On offer is a quality 40mH HF choke with a DC resistance of 275Ω, which is of an unknown manufacturer and dates from the late 1920s / early 1930s.

It is about 3.50 inches high; the base measures about 2.00 inches diameter, and the choke is mounted by two screws.  The connections are to screw terminals on the top and base of the case moulding. 

I have listed this as a 40mH choke, but the precise inductance 39.69mH and DC resistance 281.3Ω are shown in photographs 9 and 10 as measured on a Peak LCR40 component analyser [for info].

This is an ideal opportunity to obtain one of these chokes from the late 1920s / early 1930s, which are becoming more difficult to find, to use as a replacement in a restoration project or a choke in a home constructed project.

It is in new and unused condition, which can better be seen from the photographs which are of the actual HF choke 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, 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.

DOL22052024CATSRR1123C/YY.