Aluminum Slenthem with Tubular Resonators
The aluminum used for the bars was 1/8 inch (3mm) thick. Keys 6 and 7
were cut from a different piece of stock than the others, so the figures
had to be done separately for them when rough cutting them to length.
The resonators are made of 3 inch (7.62 cm) wide PVC plumbing pipe.
Figures given are to the nearest Hz and/or millimeter.
| Key # |
Pitch |
Frequency |
Bar Length |
Resonator Length |
| 1 |
D# -15c |
154 Hz |
36.8 cm |
53.3 cm |
| 2 |
E +20 |
167 |
35.2 |
49.0 |
| 3 |
F# -30 |
182 |
34.0 |
44.7 |
| 4 |
G# +50 |
214 |
31.4 |
37.6 |
| 5 |
A# -25 |
230 |
30.2 |
34.9 |
| 6 |
B -20 |
244 |
29.9 |
32.7 |
| 7 |
C# -25 |
273 |
26.2 |
29.0 |