The photograph on the left is of the top of the Hallicrafters S-119 with the cabinet removed. This picture displays the tube compliment and some of the other major components that are found on the top of the chassis. This picture was taken shortly after the receiver had arrived and shows the damage that occurred by the shipping company. Notice the bent front panel in the bottom right corner of the photograph. The picture on the left is a close up of this damage.
In order to do an alignment on this receiver the technician will need just a few basic service tools. These items include a signal generator which must cover the frequency range of 455 KHz to 16.5 MHz, a non-metallic screw driver, a 47 ohm non-inductive resistor, and a way to connect an output meter or the AC scale on a VTVM(Vacuum Tube Volt Meter) to the headphone jack. The first step in the alignment procedure is to turn on the receiver and the signal generator and allow each of them to warn up and stabilized. Around a half an hour will often suffice. The next step is the proper initial settings of the controls on the front of this receiver. Set each of the controls as follows, band switch to band three, main tuning control to mid-range, the speaker/phones switch to phones, the voice/code switch to voice, and the volume control should be set to maintain a half-scale reading on the output meter or VTVM. For all of the adjustments below, the VTVM is connected to the headphone pins on the rear apron of the chassis.
There are normally at least two alignments that must be preformed on a receiver. It is important to always do the IF alignment first and the RF alignment last. This receiver is no different and the IF alignment is preformed first. The Intermediate Frequency(IF) of this receiver is 455 KHz.
For the IF alignment connect the positive lead of the signal generator to the front section of the stator plates on the main tuning variable capacitor and the negative lead to the chassis. Tune the signal generator to produce a 455 KHz 30% modulated signal at 1000 cycles per second. Now adjust the primary and secondary slugs first on L7 and then on L6 for a maximum indication on the meter. The primary and secondary of points L7 and L6 are located on the top and bottom of the left rear corner of the chassis. Be sure to repeat this process for top performance of the receiver. That's it, the IF alignment is all done.
The RF alignment is just as easy but a touch more tedious. It involves changing the frequency of the receiver for each band and matching this frequency with the signal generator. There will be a total of eight frequency changes that will need to be made. One thing to keep in mind is that it is some times helpful to run through each band a second time for a final tweaking which will yield superior receiver performance before moving on to the next band. The cabinet top must be in place for the adjustments on band one. The reason it is done this way is because the calibration of the trimmers will be slightly effected by changes in the capacity between the cabinet and the receiver's components when the cabinet is in place for normal use. If the alignment is done with the cabinet off, the settings will change once the cabinet has been installed. Simply invert the cabinet and allow it to rest on the front and back panel for these adjustments. The cabinet can then be removed for the adjustments on bands 2 and 3.
Lets begin, receiver functions should be set as described above. The VTVM is connected to the headphone pins on the rear apron of the chassis for the entire RF alignment. Tune the signal generator to 535 KHz and connect it to a loop of wire and place the wire in close proximity to the chassis of the receiver. Set the band switch to position one and fully close the main tuning variable capacitor. With this done, carefully adjust point L5 which is located on the top of the chassis for a maximum indication on the meter. Next, fully open the main tuning variable capacitor on the receiver and tune the signal generator to 1.64 MHz. Adjust point C1D, which is located on the top of the chassis and on the left side rear section of the main tuning variable capacitor, for a maximum indication on the meter. Now set both the signal generator and receiver to 1.4 MHz and adjust point C1C, which is located on the top of the chassis and on the left side front section of the main tuning variable capacitor, for a maximum indication on the meter. That's it for band one.
With band one completed it is now time to move to the second band. Tune the signal generator to 2.0 MHz and connect the positive lead to the 47 ohm resistor and connect the resistor to the antenna terminal on the rear chassis apron marked "A". Connect the ground lead of the signal generator to the antenna terminal marked "G". Set the band switch to position two and fully close the main tuning variable capacitor. Adjust point L4 which is located on the top of the chassis for a maximum indication on the meter. Next fully open the main tuning variable capacitor and tune the signal generator to 5.5 MHz. Adjust point C14B which is located on the top of the chassis for a maximum indication on the meter. Now tune both the signal generator and receiver to 2.5 MHz and adjust point L2 which is located on the top of the chassis for a maximum indication on the meter. It will be noticed that point L2 has two peaks. The correct peak will be the second one from the bottom of the coil. That's it for band two.
For the final band we leave the signal generator connected to the antenna terminals the same as in band two. The band switch is placed to position three. Tune the signal generator to 5.7 MHz and fully close the main tuning variable capacitor. Adjust point L3 which is located on the top of the chassis for a maximum indication on the meter. Now tune the signal generator and receiver to 15 MHz and adjust point C14A which is located on the top of the chassis for a maximum indication on the meter. That's it, you are now done.
All of the adjustments above will need to be done with the non-metallic screw driver. For safety reasons, do not preform this work alone or if you are tired. It is not worth your life.
Radios by Hallicrafters with Price Guide by Chuck Dachis
Hallicrafters owners manual
Sam's photofacts by Howard W. Sams & Co., Inc.