| Number |
Diameter |
Height |
Construction |
Comments |
| 1 |
|
|
|
Used on Telephone No's 59, Mk. N.T. 1, 11 and 12 |
| 2 |
2.5" |
0.9" |
Nickel plated, Brass |
Used on Telephone No. 1 and BS No. 1A (High
tone) |
| 2A |
2.5" |
0.9" |
Nickel plated, Brass |
Used on Telephone No. 1 and BS No. 1A (Low tone) |
| 3 |
2.5" |
0.9" |
Aluminium |
Used on Telephone No. 1 and BS No. 1A |
| 4 |
2.6" |
|
|
Used on Telephones No. 16 and 18 |
| 5 |
3" |
|
|
Used on Bell No's 17 and 20 |
| 6 |
3.5" |
|
|
|
| 7 |
4" |
1.5" |
Brass, matt black enamel |
Used on Bell No's 44A, 44B, 47A, 64E |
| 7A |
4" |
1.5" |
Steel, matt black enamel |
|
| 8 |
4.5" |
1.5" |
Bell metal, Ni P polished |
|
| 9 |
6" |
2" |
Bell metal, Ni P polished |
Used on Bell No. 27 and 48 |
| 10 |
8" |
|
|
Used on Bell No. 31A |
| 11 |
|
|
|
Cow gong - Used of telephones intermediate with
generator |
| 12 |
2.6" long |
2" |
|
Cow gong (CD255) used on Bell No. 45 and 64F |
| 13 |
3" |
|
|
Used on Bell No. 14A and 14B |
| 14 |
3" |
|
|
Used on Bell No. 13A and 13B |
| 15A |
6" |
1.5" |
Brass, Ni P matt |
Used on Bells No's 48A, 53A and 67B (62795) |
| 16A |
12" |
3.3" |
Cast Iron, Aluminium painted |
Used on Bell No. 19 |
| 17 |
2.5" |
|
Steel, bronzed |
Used on Bellset No's 4 and 7 |
| 18 |
2.5" |
0.75" |
Pressed Brass, Ni P matt |
Used on Transmitter No. 25 (CD257) |
| 19 |
6.125" |
4.75" |
Bell metal, clear lacquer |
Cow gong (62793) |
| 21 |
4.5" |
3.2" |
Bell metal, Ni P polished |
Church gong (CD1104) |
| 22 |
7.2" |
0.234" |
Spring steel, Ni P matt |
Curled wire gong (90907) |
| 23A & B |
2.062" |
1" |
Brass, Annealed, Ni P matt |
Superseded by Bell-gongs No. 24 (91265) |
| 24A & B |
2.15" |
1" |
Brass, Annealed, Bright dipped |
Later Bell-gong No. 24A is steel, zinc plated
(91846) |
| 25A |
2.3" |
1.275" |
Brass, Annealed, Ni P matt |
Cow gong (92520) |
| 26A |
152.4mm |
38.1mm |
Steel, Zinc plate, Epoxy coated |
Used on Bell No. 80B (93807) |
| 27A |
120mm |
31.2mm |
Steel, Zinc plate, Epoxy coated |
Used on Bell No. 80B (93808) |