FERRITE 28C0236-0JW-10

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G5TV
Posts: 2
Joined: Mon May 04, 2020 10:34 pm

FERRITE 28C0236-0JW-10

Post by G5TV » Mon May 04, 2020 10:40 pm

It seems impossible to buy any of these without waiting months for stock to become available. Any one got any ideas where to find them or a alternative?
73 Brent G5TV

g4eml
Posts: 226
Joined: Thu Apr 26, 2018 9:36 am

Re: FERRITE 28C0236-0JW-10

Post by g4eml » Tue May 05, 2020 10:02 am

Farnell have plenty of 28C0236-0BW-10 in stock. They are the same core but wound to give axial wires instead of radial.

There is a spare hole in the core so you could easily just push the wire from one end back through it to make it radial. If the wire is not long enough then just add a new piece through the hole and solder it to the existing. That would turn it into a -0EW variant.

The only difference between the -0EW and the -0JW is an insulating strip over the wires. As long as you mount it carefully so that the windings do not touch the board you don’t need that.

Colin G4EML

M0SKM
Posts: 292
Joined: Sun Jul 13, 2014 3:15 pm

Re: FERRITE 28C0236-0JW-10

Post by M0SKM » Tue May 05, 2020 10:20 am

Hi Brent,
There is a bag full here. Send me your address to steve@(insert my callsign).com and I'll post three to you.

Steve

M0SKM
Posts: 292
Joined: Sun Jul 13, 2014 3:15 pm

Re: FERRITE 28C0236-0JW-10

Post by M0SKM » Tue May 05, 2020 11:56 am

Hi Brent,

My XYL will post this pm on her exercise walk.

73 Steve

g0mjw
Posts: 1170
Joined: Sat Sep 20, 2014 9:15 am

Re: FERRITE 28C0236-0JW-10

Post by g0mjw » Tue May 05, 2020 12:10 pm

Hi Everyone - don't over analyse the circuit - these are RF chokes and there is not a problem substituting something else, it won't make a huge difference. You don't need to have exactly the same parts, it's not a tuned circuit or anything like that, they are there to clean up the power supply lines.

Mike

G5TV
Posts: 2
Joined: Mon May 04, 2020 10:34 pm

Re: FERRITE 28C0236-0JW-10

Post by G5TV » Mon May 11, 2020 12:53 pm

M0SKM wrote:
Tue May 05, 2020 11:56 am
Hi Brent,

My XYL will post this pm on her exercise walk.

73 Steve
Hi Steve, The Ferrites arrived and are now on the board.
Once again Thank You Very Much!
73 Brent G5TV

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