Cpl meter q's

[daArry]

Hey...

time to get some meters...

are either of these okay for the la2a?:
http://custom1.farnell.com/cpc/product.asp?catalog%5Fname=CPC+Catalogue&product%5Fid=263255
http://custom1.farnell.com/cpc/product.asp?catalog%5Fname=CPC+Catalogue&product%5Fid=PM1111866

and for a dual 1176:
http://custom1.farnell.com/cpc/product.asp?catalog%5Fname=CPC+Catalogue&product%5Fid=PM1109766

Cheers!

 

[PRR]

They will probably work.

They are way too cheap to be true VU meters. Expect some calibration error on tones, and slow sloppy dynamics on speech/music.

On the other hand, for prototyping, they can be front-mounted in a very small hole (because they use a teeny mechanism behind a large face). So if you try it and want something better, you can enlarge the hole for a proper meter, which is easier than shrinking a hole.

 

[SSLtech]

This one:

is a cheap modutec. They come with external rectifiers and series resistors, all sealed in a "blob".

I have one, and they're not good at all. Certainly, for prototyping, they're okay, but don't invest any metalwork decisions or committments into one. Fir $25 you can probably get an AL series meter form sifam that comprehensively wipes the floor with this modutec, performance-wise.

Keith

 

[daArry]

right0, a cpl AL29s and a AL39 it is then :thumb:

 

[Kev]

There is an SEW meter from some of the budget suppliers that may be an option.

I'll see if I can find a link to explain better.
:roll:
http://www.delsound.com.au/test%20instr%20panel%20meters%209%2003.htm

that's best best I can do for now. :sad:

 

[Kev]

AT Radio Parts here in Melbourne, about a year ago, I think I paid $25 to $28 and I think that included GST.

still trying to find a link for Radio Parts and the meter.
http://www.radioparts.com.au/

got it !!
OUCH!
the price is up to $44 ... perhaps my memory was wrong about the $25
http://www.radioparts.com.au/ProdView.aspx?popup=1&Product=46185201

hope that works


I just remembered that ... you do need to add the diodes ... low leakage OA91 ?? help me out here :roll:

 

[NewYorkDave]

Since copper oxide rectifiers are tough to find, next best choice would be germanium, such as 1N34A.

 

[daArry]

right, was about to order from farnell but there seem a few dif lines available for the 29W - which one to pick?

http://uk.farnell.com/jsp/endecaSearch/searchPage2.jsp?showImages=true&manufacturerDisplay=true&viewType=&Nty=1&N=1003996%20401&Ntk=gensearch&Ntt=sifam&No=0&comSearch=true&specialorder=null

ta