[Test-Equipment] Source for miniature lamps?

[Barry]

Hi Joe,

Actually, these are not CM328's.  I have a box of those and they are 200mA bulbs.  The CM350 is a 150mA bulb which is what the design calls for.  I've cobbled together a string of three CM328's and they will work, I just don't like disippating the extra 3/4W when they're at full illumination.  The control transistor can well handle the extra current, though, and I may just stick with these.

Another list member has offered some CM350's so I may go that route.

Thanks for the offer, though!

73,
Barry - N4BUQ


 On Tue 29/05/12 11:24 AM , "Joseph Orgnero" josepho at shaw.ca sent:
> Barry,
> The lamp you refer is the # 328 (6.3V, 200 mA), I have 3 of them, also 1
> ea. # 337 (200 mA) and # 345 (400 mA). I can send them to you for the cost of
> mailing.
> Let me know.
> Joe Orgnero  VE7LBI
> ----- Original Message ----- 
> From: "Barry" n4buq at knolo
> gy.net>To: test-equipment at mailman.qth.net>Sent: Monday, May 28, 2012 5:36 PM
> Subject: [Test-Equipment] Source for miniature lamps?
> 
> 
> > Anyone know of a source for 6.3V, 150mA, T1.75
> lamps (e.g. CM350 from > Chicago Miniature, etc.)?  I can find them with
> minimum quantity of 10 and > $8 or better for shipping.  Considering I only need
> three, $15 to $20 for > them is more than I can justify.
> >
> > Thanks!
> > Barry - N4BUQ
> >
> >
> ______________________________________________________________> Test-Equipment mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/test-equipment> Help: http://mailman.qth.net/mmfaq.htm> Post: Test-Equipment at mailman.qth.net>
> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> 
> 
> 
> 
> 
>