Check the listing for details. FY6900 Accessory Bundle for Radio Alignment (RF Coupler, Instructions, Tools). Condition: New. Listed at 49.95 USD. If you already own the venerable FY6900 and want to use it to align collectible AM radios, or are interested in how to do that, here's a bundle with accessories that will help you get working like a pro; and save you a few dollars in the process. (The bundled items and shipping have been discounted.) Here's what you get:19 pages of illustrated, full-color, English instructions specifically about using the FY6900 for AM transistor radio alignment tracking adjustmentsA unique RF coupler that wirelessly sends alignment signals from the FY6900 to your radios Specialized, non-metallic alignment tools to fit the many RF coils and trimmer caps found in vintage radiosSave your gear, some time, money and your sanity. Unclutter your bench. Have some fun. Grab one of these bundles today. Prompt, careful shipping from the US as always. The InstructionsThe 19-page manual will get you aligning vintage AM radios moments after you plug in your new FY6900 signal generator. Topics include:A quick look at Superheterodyne radio theory and circuitryHow to connect your 6900 to a computer to simplify setup and operationHow to use the 6900 without your computer, if you likeA detailed description of the specific test frequencies and settings needed for alignment and tracking workHow to setup and save groups of FY6900 settings to speed up alignment and tracking workDescriptions of the FY6900's quirks, and their work-aroundsA step-by-step, illustrated example of a radio alignmentDozens of tips and tricksSuggested DIY accessories that you can make at homeAnd much more The RF CouplerThis compact coupler contains a loop antenna and the necessary capacitive isolation to be compatible with the FY6900 and similar devices. The plastic enclosure keeps those components safe. The case measures about 2" Long x 1-1/4" Wide x 5/8" Deep. (55mm x 35mm x 15mm). Depth at the connector extends to about one-inch (25mm). Its BNC connector makes it compatible with many contemporary generators besides the FY6900. I also separately sell cables that convert the BNC coupler connection to vintage Amphenol-style connectors used by RF generators such as those from Heathkit, B&K, Eico and others. The Alignment Tools This handy, non-metallic tool assortment is designed to help you quickly adjust IF coils, oscillator coils and trimming capacitors. They won't detune things as you work and fit many common transistor and tube radio coils and trimmers. PLEASE NOTE:This offering does not include the FY6900 itself. I do sell a more expensive package with the generator. Check out that package in my store:CLICK HERE to visit my eBay Store (ChildhoodRadio) where you will find more auction items, tools supplies and other items of interest to collectors. SIGN UP HERE to receive occasional emails when I launch new and unusual items. (This is what eBay calls their Newsletter feature.)