Two (2) NOS Beehive 2pF - 10pF variable trimmer capacitors - tubular piston caps
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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Love it!
This product is always a great product! I feel so much better with this product. Researching, I found that melatonin is important in removing toxins from our bodies, and I do feel better when I take this product. If I do not take melatonin for a while then I feel sluggish and ill, and once I start back up I feel better. I like sublinguals too.
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Jennifer Giles
Houston, US
★★★★★ 5
Best I have tried
Source naturals is the best brand of melatonin that I have tried. I have been using it for years to help me stay asleep. I typically fall asleep fine, but where I run into issues is staying asleep or if I wake after a few hours of sleeping. The melatonin helps me fall back asleep faster and I feel refreshed the next morning. You will probably want to experiment with the dosage, I have found that the 5mg works best for me. And I like the peppermint flavor in lieu of the orange simply because I have usually just brushed my teeth before slipping this under my tongue.
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Reviewed in the United States on June 15, 2018
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R. Miller
New York, US
★★★★★ 5
My Most Reliable Sleep Aid
I've had issues falling asleep and staying asleep ever since I was a teenager, but for well over a decade, I've been able to count on melatonin to help me sleep better. This under-the-tongue version of it seems to work the best, being absorbed into the bloodstream. It helps get me to sleep relatively quickly while also helping significantly with keeping me asleep. I use one of these every night. I'd strongly recommend using these as well before turning to prescription sleep aids. They can also work well in conjunction with prescription sleep medicine if necessary.
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Reviewed in the United States on August 31, 2019
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H. L. Hanson
Dallas, US
★★★★★ 4
This is a good product but the peppermint flavor is too overpowering
The sublingual Melatonin is ideal for traveling because it works almost instantly, so you can get to sleep faster than usual. I normally buy the orange flavored version and ended up with this peppermint one by accident (not paying attention), I found the taste much too strong and it seemed to create a burning sensation where I placed it under my tongue. I will stick to the orange version in the future.
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Coco Kelly
West Palm Beach, US
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I particularly love the sub-lingual
I've been using melatoning for yeeeears. I particularly love the sub-lingual. I use the 5 mgs and take two every night just as I go to bed and within minutes I'm asleep. I wake up rested and refreshed. Note: You have to be very patient with the dosage. Start with one..then add 1/2 a pill or another one. It works! The key is getting the exact dosage for you because we are not all the same. For example: I always take two. Very rarely I need one more, how do I know? Well, if I can't get to sleep within a reasonable amount of time I will take a third. Now, if I do this a couple of days in a row I start to wake up a little tired in the morning. Now I know I have too much melatonin in me so I may not take it the following night at all until my own body tells me it needs it.
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Reviewed in the United States on July 8, 2014

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