[HBR] Initial test of 1st and 2nd IF coils

[C Eus]

All:
My Hitachi V-355 scope just came in and after fiddling with  it and my
Elenco SG-9500 signal generator, I was able to obtain some interesting
results with the initial testing.  I only tested one coil per IF circuit and
a Miller 262 kcs IF coil was actually resonating at 187 kcs while a British
1600 kcs IF coil resonated near 1080 kcs.  Definitely off frequency but I
suspect after tweaking, I can get them at the correct op. freq.

BTW, when measuring bandwidth on these coils, are they measured at the -6dB
points? I take it that -6dB down would be at the half power/voltage value of
the peak resonant frequency. Is that right?  If so, I put in about 3v p-p on
the Miller 262 kcs IF coil and it looks like it goes down to 1.5 v p-p at
184 kcs and 191 kcs respectively, or about a 7 kcs bandwidth (which seems a
little wierd since I was expecting a symmetrical bandpass but it turns out
to be slightly assymmetrical instead). Looking for comments on these
findings and thanks. Cal, N6KYR/4.