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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Michelle
Bozeman, US
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These are without a doubt the most comfortable shoes/boots, I with a pointed toe, that I have ever worn. The heel is a perfect height to elevate your look without forcing your foot too far forward into the toe box. I have worn these all day long, and have never had them pinch my toes. I’ve even worn them walking through cobblestone streets in London without discomfort. These boots also look amazing with a skirt, dress, or even a pair of jeans. The color is rich and the suede is butter soft. They fit true to size. I wear a 6.5 M. I find this true with all of the shoes I own from Sam Edelman. The quality is much better than the price suggests. I highly recommend these boots. You won’t regret your purchase!
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runnersway
Belleville, US
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Calf shaft runs big
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Beautiful suede boots. The shaft does run a bit loose so if you’re on the fence about ordering a wide version you may want to try the regular size first. I sized up half a size so I could wear a sock but probably didn’t need to. The kitten heel height is perfect for my comfort. I liked these so much I got them in dark walnut and black.
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Carnegie, US
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Very nice quality
Size: 8.5, Color: Warm Oat, Size: 8.5, Color: Warm Oat
These boots are extremely comfortable and rich looking. I got the beige color.
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Waukegan, US
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Love this stylish boot!
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Stylish boot with low heel. Good suede and rubber no-slip sole. I purchased wide calf and they fit well. My calf measures 16.5 inches. I purchased also in brown and chianti colors.
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Boise, US
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Size: 8, Color: Black Wc
Disappointed I ordered them thinking they would arrive when they said they would and they did not! Ordered two pairs and run extremely big!
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Reviewed in the United States on July 31, 2025

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