I don't know if there is a more formal name for these resistors. They are found in old radios. I'm not sure of the year they started being used and the year they were replaced by the familiar carbon composition resistors. Maybe a reader can be of some help. I guess someone somewhere thought they looked like the classic cartoon dog bone. One picture is worth…you know the rest.
I had put out an appeal here for some dog bone resistors and I got some. As with the other resistor types I could not use any with a resistance greater than 100 k ohms. That left me with the 9 resistors you see in the picture above. I grouped them into small, medium, large, and extra large. According to my authority on these resistors the small are 1/4 watt, medium are 1/2 watt, large are 1 watt and extra large are 2 watt.
Resistor Behavior at MF, HF, and VHF
Dogbone, Assorted Sizes
Small 1, Color code 10 k ohm, DCR = 10.217 k ohms.
Frequency (MHz)
RX Meter Rp (ohms)
RX Meter Cp (pf)
Lp (H)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta (degrees)
0.50
10500.0
1.1
-2.89E+05
3.63E-02
10486.19
-3.80E+02
10493.09
-2.08
0.97
10500.0
1.0
-1.72E+05
6.10E-02
10461.10
-6.38E+02
10480.53
-3.49
1.89
10400.0
0.9
-9.34E+04
1.11E-01
10272.65
-1.14E+03
10336.13
-6.35
3.68
10300.0
1.0
-4.32E+04
2.38E-01
9746.00
-2.32E+03
10019.17
-13.41
7.17
10000.0
0.9
-2.47E+04
4.05E-01
8588.60
-3.48E+03
9267.47
-22.07
13.95
9700.0
0.9
-1.27E+04
7.65E-01
6118.05
-4.68E+03
7703.58
-37.42
27.14
8800.0
0.8
-7.33E+03
1.20E+00
3604.13
-4.33E+03
5631.72
-50.21
52.82
7800.0
0.8
-3.77E+03
2.07E+00
1474.86
-3.05E+03
3391.75
-64.22
102.78
6230.0
0.6
-2.58E+03
2.41E+00
912.52
-2.20E+03
2384.33
-67.50
200.00
4800.0
0.6
-1.33E+03
3.62E+00
340.47
-1.23E+03
1278.39
-74.55
Small 2, Color code 14 k ohm, DCR = 55.62 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Lp (H)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
60000.0
0.8
-3.98E+05
1.51E-01
58665.96
-8.85E+03
59329.23
-8.58
0.97
60000.0
0.7
-2.34E+05
2.57E-01
56289.27
-1.45E+04
58115.03
-14.40
1.89
55000.0
0.7
-1.20E+05
4.58E-01
45464.11
-2.08E+04
50005.26
-24.61
3.68
52000.0
0.7
-6.17E+04
8.43E-01
30410.79
-2.56E+04
39766.33
-40.12
7.17
48000.0
0.7
-3.17E+04
1.51E+00
14587.68
-2.21E+04
26461.45
-56.55
13.95
41000.0
0.6
-1.90E+04
2.16E+00
7258.08
-1.56E+04
17250.55
-65.12
27.14
33000.0
0.5
-1.17E+04
2.81E+00
3699.89
-1.04E+04
11049.72
-70.44
52.82
27500.0
0.6
-5.02E+03
5.48E+00
887.50
-4.86E+03
4940.27
-79.65
102.78
19000.0
0.5
-3.10E+03
6.14E+00
491.74
-3.02E+03
3056.64
-80.74
200.00
13500.0
0.5
-1.59E+03
8.48E+00
185.06
-1.57E+03
1580.60
-83.28
Small 3, Color code 75 k ohm, DCR = 89.44 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Lp (H)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
90000.0
0.9
-3.54E+05
2.54E-01
84526.53
-2.15E+04
87220.34
-14.28
0.97
90000.0
0.8
-2.04E+05
4.40E-01
75393.84
-3.32E+04
82373.81
-23.76
1.89
80000.0
0.8
-1.05E+05
7.61E-01
50645.63
-3.86E+04
63652.58
-37.28
3.68
75000.0
0.7
-6.17E+04
1.22E+00
30280.87
-3.68E+04
47655.69
-50.55
7.17
60000.0
0.6
-3.70E+04
1.62E+00
16531.93
-2.68E+04
31494.69
-58.34
13.95
55000.0
0.6
-1.90E+04
2.89E+00
5872.45
-1.70E+04
17971.78
-70.93
27.14
41000.0
0.5
-1.17E+04
3.50E+00
3100.37
-1.08E+04
11274.54
-74.04
52.82
37500.0
0.5
-6.03E+03
6.22E+00
944.08
-5.87E+03
5950.03
-80.87
102.78
25000.0
0.5
-3.10E+03
8.07E+00
377.85
-3.05E+03
3073.48
-82.94
200.00
19200.0
0.5
-1.59E+03
1.21E+01
131.03
-1.58E+03
1586.11
-85.26
Medium 1, Color code 110 ohm 10%, DCR = 352.5 ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
350
0.4
-7.96E+05
4.40E-04
350.00
-1.54E-01
350.00
-0.03
0.97
350
0.4
-4.09E+05
8.56E-04
350.00
-3.00E-01
350.00
-0.05
1.89
350
0.4
-2.10E+05
1.67E-03
350.00
-5.83E-01
350.00
-0.10
3.68
350
0.3
-1.44E+05
2.43E-03
350.00
-8.51E-01
350.00
-0.14
7.17
350
0.3
-7.40E+04
4.73E-03
349.99
-1.66E+00
350.00
-0.27
13.95
350
0.3
-3.80E+04
9.20E-03
349.97
-3.22E+00
349.99
-0.53
27.14
350
0.3
-1.95E+04
1.79E-02
349.89
-6.27E+00
349.94
-1.03
52.82
348
0.3
-1.00E+04
3.46E-02
347.58
-1.20E+01
347.79
-1.98
102.78
340
0.3
-5.16E+03
6.59E-02
338.53
-2.23E+01
339.26
-3.77
200.00
321
0.3
-2.65E+03
1.21E-01
316.37
-3.83E+01
318.68
-6.90
Medium 2, Color code 2.2 k ohm, DCR = 2.327 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
2,320
1.8
-1.77E+05
1.31E-02
2.32E+03
-3.04E+01
2,320
-0.75
0.97
2,320
1.5
-1.09E+05
2.13E-02
2.32E+03
-4.93E+01
2,319
-1.22
1.89
2,320
1.5
-5.60E+04
4.14E-02
2.32E+03
-9.59E+01
2,318
-2.37
3.68
2,300
1.4
-3.09E+04
7.45E-02
2.29E+03
-1.70E+02
2,294
-4.26
7.17
2,290
1.3
-1.71E+04
1.34E-01
2.25E+03
-3.02E+02
2,270
-7.64
13.95
2,240
1.2
-9.51E+03
2.36E-01
2.12E+03
-5.00E+02
2,180
-13.26
27.14
2,150
1.2
-4.89E+03
4.40E-01
1.80E+03
-7.93E+02
1,968
-23.75
52.82
2,000
1.1
-2.74E+03
7.30E-01
1.30E+03
-9.52E+02
1,615
-36.13
102.78
1,740
1.0
-1.55E+03
1.12E+00
7.69E+02
-8.64E+02
1,157
-48.33
200.00
1,380
0.9
-8.84E+02
1.56E+00
4.02E+02
-6.27E+02
744
-57.35
Medium 3, Color code 51 k ohm, DCR = 24.07 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
24,200
1.1
-2.89E+05
8.36E-02
2.40E+04
-2.01E+03
24,116
-4.78
0.97
24,000
1.0
-1.64E+05
1.47E-01
2.35E+04
-3.45E+03
23,746
-8.35
1.89
23,800
0.9
-9.34E+04
2.55E-01
2.23E+04
-5.69E+03
23,063
-14.29
3.68
23,000
0.9
-4.80E+04
4.79E-01
1.87E+04
-8.96E+03
20,742
-25.60
7.17
22,000
0.9
-2.47E+04
8.92E-01
1.23E+04
-1.09E+04
16,419
-41.73
13.95
21,000
0.8
-1.43E+04
1.47E+00
6.63E+03
-9.76E+03
11,798
-55.82
27.14
18,100
0.8
-7.33E+03
2.47E+00
2.55E+03
-6.30E+03
6,793
-67.96
52.82
16,000
0.7
-4.30E+03
3.72E+00
1.08E+03
-4.01E+03
4,157
-74.94
102.78
12,000
0.6
-2.58E+03
4.65E+00
5.31E+02
-2.47E+03
2,523
-77.86
200.00
8,800
0.6
-1.33E+03
6.64E+00
1.95E+02
-1.30E+03
1,311
-81.43
Large 1, Color code 1.1 k ohm 10%, DCR = 943.3 ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
938
1.8
-1.77E+05
5.30E-03
9.38E+02
-4.98E+00
938
-0.30
0.97
939
1.7
-9.62E+04
9.76E-03
9.39E+02
-9.16E+00
939
-0.56
1.89
939
1.7
-4.94E+04
1.90E-02
9.39E+02
-1.78E+01
939
-1.09
3.68
935
1.6
-2.70E+04
3.46E-02
9.34E+02
-3.23E+01
934
-1.98
7.17
930
1.4
-1.59E+04
5.86E-02
9.27E+02
-5.44E+01
928
-3.36
13.95
922
1.4
-8.15E+03
1.13E-01
9.10E+02
-1.03E+02
916
-6.45
27.14
920
1.3
-4.51E+03
2.04E-01
8.83E+02
-1.80E+02
901
-11.53
52.82
885
1.2
-2.51E+03
3.52E-01
7.87E+02
-2.77E+02
835
-19.42
102.78
800
1.1
-1.41E+03
5.68E-01
6.05E+02
-3.44E+02
696
-29.61
200.00
662
1.0
-7.96E+02
8.32E-01
3.91E+02
-3.25E+02
509
-39.76
Large 2, Color code 22 k ohm, DCR = 43.29 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
43,000
1.8
-1.77E+05
2.43E-01
4.06E+04
-9.87E+03
41,783
-13.67
0.97
42,000
1.5
-1.09E+05
3.85E-01
3.66E+04
-1.41E+04
39,194
-21.06
1.89
40,000
1.4
-6.00E+04
6.66E-01
2.77E+04
-1.85E+04
33,290
-33.67
3.68
37,500
1.4
-3.09E+04
1.22E+00
1.51E+04
-1.84E+04
23,828
-50.55
7.17
33,000
1.2
-1.85E+04
1.78E+00
7.89E+03
-1.41E+04
16,138
-60.72
13.95
29,000
1.2
-9.51E+03
3.05E+00
2.81E+03
-8.59E+03
9,035
-71.85
27.14
22,200
1.1
-5.33E+03
4.16E+00
1.21E+03
-5.04E+03
5,183
-76.50
52.82
19,000
1.1
-2.74E+03
6.94E+00
3.87E+02
-2.68E+03
2,711
-81.80
102.78
13,600
1.0
-1.55E+03
8.78E+00
1.74E+02
-1.53E+03
1,539
-83.50
200.00
9,500
1.0
-7.96E+02
1.19E+01
6.62E+01
-7.90E+02
793
-85.21
Extra Large, Color code 10 k ohm, DCR = 4.264 k ohms.
Frequency (MHz)
RX Meter Rp
RX Meter Cp (pf)
Xp
Q
Rs
jXs
Magnitude Z
Angle Theta
0.50
4,300
4.6
-6.92E+04
6.21E-02
4.28E+03
-2.66E+02
4,292
-3.56
0.97
4,280
2.5
-6.54E+04
6.54E-02
4.26E+03
-2.79E+02
4,271
-3.74
1.89
4,250
2.5
-3.36E+04
1.26E-01
4.18E+03
-5.29E+02
4,216
-7.20
3.68
4,160
2.4
-1.80E+04
2.31E-01
3.95E+03
-9.13E+02
4,053
-13.01
7.17
4,000
2.2
-1.01E+04
3.96E-01
3.46E+03
-1.37E+03
3,719
-21.62
13.95
3,830
1.9
-6.00E+03
6.38E-01
2.72E+03
-1.74E+03
3,229
-32.53
27.14
3,510
1.9
-3.09E+03
1.14E+00
1.53E+03
-1.74E+03
2,318
-48.68
52.82
3,180
1.8
-1.67E+03
1.90E+00
6.90E+02
-1.31E+03
1,481
-62.24
102.78
2,530
1.8
-8.60E+02
2.94E+00
2.62E+02
-7.71E+02
814
-71.22
200.00
1,770
1.6
-4.97E+02
3.56E+00
1.30E+02
-4.61E+02
479
-74.30