On Thu, 23 Aug 2007 12:17:26 +1000, "Phil Allison"
wrote:


"Keith G"

I don't mind admitting that most of the information on this page:

http://www.apah69.dsl.pipex.com/show/Tuner.JPG

flies right over my head, but it's all very interesting! What is paragraph
5 saying - that my *analogue* tuner is carrying out A/D and D/A
conversions..??


** A " sample and hold " is an ANALOGUE circuit.

http://en.wikipedia.org/wiki/Sample_and_hold


The blurb in that para is all gobbledegook.


Why are you talking about sample and hold? It uses a monostable with a
duration roughly half the repetition rate.

d

--
Pearce Consulting
http://www.pearce.uk.com