On offer is a very LARGE roller-coaster tuning coil.

This roller-coaster measures about 3.00 inches x 4.00 inches x 10.00 inches; it has ceramic end plates and is mounted by four [4] screws through flange plates on each end. The coil is wound on a ceramic former, about 2.40 inches diameter and 7.00 inches long, and the diameter of the wire is about 0.13 inches [3.3mm], which equates to 10 SWG. I have been told that some of these older roller-coasters used silver or silver plated wire, but I do not know if this is one of those.

This was amongst the contents of the workshop of an engineer and 'silent key' radio amateur, who had been involved in many aspects of amateur, military and professional wireless over many years. As I do not have the time or facilities to test it, it is being offered as 'sold as seen’ with the eBay listing as 'For parts or not working', without guarantee or returns, in order to comply with eBay’s terms and conditions. The only thing that I have checked is that when the coil / drum is rotated, the roller traverses along its length.

These types of roller-coaster were popular with radio amateurs and home constructors during the 1950s / 1960s and are now virtually impossible to buy. This is an ideal opportunity to find the roller-coaster which has prevented you from starting the home construction project that you have waited years to begin. By the general size and construction of this example, I would guess that it will take considerable power.

Condition and description can better be judged from the photographs which are of the actual roller-coaster on offer for sale.

Oh yes....Sorry about the postage, but because of its size and weight it has to be well packed and sent as a Royal Mail 'medium' parcel.

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.

6. If you are unhappy with any of my terms and conditions please feel free to buy from another seller.

7. Royal Mail, again, increased their charges on 1st April 2024.

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