140 |
1925 |
Equipment |
|
1 |
 |
|
|
|
Jewell Voltmeter Pattern No. 135 |
1925 |
Misc |
|
1 |
 |
|
|
|
Jewell Voltmeter Pattern No. 135-A |
1926 ? |
Misc |
|
4 |
 |
|
|
|
Jewell Voltmeter Pattern No. 135-C |
1926 ? |
Misc |
|
1 |
 |
|
|
|
Jewell Wavemeter Pattern No. 90 [Version 1] |
1922 ?? |
Equipment |
|
8 |
 |
|
|
|
Jewell Wavemeter Pattern No. 90 [Version 2] |
1922 ?? |
Equipment |
|
4 |
 |
|
|
|
Jewell Wavemeter Pattern No. 90 [Version 3] |
1922 ?? |
Equipment |
|
4 |
 |
|
|
$ |
Jewell Wavemeter Pattern No. 90 [Version 4] |
1922 ?? |
Equipment |
|
7 |
 |
|
|
|
Leistungsmesser 432 |
1930 ?? |
Equipment |
|
3 |
 |
|
|
$ |
Microfaradmeter 372 |
1926 |
Equipment |
|
4 |
 |
|
|
|
Milliammeter 269 |
1918 ? |
Equipment |
|
5 |
 |
|
|
|
Milliammeter A.C. 301V |
1930 |
Equipment |
|
1 |
 |
2S |
|
|
Ohmmeter 563 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
Output-Meter |
1935 ? |
Equipment |
|
1 |
 |
|
|
|
Portable AC & DC Voltmeter |
1900 ?? |
Equipment |
|
6 |
 |
|
|
$ |
Precision AC-DC Voltmeter 341 |
1930 ?? |
Equipment |
|
1 |
 |
|
|
|
Radio Receiver Analyzing Equip. OE12 |
1935 ?? |
Equipment |
|
|
|
|
|
|
Radio Set Tester 519 |
1927 |
Equipment |
|
6 |
 |
|
|
$ |
Selective Set Servicer 698 |
1938 ?? |
Equipment |
|
7 |
 |
1S |
|
|
Set Tester |
1928 ? |
Equipment |
|
8 |
 |
|
|
|
Standard Cell Model 4 |
1950 ?? |
Equipment |
|
2 |
 |
|
|
|
Tube Checker 771 Type 2 |
1937 ? |
Equipment |
|
3 |
 |
|
1F |
|
Tube Tester TV-4/U |
1950 ?? |
Equipment |
|
5 |
 |
|
|
|
Tube Tester 978 |
1950 ?? |
Equipment |
|
8 |
 |
|
|
|
TV-4 A/U Tube Tester |
1953 ?? |
Equipment |
|
2 |
 |
|
|
$ |
Vacuum Tube Analyzer OQ-3 788 |
1940 ?? |
Equipment |
|
4 |
 |
|
|
$ |
Voltammeter I 50 280 |
1916 ?? |
Equipment |
|
4 |
 |
|
|
|
Voltmeter 301 |
1930 |
Equipment |
|
4 |
 |
3S |
|
|
Volt-Ohmmeter 564 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
weston standard cell mod.3 batterie étalon |
1908–99 ?? |
Misc |
|
1 |
 |
1S |
|
|
264 |
1920 ?? |
Equipment |
|
3 |
 |
|
|
|
280 |
1930 |
Equipment |
|
5 |
 |
1S |
|
|
322 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
330 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
400 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
401 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
412 |
1930 |
Equipment |
|
1 |
 |
2S |
|
|
425 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
476 |
1930 |
Equipment |
|
1 |
 |
2S |
|
|
482 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
489 |
1930 |
Equipment |
|
3 |
 |
1S |
|
|
492 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
506 L 21 |
1926–28 ?? |
mod-past25 |
|
4 |
 |
3S |
|
|
507 |
1930 |
Equipment |
|
1 |
 |
1S |
|
|
517 |
1930 |
Equipment |
|
1 |
 |
2S |
|
|
564 type 3C |
1940 |
Equipment |
|
7 |
 |
1S |
1F |
|
697 |
1938 ?? |
Equipment |
|
6 |
 |
2S |
|
|
779 |
1946 |
Equipment |
|
6 |
 |
|
|
|
Six Transistor |
1968 ?? |
Radio |
6 |
|
|
|
|
|
A-B Relay Type 595 |
1935 ?? |
Power-S |
|
6 |
 |
|
|
|
AC Ammeter 904 |
1960 ?? |
Equipment |
|
2 |
 |
|
|
|
AC Ammeter Voltmeter 633-85 Type VA-1 |
1960 ?? |
Equipment |
|
2 |
 |
|
|
|
AC Voltmeter 433 |
1940 ? |
Equipment |
|
13 |
 |
1S |
|
|
AC Voltmeter 904 |
1960 ?? |
Equipment |
|
3 |
 |
8S |
|
|
Antenna RF Current Meter 507 |
1950 ?? |
Equipment |
|
1 |
 |
|
|
|
Clamp Volt-Ammeter 749 |
1960 ? |
Equipment |
|
2 |
 |
|
|
|
D.C. Microamperes Panel Meter 741 |
1940 ?? |
Equipment |
|
2 |
 |
|
|
|
D.C. Milliammeter 45 |
1900–40 ?? |
Equipment |
|
7 |
 |
|
|
|
DC Voltmeter 931 |
1960 ?? |
Equipment |
|
4 |
 |
1S |
|
|
Direct Current Voltmeter Model 1 |
1915 ?? |
Equipment |
|
4 |
 |
|
|
|
Galvanometer 699 |
1950 ?? |
Equipment |
|
3 |
 |
|
|
|
Illumination Meter 603 |
1932 ? |
Equipment |
|
7 |
 |
|
|
|
Industrial Circuit Tester 785 Type 3 |
1942–50 |
Equipment |
|
8 |
 |
|
|
|
Industrial Circuit Tester 785 Type 4 |
1942–50 |
Equipment |
|
13 |
 |
|
|
|
Industrial Circuit Tester 785 Type 6A |
1950 ?? |
Equipment |
|
4 |
 |
2S |
|
|
Microammeter 440 |
1934 ? |
Equipment |
|
3 |
 |
1S |
|
|
Milliammeter 911 |
1970 ?? |
Equipment |
|
2 |
 |
|
|
|
Millivolts D.C. 931 |
1940 ?? |
Equipment |
|
1 |
 |
|
|
|
Ohmmeter 689 1-F |
1930 ?? |
Equipment |
|
9 |
 |
|
|
|
Output Meter 687 |
1934 |
Equipment |
|
6 |
 |
|
|
|
Radio Frequency Amperes Meter 3A |
1950 ?? |
Equipment |
|
2 |
 |
|
|
|
Radio Receiver Analyzing Equipment OE-8 |
1932 ?? |
Equipment |
|
6 |
 |
|
1F |
|
Selective Analyzer 656-6 |
1934 |
Equipment |
|
2 |
 |
|
|
|
Selective Analyzer 665 [Type 2] |
1934 ? |
Equipment |
|
4 |
 |
1S |
|
|
Socket Selector Unit 666 [Type 1B] |
1939–42 |
Equipment |
|
4 |
 |
5S |
|
|
Super Sensitive Analyzer 772 [Type 6] |
1946 ? |
Equipment |
|
3 |
 |
1S |
|
|
Super-Sensitive Analyzer 772 [Type 2] |
1937–41 |
Equipment |
|
23 |
 |
1S |
|
|
Tube Tester 672-2 |
1940 ?? |
Equipment |
|
|
|
1S |
|
|
Voltmeter 269 |
1918 ? |
Equipment |
|
3 |
 |
|
|
|
Volt-Ohmmeter 980 Mark II |
1968 ?? |
Equipment |
|
6 |
 |
|
|
|
Volts & Amperes Meter Automobile |
1900 ?? |
Equipment |
|
1 |
 |
|
|
|
265 DC Voltmeter (D.C.) |
1930 ?? |
Equipment |
|
8 |
 |
|
|
|
517 (MR25 F 150 ACVV) |
1930 ?? |
Equipment |
|
1 |
 |
|
|
|
643 (KS-8797) |
1940 ?? |
Equipment |
|
3 |
 |
|
|
|
1531 |
1960 ?? |
Equipment |
|
2 |
 |
|
|
|