Hi everyone,

Transverter is now on correct frequency. LO was tunable through
this L7. And it is still oscillating after the pull

I was very pessimistic that this L7 would affect on freq. Thank you
for your advice. Btw, I have to say that this German piece of electronic
has really good quolity inside the box.

73 Pasi, oh2pt

"Eamon Skelton" wrote in message
news
On Sun, 04 Sep 2005 14:09:14 +0300, Pasi wrote:


What is the best way to know the value before i touch it? Should I
measure
the voltage after this coil - or how? And most probably there is
RF-voltmeter needed?

Pasi

It would be very difficult if not impossible to find the
exact inductance of L7 while it is in circuit.

Just count the number of degrees of rotation you make
to the tuning slug. You could mark the slug and former
with white paint or tipex before you start. If you don't have a
VHF frequency counter, you could use a 2M beacon as a frequency reference.
Most of the 2M beacons audible from here are correct to within +/- 200Hz.
GB3MCB is usually within 100Hz.

Even a very good crystal oscillator is unlikely to
be stable to less than 1 ppm, so there is little
point in trying to get an error of less than 100Hz.

73, Ed. EI9GQ.


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