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Reviews Categories | Receivers: Vintage amateur | Hammarlund HQ-120X Help


Reviews Summary for Hammarlund HQ-120X
Hammarlund HQ-120X Reviews: 1 Average rating: 4.0/5 MSRP: $$120
Description: Type: General Coverage
Modes: AM/CW
Tubes/Stages: 12/ 1-RF, 3-IF
Audio Output: 6V6/2.0W
Product Detector: None
Filter: Xtal (HQ-129X)
1938-1944
Size: 11.0"h x 20.25"w x 13.5"d
Approx. Weight: 58 lbs
Tube Complement: 6S7 rf, 6K8 conv, (2) 6S7 if, 6F6 if, 6H6 det/avc, 6H6 nl, 6J7 bfo, 6SF5 meter amp, 6V6 af out, VR-150 vr, 5Z4 rect.
Product is not in production.
More info: http://
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You can write your own review of the Hammarlund HQ-120X.

W3DBJ Rating: 4/5 Aug 3, 2010 12:50 Send this review to a friend
Hamamrlund classic receiver for the radio amateur  Time owned: 3 to 6 months
The HQ-120X is largely overlooked by the modern radio amateur, with the Super Pro series being renowned for their performance.

It's important to remember that the Super Pro series weren't designed with the amateur in mind, but were professional grade receivers. The amateur line, however, included the HQ-120X.

The difference between the HQ-120 and HQ-120X is the crystal filter. As time progressed, HQ-120s were phased out, and all HQ-120's were sold in the 120X configuration.

This receiver has been recapped, and has had out of tolerence resistors replaced, and has a new tube compliment. After 15-20 minutes warm-up time, the receiver works and sounds great on AM broadcast and Shortwave broadcast bands through the 8 ohm speaker. Unusual for a rig of this era, the audio transformer output is actually 8 ohms.

Switching to the amateur bands, by setting the dial to the suggested frequency in the owners manual and using the bandspread feature, resolves good CW with the RF down and AF up. It adequately resolves SSB, but when two stations are 3KC apart, the broadband nature of the receiver means that you will hear some squawking with your signal. However, you can leave the rig, come back half an hour later, and still hear the same stations having a rag chew, which meaks this receiver unusually stable for it's time.

Compared to modern receivers, it's lack of narrow filtering means it would rate very low, but compared with other receivers of it's time, I would give it a 4 out of 5. It's a great useable General Coverage receiver for the shack, and can be used for AM nets and CW in a vintage shack, but it would not be suitable for SSB reception, especially mid-level or lower level signals due to the need to reduce RF gain to resolve SSB.

An extrnal BFO circuit and additional filtering modifications could make this a good useable vintage ham receiver, but it would still be lacking for SSB.
 


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