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Baluns and Ferrites
Baluns, Chokes, Isolators, UnUns and Ferrite Toroids for HF+VHF. We offer the best prices for FT140-43, FT140-61, FT240-31, FT240-43 and FT240-61 toroids in the UK - perfect for your balun projects. The following chart shows how different ferrite materials perform across HF. The green band indicates "resistive", which is desired for best performance. As you can see, 8 turns of coax on an FT240-31 will suffice. Coax can be RG316, RG58, RG8 "mini" or RG142 depending upon your power requirements.
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A general-purpose 1:1 Current Balun for use on HF with your 100w transceiver. This design uses..
£35.00
It's a bit of an animal - actually, it's a lot of an animal - A 1:1 Balun for use on HF (1.8-3..
£48.00
A 1:1 "micro" Balun for use on HF (best suited for 7-30MHz) for when you're out portable or need a l..
£17.00
If you're in need of a mains filter or ad-hoc RF choke, this snap-on 31-mix ferrite is a serious ite..
£14.50
A multi-ratio UnUn for use on HF (1.8-30MHz) with up to 200w RF power. Sometimes, a single rat..
£40.00
A 4:1 Current Balun (Guanella) for use with OCFD, Loops and other situations where your aerial is ..
£38.00
A 4:1 Current Balun (Guanella) for use with OCFD, Loops and other situations where your aerial is ar..
£45.00
A 5mm Snap-on ferrite clip for keeping RF out of keyboards/mice and other Shack peripherals. Works w..
£0.75
A 9mm Snap-on ferrite clip for keeping RF out of keyboards/mice and other Shack perhiperals. A few l..
£1.00
A 1:1 Choke/Line Isolator for use across HF frequencies and handles up to 1kW RF power (assuming 1:1..
£45.00 £42.00
This is a no compromise solution. A robust 1:1 Choke Balun for use with a Doublet or G5RV wher..
£45.00 £42.00
The CobWebb is a popular antenna due to its small size - it's a 5-band HF aerial, under 8ft square, ..
£60.00
The End-Fed Half-Wave is a popular choice for simple /P operating but can also be used equally well ..
£35.00
A small ferrite toroid for use in baluns and line-isolators. 8 turns of RG174 (100w) or RG316 (400w)..
£2.75
A small ferrite toroid for use in the G3TXQ 1:4 CobWeb balun.
175w AM/Digi, 250w SSB (assuming..
£3.00
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