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 Forum index » DIY Hardware and Software » Thomas Henry designs
Any reasonably priced 2K tempcos in UK?
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Mick Bailey



Joined: Jan 07, 2010
Posts: 15
Location: England

PostPosted: Tue Mar 02, 2010 2:14 pm    Post subject: Any reasonably priced 2K tempcos in UK? Reply with quote  Mark this post and the followings unread

Just looking round to see if anyone knows a reliable source of 2k tempcos in the UK for a reasonable price. If not, is there an easy and cheap substitute to retro-fit into my VCO-1 and XR-VCO? I built them without and they do drift a little bit too much so I'd like to stabilise them.
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prgdeltablues



Joined: Sep 25, 2006
Posts: 222
Location: UK
Audio files: 12

PostPosted: Wed Mar 03, 2010 9:07 am    Post subject: Reply with quote  Mark this post and the followings unread

Farnell have 1k 3000ppm tempcos at £1.01 each:

http://uk.farnell.com/jsp/search/productdetail.jsp?SKU=1174306

As far as I'm aware, you could use two in series to be equivalent to a 2k tempco. Not quite the ideal co-efficient, but better than nothing?

Peter
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Mick Bailey



Joined: Jan 07, 2010
Posts: 15
Location: England

PostPosted: Wed Mar 03, 2010 12:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Peter,

Thanks for the link - should work out ok with some of these. I also intend to relocate my PSU to cut down on temperature rise inside the case.

Mick
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magman



Joined: Feb 04, 2009
Posts: 363
Location: Liverpool, UK

PostPosted: Wed Mar 03, 2010 1:39 pm    Post subject: Reply with quote  Mark this post and the followings unread

You could also look at using an SMD tempco, like this one:

http://uk.farnell.com/tyco-electronics/lt7330002k0jtg/resistor-temperature-sensing-2k/dp/1174312

Something like what Dave Brown did here:

http://modularsynthesis.com/magicsmoke/mankato/mse.htm

Regards

Magman
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forbin



Joined: Jan 29, 2009
Posts: 120
Location: Fremantle, Australia

PostPosted: Fri Mar 19, 2010 1:01 am    Post subject: Reply with quote  Mark this post and the followings unread

Hmm by the time they get to Australian Farnell the price has gone from 1 pound to $6.50AU!!! the current exchange rate it should be $1.60... postage and storage must be a bit expensive over here...
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