Not many choices left! :-)
Are you certain you're selecting the ACCY socket it's plugged in to?
Perhaps plug in where one of your 'working' crystals are currently. Dirty ACCY switch contacts can
be a problem when not selected for years.
It should peak around 6 on the PreSelector.
If you have another receiver that covers 22 MHz you could run a wire from the ext receiver antenna
to near the ACCY socket board on the back panel. If it's oscillating, you should be able to hear it
at 22.6 MHz. The fact that the CALIBRATOR isn't working tells me that the R-4A PreSelector is tuned
to a harmonic of the IF or PreMixer product, and the PTO therefore has no control over the
frequency, i.e., the receiver is not 'tuneable' but actually on a fixed frequency.
Crystals DO fail, but not very often unless physically or electrically abused.
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>
Neil M Califano wrote:
I's marked 22.6. The calibrator does work on the 20 meter band. It seems to
peak on the 9 position which makes no sense. Shouldn't the peak by around 7? I
got the crystal on Ebay from someone with a lot of positive feedback.
--- On Sat, 9/24/11, Garey Barrell<[email protected]> wrote:
From: Garey Barrell<[email protected]>
Subject: Re: New crystal not working
To: "drakelist"<[email protected]>, "Neil M Califano"<[email protected]>
Date: Saturday, September 24, 2011, 2:36 PM
OK.
What's the crystal 'marked' frequency?
Where'd it come from?? :-)
The PreSelector should peak about '6' on the '0-10' scale.
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>
Neil M Califano wrote:
At 14.0.
--- On Sat, 9/24/11, Garey Barrell<[email protected]>
wrote:
From: Garey Barrell<[email protected]>
Subject: Re: [Drakelist] New crystal not working
To: "drakelist"<[email protected]>
Date: Saturday, September 24, 2011, 2:18 PM
Where is the BAND switch set?
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>
Neil M Califano wrote:
I tried a 11.5 to 12 mhz crystal in my R4A and
the
radio is hearing nothing. The preselector peaks
the static,
but at 15 meters instead of 25 and the calibrator
does not
work. Nearby 31 meters and the ham bands work
fine. Could it
be the crystal?
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