#47 Equivalent Miniature Bayonet-Base Lamp 10-Pack — Fits Pinball Machines & Fender Tube Amps
Aftermarket equivalent #47 miniature lamps — a 10-pack of T-3-1/4 bayonet-base bulbs cross-referenced to the industry-standard #47 / T47 lamp, with the same function and fit as the original. The workhorse bulb for pinball machine playfield and backbox lighting, and the standard pilot light for most Fender tube amplifiers.
Key features
- Exact-match replacement for the #47 / T47 miniature lamp spec
- 6.3 volts, 0.15 amps, miniature bayonet base (BA9s) — push in and twist
- Warm incandescent glow for playfield and backbox general illumination
- One of the two canonical pinball bulbs — used on nearly every machine
- Aftermarket equivalent — same function and fit as the original #47 lamp
Specifications
| Bulb type | #47 / T47, T-3-1/4 shape |
| Voltage | 6.3 V |
| Current | 0.15 A |
| Base | Miniature bayonet (BA9s) |
| Dimensions | 1.19 in. L × 0.43 in. dia (per bulb) |
| Product weight | ~3 oz (10-pack) |
| Color | Clear glass, brass base |
| OCS SKU | LIT025 x 10 |
| Replaces OEM part # | #47, T47 |
| Fits | Pinball machines (playfield & backbox GI), Fender tube amplifiers, vintage radios, jukeboxes |
Compatibility
These #47 lamps fit the following equipment:
- Pinball machines — general illumination (playfield and backbox) on virtually all titles; the #47 is one of the two standard pinball bulbs
- Fender tube amplifiers using a #47 pilot light, including Hot Rod Deluxe, Hot Rod DeVille, '65 Twin Reverb, '65 Deluxe Reverb, '65 Princeton Reverb, Super Reverb, '59 Bassman Reissue, Blues Deluxe Reissue, Blues DeVille Reissue, Custom Vibrolux Reverb, Vibro-King, and Super-Sonic models (not Blues Junior / Pro Junior — those use non-replaceable LED pilot lights)
- Vintage radios, jukeboxes, and other 6.3 V bayonet-base applications
OEM cross-reference
Replaces OEM part numbers: #47, T47.
This is an aftermarket equivalent part — not manufactured by the original equipment manufacturer. It matches the #47 lamp's size, shape, and fit, and is built to perform to the same standard.
What's included
- 10 × #47 miniature lamps
Bulbs are packed for safe shipment. Pinball restorers typically keep a full box on hand — the 10-pack covers a playfield refresh with spares left over.
Frequently asked questions
What does the #47 lamp replace?
The industry-standard #47 (also listed as T47) miniature bayonet-base lamp: 6.3 volts, 0.15 amps, T-3-1/4 shape. If your equipment calls for a #47 or T47 bulb, this is the direct equivalent.
Will these fit my pinball machine?
Yes — the #47 is one of the two canonical pinball bulbs, used for general illumination on nearly every machine, in both the playfield and the backbox. They install with a push-and-twist into any BA9s miniature bayonet socket.
Will these fit my Fender amp?
If your Fender tube amp uses a #47 pilot light, yes — that covers most Hot Rod, Reissue, and vintage-reissue models (Hot Rod Deluxe, Twin Reverb, Deluxe Reverb, Princeton Reverb, Blues Deluxe, and more). They do not fit the Blues Junior or Pro Junior, which use non-replaceable LED pilot lights.
Are these the brass-base or nickel-base bulbs?
These have the brass-colored bayonet base shown in the product photo. The base is what locks into the socket — brass and nickel bases are interchangeable in any BA9s socket.
How many do I need?
A typical pinball playfield uses a mix of #47 and #44 bulbs; a 10-pack covers a refresh with spares. You receive 10 lamps in this pack. For larger restorations, message us about volume pricing.