Re: CM11A hangup: Any better products?

[Joerg <notthisjoergsch@xxxxxxxxxxxxxxxxxxxxx>]

Hello Dave,

> If you look at the schematic of the current RR501 you'll find about the same
> number of components, including the same tuned transformer that's used with
> the discrete oscillator, in the circuit driven by 120kHz from the PIC. It
> needs alignment, too.

I believe you mean the LC tank circuit. Yes, it needs aligment. But it
is only a peaking operation where all you need is level metering. A
circuit that is in an oscillator requires a frequency counter which is
more expensive in production. Assembling a diode concoction on the pogo
pins of a production tester is easy if it can't digest 120kHz directly.
However, measuring a frequency isn't possible with cheaper testers.

Regards, Joerg

http://www.analogconsultants.com