If you are replacing a #44 lamp, it is a good idea to use a #47 in its place. It draws less current, so the power supply and the connectors are stressed less, and the plastics do not warp over time from the heat. Of course the #47 is slightly dimmer, but believe me, it is worth it.
Example for 100 #44 lamps versus 100 #47 lamps:
100 x #44 = 0.250 A x 100 x 6.3 V = 157.5 W
100 x #47 = 0.150 A x 100 x 6.3 V = 94.5 W
List 1
| Code | Base | Volt | Amperage | Type | Notes |
|---|---|---|---|---|---|
| #44 | BA9S | 6.3 | 0.25 | Miniature Bayonet T-3 1/4 inch | Used in most pinball machines |
| #47 | BA9S | 6.3 | 0.15 | Miniature Bayonet T-3 1/4 inch | Preferable to the #44 |
| #51 | BA9S | 7.5 | 0.22 | Miniature Bayonet G-3 1/4 inch | |
| #67 | BA15S | 13.5 | 0.59 | Bayonet G-6 | Gottlieb flash lamps. Can replace the #89 |
| #86 | WEDGE | 6.3 | 0.2 | Wedge T-1 3/4 | Twilight Zone clock. Creature from the Black Lagoon ramps |
| #89 | BA15S | 12 | 0.58 | Bayonet G-6 | Flash lamps |
| #161 | WEDGE | 14 | 0.19 | Wedge T-1 3/4 | |
| #194 | WEDGE | 14 | 0.27 | Wedge T-1 3/4 | |
| #259 | WEDGE | 6.3 | 0.25 | Wedge T-1 3/4 | |
| #447 | WEDGE | 6.3 | 0.15 | Wedge T-1 3/4 | |
| #455 | BA9S | 6.5 | 0.5 | Miniature Bayonet G-4 1/2 | Blinking #44 lamp |
| #545 | WEDGE | 6.5 | 0.5 | Wedge T-1 3/4 | |
| #555 | WEDGE | 6.3 | 0.25 | Wedge T-1 3/4 | |
| #904 | WEDGE | 13.5 | 0.69 | Wedge T-5 | |
| #906 | WEDGE | 13.5 | 0.69 | Wedge T-5 | Flash lamps |
| #1156 | BA15S | 12.8 | 2.10 | S.C. Bayonet S-8 |
List 2: manufacturer part numbers
| Alvin | Atari | Bally old/Midway | Williams/Bally (new) | Capcom | Data East/Sega/Stern (new) | Gottlieb/Premier | Stern (old) | |
| #44 | LMP-002 | E-125-22 | 24-6549 | LP00104 | 165-5000-44 | LA-0 | 8A-101 | |
| #47 | 70-11-47 | |||||||
| #51 | ||||||||
| #67 | LA-5 | |||||||
| #86 | ||||||||
| #89 | LMP-004 | 24-8704 | 165-5000-89 | |||||
| #161 | ||||||||
| #194 | ||||||||
| #259 | ||||||||
| #447 | ||||||||
| #455 | 24-6591 | LA-1 | ||||||
| #545 | ||||||||
| #555 | LMP-003 | 0017-0003-0501 | E-125-73 | 24-8768 | 165-5002-00 | LA-2 | ||
| #904 | LA-3 | |||||||
| #906 | 24-8802 | 165-5004-00 | ||||||
| #1156 |