Marcinkiewicz Tuba
Model No.
|
Outside Cup dia.
|
Inside Cup dia.
|
Cup Depth
|
Drill Venturi
|
Length
|
Comparison Only
|
H1
|
1.873 in.
47.57 mm
|
1.325 in.
33.60 mm
|
1.632 in.
41.45 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
H2
|
1.873 in.
47.57 mm
|
1.323 in.
33.60 mm
|
1.582 in.
40.18 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
H3
|
1.873 in.
47.57 mm
|
1.323 in.
33.60 mm
|
1.532 in.
38.91 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
H4
|
1.873 in.
47.57 mm
|
1.323 in.
33.60 mm
|
1.467 in.
37.26 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
N1
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.517 in.
38.53 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
N2
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.476 in.
37.26 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
N3
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.417 in.
35.99 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
T. Johnson
N4
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.352 in.
34.34 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
W1
|
1.980 in.
50.29 mm
|
1.325 in.
33.66 mm
|
1.517 in.
38.53 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C4
|
W2
|
1.980 in.
50.29 mm
|
1.325 in.
33.66 mm
|
1.476 in.
37.26 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C4
|
W3
|
1.980 in.
50.29 mm
|
1.325 in.
33.66 mm
|
1.417 in.
35.99 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C4
|
W4
|
1.980 in.
50.29 mm
|
1.325 in.
33.66 mm
|
1.352 in.
34.34 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C4
|
Jim Self
ETU 1
|
1.973 in.
50.11 mm
|
1.305 in.
33.15 mm
|
1.457 in.
37.01 mm
|
0.316 in.
8.03 mm
|
3.800 in.
96.52 mm
|
***
|
ST 3
|
1.875 in.
47.63 mm
|
1.277 in.
32.44 mm
|
1.287 in.
32.69 mm
|
0.302 in.
8.33 mm
|
1.287 in.
32.69 mm
|
***
|
ST 4
|
1.875 in.
47.63 mm
|
1.277 in.
32.44 mm
|
1.222 in.
31.04 mm
|
0.302 in.
8.33 mm
|
3.800 in.
96.52 mm
|
***
|
18
|
1.876 in.
47.65 mm
|
1.290 in.
32.77 mm
|
1.443 in.
36.65 mm
|
0.323 in.
8.20 mm
|
3.800 in.
96.52 mm
|
Bach 18
|
24AW
|
1.955 in.
49.66 mm
|
1.281 in.
32.54 mm
|
1.657 in.
42.09 mm
|
0.348 in.
8.84 mm
|
3.800 in.
96.52 mm
|
Bach 24AW
|
25
|
1.845 in.
46.86 mm
|
1.230 in.
31.24 mm
|
1.495 in.
37.97 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Bach 25
|
Marcinkiewicz Tuba
Model No.
|
Outside Cup dia.
|
Inside Cup dia.
|
Cup Depth
|
Drill Venturi
|
Length
|
Comparison Only
|
CH H2
|
1.873 in.
47.57 mm
|
1.323 in.
33.60 mm
|
1.582 in.
40.18 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
CH H4
|
1.873 in.
47.57 mm
|
1.323 in.
33.60 mm
|
1.176 in.
37.26 mm
|
0.328 in.
8.33 mm
|
3.800 in.
96.52 mm
|
Conn Helleberg
|
CH N1
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.517 in.
38.53 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
CH N4
|
1.940 in.
49.28 mm
|
1.325 in.
33.66 mm
|
1.352 in.
34.34 mm
|
0.302 in.
7.67 mm
|
3.800 in.
96.52 mm
|
Mirafone C3
|
CH 18
|
1.876 in.
47.65 mm
|
1.290 in.
32.77 mm
|
1.443 in.
36.65 mm
|
0.323 in.
8.20 mm
|
3.800 in.
96.52 mm
|
Bach 18
|
|