SKU: 84543719798

Two (2) NOS Beehive 2pF - 10pF variable trimmer capacitors - tubular piston caps

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Description

Two (2) NOS Beehive 2pF - 10pF variable trimmer capacitors - tubular piston capsBrand: Philips Mounting Style: Chassis Mount Type: Trimmer Capacitor Capacitor Construction: Variable Tubular Capacitor Capacitance Rating: 10pF Two (2 pcs) NOS professional variable capacitors 2pf 10pf. Rare Beehive Tubular Piston Caps! Made back in 60s probably by Philips. They are marked "804 20012 10pF" and are very solidly constructed, with silver plated connections and a ceramic core. Fully meshed the capacitance is ~15pF, falling to < 2pF when

Brand: Philips

Mounting Style: Chassis Mount

Type: Trimmer Capacitor

Capacitor Construction: Variable Tubular Capacitor

Capacitance Rating: 10pF

Two (2 pcs) NOS professional variable capacitors 2pf - 10pf. Rare - Beehive - Tubular - Piston Caps!


Made back in 60s probably by Philips. They are marked "804-20012 10pF" and are very solidly constructed, with silver-plated connections and a ceramic core. Fully meshed the capacitance is ~15pF, falling to < 2pF when open. 

Rarely seen these days, these are no longer made, but at one time were used extensively in both domestic and commercial radio equipment. The 'beehive' nick-name derives from the concentric construction, reminiscent of old-style beehives. These would be useful for repairing vintage sets with authentic parts or for general radio construction for trimming filters and oscillators. 

They are called "beehive" variable capacitor and you can find them also as "tubular" or "piston" variable capacitors. Despite they are of low total capacitance (like all trimmers), they are small in size compared to their big brothers, they have high-Q, they can handle quite a lot of power and voltage (500V), and due to their construction, they are finely-tuned, since they all have an embedded mechanical reduction drive (their screw)! I have found these trimmers to be backlash-free as well, which means that as you tune back and forth you do not skip frequencies due to backlash. Whereas in a standard trimmer the usable rotation is half turn at maximum, these trimmers have several turns to achieve the same capacitance variation. Moreover, these trimmers allow a knob to be easily mounted onto them.

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SKU: 84543719798

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Brandon
Port Orchard, US
★★★★★ 5
Great not only for TV Backlighting, but shelf lighting too!
Color: Black, Color: Black
Right off the bat, these light bars are vibrant, colorful, and have a great variety of different colors and patterns. However, I used them for a little bit of a different purpose than what they were created for... I had previously purchased the TV backlight strips from Govee, and wanted to find lighting for my shelves within the Govee ecosystem. Traditional light strips wouldn't really work unless I spliced them, which I wanted to avoid. Enter these light bars. I bought 2 sets of them, and thanks to the (quite strong) mounting options, was able to mount and angle these lights downwards to create a really cool effect over my displays. I wasn't sure how well it was going to work, but the end results speak for themselves. It looks terrific when used in this role. The cables are very long and manageable too, I was able to run them down the support beams of the shelves with some mounting clips without issue. The only negative comes down to the app itself. It's a bit overwhelming and confusing to use at first, but once you get the basic functions figured out, there's little issue. Still, I feel the user experience could be improved on the app. For example, I had to go in and create my own shortcut function to turn on all my lights at once, then make a separate one to turn them all off at once, as opposed to there being a single master on/off button in the app. It's small things that can make the app tedious to work with. Regardless, I feel that overall Govee continuous to knock it out of the park. The lights are bright, customizable, and add a ton of ambience to the room. I hope Govee continues to expand on their different room lighting options and keep the level of quality they are putting out now.
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Reviewed in the United States on May 7, 2024
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Concerned Buyer
Fort Morgan, US
★★★★★ 5
Looks good, feels good for my pocket.
Good price, while still being stylish. Slots fit all my major items shown above and now I cannot live without it.
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Reviewed in the United States on May 18, 2025
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Akwei Bortey
Pawtucket, US
★★★★★ 5
Functional and aesthetic
Does what you expect it to do. Great for organizing, very functional and very easy to incorporate into your table design.
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Reviewed in the United States on April 26, 2025
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AEckert
Waukegan, US
★★★★★ 5
Great purchase
My husband loves this so he has a place to put his phone wallet and keys and always knows where they are. Great idea! Small, keeps you organized, solid, good looking and gets the job done!
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Reviewed in the United States on October 24, 2024
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Darwin
Houston, US
★★★★★ 4
Cool piece
My messy night table looks clean for a few nights, then junk just piles up on top of this tray. But that might just be a me problem
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Reviewed in the United States on May 20, 2026

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