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Old 25th Jan 2020, 2:39 am   #10
Chris55000
Nonode
 
Join Date: Aug 2007
Location: Walsall Wood, Aldridge, Walsall, UK.
Posts: 2,868
Default Re: 'Ferrite Pot Core Pairs'?

Hi!

I might be able to offer a tip:–

I don't know how many he has – I bought one – but enter:–

"Core fi26 AL5000 M4" in an eBay search –

. . .this is a 26–27 mm pot core pair, gapped, with a base and pins – you can dismantle this to remove the pins and then place the assembly in hot water to separate the halves (suggested by seller) – only snag is the postage, £5.50 – is about five times the cost of the part, as it's from Poland!

Compared with paying £30 in p & p for Jaycar to import the thing from Oz or the daft multiple quantities RS, Farnell & Mouser etc., expect you to buy, it's about the cheapest you'll get as a one–off!

You do have to strip the old winding off it's bobbin tho!

Unfortunately EPE have deleted PCBs before Jan 2013 from their online store list, so I don't know if you can still buy EE 861 from them to make this! (I bought mine direct from Silicon Chip – it costs about £17.60 including postage – at the time I ordered mine the SC website showed a stock of 8!)

S.C. supply the F.P. artwork and the hex. free with each PCB order!

Chris Williams

PS!

The original plastic storage box used for building the prototype is still fairly readily available on eBay!
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Last edited by Chris55000; 25th Jan 2020 at 3:00 am.
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