EF Johnson 160-203 Miniature Butterfly Variable Capacitor: 1.5-3.1pF: NOS

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Location: Westerly, Rhode Island, United States
Ships to: US,
Item: 303253107150

Condition:New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is … Read moreabout the conditionNew: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller’s listing for full details. See all condition definitionsopens in a new window or tab
160-203:160-203
MPN:n/a
EF Johnson:EF Johnson
Type:capacitor

eBay EF Johnson 160-203 Miniature Butterfly Variable Capacitor: 1.5-3.1pF: NOS Description: A butterfly capacitor is a form of rotary variable capacitor with two independent sets of stator plates opposing each other, and a butterfly-shaped rotor arranged so that turning the rotor will vary the capacitances between the rotor and either stator equally. Butterfly capacitors are used in symmetrical tuned circuits, e.g. RF power amplifier stages in push-pull configuration or symmetrical antenna tuners where the rotor needs to be “cold”, i.e. connected to RF (but not necessarily DC) ground potential. Since the peak RF current normally flows from one stator to the other without going through wiper contacts, butterfly capacitors can handle large resonance RF currents, e.g. in magnetic loop antennas. In a butterfly capacitor, the stators and each half of the rotor can only cover a maximum angle of 90° since there must be a position without rotor/stator overlap corresponding to minimum capacity, therefore a turn of only 90° covers the entire capacitance range Specifications: Capacitance: 1.5-3.1pF Plate Spacing: .013” Peak Voltage: 850V Shaft Diameter: 3/16” (Slotted for screwdriver adjustment) Bushing Diameter: 1/4″ Dimensions: 3/4″ Wide x 5/8” High x 9/16” (Not including bushing or shaft) Manufacturer: EF Johnson Mfg. Part Number: 160-203 Listing is for one (1) piece. We always combine items to save you on shipping when possible. Always request an invoice before paying when buying multiple items. Be sure to check out our other Ebay listings. A Note to International Customers: First I want to say that when we receive an order, it is shipped promptly within 1-3 days. Once the order is brought to the post office and shipped, it is out of our hands. Delivery outside of the United States can take anywhere from 1 week all the way up until 12 weeks (Typical though is one to four weeks). There are numerous reasons for the delay. Typically, packages are delayed in customs, first in the United States and then in overseas customs. We cannot control the time packages are in customs. If you contact us to see where your item is, and we tell you it has been shipped, that is all we can do. On small packages, we do not use delivery confirmation because of the high cost. The cost to use confirmation overseas will far exceed the price of the item purchased. If the package has not arrived by 12 weeks, we will issue you a refund or a replacement if the item is available. According to Ebay statistics, only 19% of sellers in the United States will ship overseas. And according to Ebay surveys, those who do not ship overseas site customer complaints from long delivery times as the reason. We have chosen to do business with our international friends. However, we ask for your patience. Too often we get emails asking where my item is when it has not even been a week or two. Our next choice will be to either discontinue international sales or charge for delivery confirmation which will add considerably to the cost. Please be patient. Note, it is the responsibility of the buyer to pay all and any custom fees. We do not know how much these fees are. You will have to inquiry within your own country. Thank you

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