Yes, these are the bulbs that go into the Century IV AP control head.
Chris T
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
October 22, 2025
 
👍👍👍👍👍
Bellotto F
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Verified Purchase
GE Bulb GE-327 28V .04A
August 14, 2025
 
Perfect bulbs (form, fit, function) and source (price, delivery, packaging).  I love Aircraft Spruce, my first stop for anything.
Jeffrey T
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
August 9, 2025
 
Alpine H
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Verified Purchase
GE Bulb GE-327 28V .04A
June 2, 2025
 
the order went smoothly. Light bulbs worked great. Fast shipping. Steve
Robert N
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Verified Purchase
GE Bulb GE-330 14V .08A
May 24, 2025
 
Kim W
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Verified Purchase
GE Bulb GE-330 14V .08A
March 13, 2025
 
Good Performance
Wayne S
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Verified Purchase
GE Bulb GE-327 28V .04A
November 14, 2024
 
Standard bulb for illuminating panels and indicator lights. Also consider LED equivalents.
Daniel H
 Verified Purchase
Verified Purchase
GE Bulb GE-327 28V .04A
October 16, 2024
 
Works as expected.
Kraig S
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Verified Purchase
GE Bulb GE-330 14V .08A
August 21, 2024
 
Great product/price/delivery!!!
Marco R
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Verified Purchase
GE Bulb GE-330 14V .08A
July 19, 2024
 
Works perfectly
Datchair L
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Verified Purchase
GE Bulb GE-327 28V .04A
July 9, 2024
 
Had what I needed
Christopher P
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Verified Purchase
GE Bulb GE-330 14V .08A
May 13, 2024
 
I have not yet installed this bulb, but will advise when I do.
R. J
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Verified Purchase
GE Bulb GE-330 14V .08A
February 13, 2024
 
Received promptly and worked as itcshould
Phillip E
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Verified Purchase
GE Bulb GE-330 14V .08A
May 30, 2023
 
Perfect fit into my aircrafts post lights.
Henry D
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Verified Purchase
GE Bulb GE-330 14V .08A
May 30, 2023
 
Easy, fast, plugged in, works great. 
Mark H
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Verified Purchase
GE Bulb GE-330 14V .08A
May 18, 2023
 
Hard to find locally.  LEDs are stupid expensive.
Robert W
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Verified Purchase
GE Bulb GE-330 14V .08A
March 2, 2023
 
Exactly what I needed for Stall light. Packaged and boxed very well. Fast turnaround time.
Richard M
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
January 31, 2023
 
Not sure how to review a light bulb... Does what it supposed too... Light up when voltage is applied and it performs as advertised
John C
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
January 26, 2023
 
this light fit great in my compass.
William M
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Verified Purchase
GE Bulb GE-330 14V .08A
October 21, 2022
 
Gary D
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Verified Purchase
GE Bulb GE-327 28V .04A
October 7, 2022
 
Dan B
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
September 17, 2022
 
Arrived in perfect condition and very quick delivery.
Works great, thanks again 
Ron
Ron B
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GE Bulb GE-330 14V .08A
August 22, 2022
 
Excellent overall!  These are original GE bulbs in a box of 10.  Received quickly and priced right. 
David B
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Verified Purchase
GE Bulb GE-327 28V .04A
June 29, 2022
 
Thankfully not expensive as a short has been hard to trace! 
Cristina G
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Verified Purchase
GE Bulb GE-330 14V .08A
March 3, 2022
 
This item was 100% perfect for my application. 
Brent F
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Verified Purchase
GE Bulb GE-330 14V .08A
February 23, 2022
 
Lights up my life... er, compass. 
Mike R
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
January 21, 2022
 
Hugh A
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Verified Purchase
GE Bulb GE-327 28V .04A
January 17, 2022
 
Fast delivery, good product, used an awful ot of packaging for size of order.
Stephen Z
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
September 3, 2021
 
Great quality product.  Super service too!
Vincent L
 Verified Purchase
Verified Purchase
GE Bulb GE-330 14V .08A
July 13, 2021
 
Works well and a fast, well packaged delivery.
Jay S
 Verified Purchase
Verified Purchase
GE Bulb GE-327 28V .04A
June 9, 2021
 
Be aware that the Airpath compasses use a centre negative bulb housing. That is, the outer casing of the holder is normally the positive terminal. I presume this is the prevent the flip lid holding the bulb in from being live to the touch. 
This is the opposite of convention where bulbs are generally centre positive. These are found in most but not all post lights, for example, some Beechcraft use a centre negative bulb in their post lights.
This difference can be important if you are considering replacing your GE 330 bulbs with LED equivalents that are polarity sensitive.     
John M
January 21, 2017
 
Muriel W
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Verified Purchase
GE Bulb GE-330 14V .08A
April 3, 2023