Rev counter - Square Wave?

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suddy
480 Is my middle name
Posts: 981
Joined: Tue May 18, 2004 6:21 pm
Location: Lancs

Rev counter - Square Wave?

Post by suddy » Fri Jul 03, 2015 9:24 am

Hi All,

I've got some problems with my rev counter, so I've removed it, and I'd like to test it.

So, I *think* that accepts square-wave source, but I am looking for some more details - Voltage p-p and frequency range...

I've actually got different one in the car at the moment, but the dial face is the old-style font, might be easier to remove the needle - but can't see how without breaking it!

Kind Regards
Stephen
1995 480 S 2.0 220,000 Miles

Robou
Knows an Aerodeck isn't a 480
Posts: 258
Joined: Sun Jul 08, 2007 11:34 pm

Re: Rev counter - Square Wave?

Post by Robou » Sun Jul 05, 2015 9:52 am

Fingers (wash first!) under the complete needle, pull and at the same time turn anti clockwise. Ignore the protest, be brave.
Too old to bother
480 Turbo midst '91

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