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10 MHz WWV TRF receiver - W4CWG design

The W4CWG design for a 10 MHz TRF WWV receiver was discovered on line. The receiver provides an accurate source of 10 MHz from WWV. This is my version of the receiver.

Schematic from W4CWG documentation. I discovered what I believe to be two errors on the schematic. Pin 14 of the IC is shown twice, I believe pin 11 is omitted. Pin 7 is shown as RSSI port, Pin 5 is correct RSSI port. Pin 7 is unmute audio out. I also added some 6-50 pf ceramic trimmer capacitors from my junk box in series with each crystal to trim them to 10 MHz. They are shown in red. A J310 FET and a 2N2222 used in the output stage. I followed W4CWG alignment procedure, Nulled the caps at 9.5 MHz. I did not include the three terminal voltage regulator, I am running my receiver off of a bench supply set to 5.0 volts. Toroids were wound on FT37-43 cores. Crystals were eBay HC-49S ten for $2.80 including shipping, from China

Side view RSSI, volts and ground.

The innards. Built using the Manhattan style of construction.

Scope view of the signals. I have been able to check the calibration of my HP3325A function generator to within a few tens of millihertz using the receiver. Great Box! Thank You W4CWG !

Data from W4CWG documentation. Black numbers are W4CWG data, Red numbers are my data under similar input conditions. I also added the p-p voltage out of the receiver.