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Reviews Categories | Receivers: General Coverage | Hammarlund SP-400 Help

Reviews Summary for Hammarlund SP-400
Hammarlund SP-400 Reviews: 1 Average rating: 4.0/5 MSRP: $$342
Description: The SP-400 is a superheterodyne single conversion general coverage receiver for
AM or CW from .540 to 30 MHz. There are 5 bands of which the top three have
band spread control. A wide range of selectivity is achieved using a variable crystal
filter and variable selectivity IF transformers. It includes a noise limiter and AVC.
The receiver uses 18 tubes and requires a separate power supply. Years of
manufacture were 1946-47.
Product is not in production.
More info: http://
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KK6IYM Rating: 4/5 Aug 15, 2016 14:14 Send this review to a friend
Wonderful old radio  Time owned: 0 to 3 months
I have just finished restoring my SP-400. When I initially applied power and turned up the volume, I thought the radio did not work. There was no sound-- even at full volume. I then touched the antenna terminal and a loud hum blasted out at me, including the sounds of a background radio station. This is quite an enjoyable radio, having very quiet reception, good sensitivity and selectivity with 2 tuned RF stages and tuned antenna circuits, and it looks great with typical Hammarlund styling. The BFO provides easy SSB reception--so lack of a product detector is not a problem. You will want to try and find a power supply. The bandswitch is quite unique--not like the rotating turret of the 600, but equally inventive. An easy radio to work on--much easier than the 600---and as good a single conversion performer as you will find.


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