On offer is a two [2] gang 550pF + 550pF air dielectric variable capacitor of standard size.  

It measures about 4.00 inches [including rotor shaft] x 3.00 inches wide x 2.50 inches to allow for the rotor swing and is mounted by screws, either into tapped holes on the front plate, or through holes in the back plate.

The rotor is mounted with a ball race at one end, a thrust bearing at the other and has a 0.25 inch diameter shaft which is about 1.50 inches long.

I have listed it as 550pF + 550pF but the actual values recorded are 12.2pF to 544.8pF on one gang and 11.7pF to 553.4pF on the other, as measured on a Peak LCR40 component analyser - see photographs 9, 10, 11 & 12 [for info] and is in working order. It has been suggested that this capacitor dates from the 1940s or early 1950s.

This is an ideal opportunity to obtain a capacitor to replace one that is missing in a restoration project, as the basis for your home constructed HF or broadcast band receiver, ATU or other RF project.

Description and condition can better be judged from the photographs which are of the actual capacitor on offer for sale.

This has been priced to sell, without reserve.

Please see the other items which I have on offer for sale.

BEFORE BIDDING, PLEASE READ ALL OF THE TERMS AND CONDITIONS BELOW.

1. PLEASE LOOK CLOSELY AT ALL OF THE PICTURES; THIS IS THE EXACT ITEM ON OFFER AND FORMS THE DESCRIPTION WHICH MAY TELL YOU SOMETHING THAT I HAVE NOT MENTIONED.

2. BUYERS PLEASE NOTE THAT PURCHASES ARE PACKED AND SENT IN BOXES, NOT PADDED BAGS, IN AN ATTEMPT TO PREVENT DAMAGE IN TRANSIT.

3. I WILL TRY TO COMBINE POSTAGE ON MULTIPLE PURCHASES WHERE POSSIBLE, PROVIDING THAT THE COMBINED WEIGHT DOES NOT EXCEED 2KG. IF IT DOES I WILL TRY AND PACK AND POST PARCELS WITH THE MOST BENEFICIAL COMBINATIONS.

4. OVERSEAS BUYERS PLEASE NOTE THAT I ONLY SEND PURCHASES THROUGH eBay Global Shipping Program. CHECK eBay CHARGES BEFORE BUYING AND NOTE THAT I CANNOT COMBINE POSTAGE COSTS WITH OTHER GOODS PURCHASED. EACH PURCHASE WILL BE PROPERLY PACKAGED AND THE POSTAGE STATED WILL BE CHARGED.

5. THE GLOBAL SHIPPING PROGRAMME ALREADY PROVIDES THE BUYER WITH AN INVOICE FOR ALL APPLICABLE ITEMS, POSTAGE AND IMPORT CHARGES. Unfortunately, eBay will NOT allow me to edit these charges, or even to offer a P&P discount. The buyer will directly pay the purchase price of the item to me, plus any domestic postage cost as specified in the listing.

DOL261123.