1.5uh adjustable inductors

Mouser or Digikey

Yea I've checked them both out and neither have a 1.5 - Mouser were the closest but minimum order was 500 and that's a bit out of my range at the moment. One of the larger on-line parts retailers here in the UK have a few listed but are marked as discontinued. I thought they were widely used parts, from AM radios to theramins, I've seen plenty of schematics and projects that use them so surely thay can't be that hard to find! I have a few old radios I could rip some out of, but I don't know an easy way of finding out what the inductance is of an inidentified part.

Regards, Mike

Try the Aussies. Search for Silicon Chip Magazine and you'll be led to vendors who will ship.

You could try

Had a look to the Silicon Chip Online site and couldn't find any working links to retailers. Maybe I'm just going mad but surely, the circuit was designed THIS YEAR so I just can't understand why this part is so tough to get hold of. If it'd been designed in 1982 I could understand it...Thanks for the help anyway. Anyone else got a UK based clue for me?

=_NextPart_000_257D_01C6E8B6.EEDF2090 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

part

based

Jaycar Electronics stores & dealers throughout Australia (head office Sydney, tel (02) 9741 8555=20 Dick Smith Electronics stores & dealers throughout Australia (head office Sydney, tel 02 9642 9100=20 Altronics stores in Perth, dealers around Australia |(head office Perth, tel 08 9328 1599=20 Oatley Electronics mail order only, tel 02 9584 3563=20 DIY Electronics (HK) Ltd PO Box 88458, Sham Shui Po, Hong Kong Voice: 0011 852 2304 2250 Fax: 0011 852 2729 1400=20 Ozitronics Australian online kit manufacturer and designer. Located in Melbourne, Australia.=20

Printed circuit boards and programmed PIC chips for SILICON CHIP = projects are available from RCS Radio, Sydney, tel (02) 9738 0330

in

Australia.

CHIP

Just checked them out, no luck. Plenty of fixed axials on a couple of them, but no adjustables. I've mailed the designer of the board now to see where he gets his parts from!

OK. It's a pretty small inductor - he may just wind them.

What configuration is required for the inductor. I *assume* for the moment that you want slug-tuned. What size limitations, and wire spacing for mounting to the board. I may be able to wind you a couple, but I'm not sure the form would be the same for each of them - I need to find my stash of small coil forms.

Don

size=2>news: snipped-for-privacy@m7g2000cwm.googlegroups.com >> ONT

understand

designed

Anyone

Electronics

Hi Don,

That's exactly what I'm trying to find out from the designer :-) I have a suspicion that the project is going to grind to a halt since it also uses two LM387s which are nowmore trouble than it's worth to get hold of :-( Oh well, love will find a way! Thanks to all for the help.

Regards, Mike

I suspect that 1.5 uH would be a "wind in space - squeeze turns to adjust" type of coil.