Mark -
Yes.
I haven't worked on a 2-C for a while, but I believe the transparent dial will slip on the hub, much
like the B Series dials. Just hold the dial edge and turn the MAIN TUNING knob. If not, the you'll
have to loosen the dial drive set screw, slip it slightly on the shaft and retighten. The metal
MAIN TUNING knob skirt aligns just like the others, hold the skirt and turn the knob.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 2-C/2-NT, 4-A, 4-B, C-Line
and TR-4/C Service Supplement CDs
<www.k4oah.com>
Mark Nace wrote:
Hope there are some 2-C experts out there who can give me some alignment
advice:
First Question: For step A on page 18 of the manual, to center the 50 KHz BFO,
my generator doesn't go down that low, so I set it to 100 KHz and cap-coupled to
pin 1, V5 and got a audio note, presumably from the 2nd harmonic of the BFO.
Adjusting T-11 zero beat the note. Seems like this is pretty similar to using
the 100 kHz crystal calibrator procedure at the end of the first paragraph. I
just need to see if I did it right.
Second Question: On step D (VFO alignment), they mention "sliding the dial". I
think they are talking about simply sliding the the vertical hair-line, but is
there any way to adjust the main frequency dial independent of the VFO to get it
right on the money (with the hair line centered)? Maybe this would be
over-kill....I am only one division off the same direction on 3.6 and 4.0 MHz.
Thanks very much. I have a cople of 2-C's on the operating table, I have
stripped this one, it is back together, and working. Just need to touch up the
alignment, and paint the cabinet. BTW, the three crystal oscillators were all
perfectly on the money.
73,
Mark
N5KAE
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