[HAM] Taper resistancesKon Zissis kziss at ozemail.com.auThu Oct 4 02:51:59 CDT 2007
Hi Bill and everyone.
Here below are the measured manual resistance wire ohms values of a
1966 C3. The owner of this 1966 C3 is in the process of defoaming and
repairing his C3 organ and he recently measured and then sent me these
ohms values .
I also have the chart of the measured ohms values of the manual
tapering resistance wires of a 1946 CV organ and the ohms values of that
1946 CV are identical to the ohms values shown here below apart from
the following exceptions:
16' ft drawbar
Keyboard note: 8 9 10 11 12
1946 CV ohms 120 140 50 50 50
1966 C3 ohms 100 100 100 100 80
8 ' ft drawbar
Keyboard note: 38
1946 CV ohms: 24
1966 C3 ohms: 15
2 ft drawbar
Keyboard note: 20
1946 CV ohms: 15
1966 C3 ohms : 24
The differences in the keyboard notes 8 to 12 of the 16 ft drawbar are
because the 1946 CV organ has the 82 note TG and the folded back TG
notes 13 to 21 appear on the keyboard notes 1 to 9 and then the sine
wave pedal bass notes 10 to 12 appear on the keyboard notes 10 to 12 ,
whilst the 1966 C3 has the folded back TG notes 13 to 24 on the 16 ft
drawbar keyboard notes 1 to 12. Apart from this it appears that there
was little difference in the manual tapering from at least 1946 to
1973. I am not aware if the manual tapering resistance values changed
after 1966.
I hope that the full chart shown below appears properly on Hammond Zeni.
MEASURED MANUAL TAPERING RESISTANCE WIRE OHMS VALUES OF A 1966 C3
Note Key 16' 51/3' 8' 4' 2 2/3' 2' 1 3/5' 1 1/3' 1'
C 1 100 34 50 34 10 10 15
24 24
C# 2 100 34 50 34 10 10 15
24 24
D 3 100 34 50 34 10 10 15
24 24
D# 4 100 34 50 34 10 10 15
24 24
E 5 100 34 50 34 10 10 15
24 24
F 6 100 34 50 34 10 10 15
24 24
F# 7 100 34 50 34 10 10 15
24 24
G 8 100 34 50 34 10 10 15
24 24
G# 9 100 34 50 34 10 10 15
24 24
A 10 100 34 50 34 10 10 15
24 24
A# 11 100 34 50 34 10 10 15
24 24
B 12 80 34 50 34 10 15 15
24 24
C 13 50 34 50 34 15 15 15
24 24
C# 14 50 34 50 24 15 15 15
24 24
D 15 50 24 50 24 15 15 15
24 24
D# 16 50 24 34 24 15 15 15
24 24
E 17 34 24 34 24 15 15 15
24 24
F 18 34 24 34 24 15 15 15
24 24
F# 19 34 24 34 24 15 15 24
24 24
G 20 34 24 34 24 15 24 24
24 24
G# 21 34 24 34 24 24 24 24
24 24
A 22 34 24 34 24 24 24 24
24 24
A# 23 34 24 34 24 24 24 24
24 24
B 24 34 24 24 24 24 24 24
24 24
C 25 24 24 24 24 24 24 24
24 24
C# 26 24 24 24 24 24 24 24
24 24
D 27 24 24 24 24 24 24 24
24 24
D# 28 24 24 24 24 24 24 24
24 24
E 29 24 24 24 24 24 24 24
24 24
F 30 24 24 24 24 24 24 24
24 24
F# 31 24 24 24 24 24 24 24
24 24
G 32 24 24 24 24 24 24 24
24 24
G# 33 24 24 24 24 24 24 24
24 24
A 34 24 24 24 24 24 24 24
24 24
A# 35 24 24 24 24 24 24 24
24 24
B 36 24 24 24 24 24 24 24
24 24
C 37 15 24 24 24 24 24 24
24 24
C# 38 15 24 15 24 24 24 24
24 24
D 39 15 15 15 24 24 24 24
24 24
D# 40 15 15 15 34 24 24 24
24 24
E 41 15 15 15 34 34 24 24
24 24
F 42 15 15 15 34 34 34 24
24 24
F# 43 15 15 15 34 34 34 34
24 24
G 44 15 15 15 34 34 34 34
34 50
G# 45 15 15 15 34 34 34 34
34 50
A 46 15 15 15 34 34 34 34
34 50
A# 47 15 15 15 34 34 34 34
34 50
B 48 15 15 15 34 34 34 34
34 50
C 49 10 15 15 34 34 34 34
50 50
C# 50 10 15 10 34 34 34 34
50 50
D 51 10 10 10 34 34 34 34
50 50
D# 52 10 10 10 34 34 34 50
50 50
E 53 10 10 10 34 50 34 50
50 50
F 54 10 10 10 34 50 34 50
50 50
F# 55 10 10 10 34 50 34 50
50 50
G 56 10 10 10 34 50 50 50
50 50
G# 57 10 10 10 34 50 50 50
50 50
A 58 10 10 10 34 50 50 50
50 50
A# 59 10 10 10 34 50 50 50
50 50
B 60 10 10 10 34 50 50 50
50 50
C 61 10 10 10 34 50 50 50
50 50
All the best.
Kon
Bill Odum wrote:
>How can I find out the values of the resistance wires used to taper
upper end? I believe that different runs of the >B3 had the taper
varied from run to run. Right?
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