Hallicrafters · Receiver · 1955–1961
The SX-100 is a 1955 general-coverage Hallicrafters with SSB reception built in, and rigpix lists a QST review in December 1955. It tunes the broadcast band and 1.72 to 34 MHz, with calibrated bandspread for 80 through 10 m, so it works as a shortwave listener's set and a ham receiver. Like the later SX-101A, it's dual conversion on every band, with a 1,650 kHz first IF and an adjustable 50.5 kHz second IF that steps selectivity from 500 Hz to 5 kHz. Selectable sideband, a notch filter, a 100 kHz crystal calibrator and a noise limiter are all built in, and a phono input at the back lets it play records through its audio stage. Hallicrafters built it in Mark versions, and rigpix dates the run from 1955 to 1961. At 34.5 pounds, it's about half the weight of an SX-101A.
Bench check
Should come with it
Check the listing photos against this list, and ask the seller about anything you can’t see. A missing piece should come off the price.
Phil's Old Radios ranks electrolytic and paper capacitors as the most failure-prone parts in sets of this age, and says not to just plug one in untested. Ask whether it has been recapped, and whether a dim-bulb tester was used for its first power-up.
New to used rigs? How to check a used ham radio covers receive, the tubes and the dial, and buying vintage tube gear covers old capacitors, tubes and first power-up.
Buying guide
Only 4 SX-100s are for sale, so the $270 to $350 band isn't a market read. We'd start with yellowchoo's at $300 delivered from a 99.3% seller, a plain listing with no test claim. port409's at $200 with free shipping is cheaper but titled SEE DISC., so read what the description discloses first, and thesavvys93's at $380 is titled powers on but untested. Ask for a video on all four bands with the selectivity stepping down to 0.5 kHz, which Mark it is, and whether the filter capacitors were replaced.
$299.98est. delivered
The lowest-priced SX-100 here without a disclosure or an untested tag, at $300 delivered. The title makes no test claim, so ask for a video receiving on every band and which Mark it is.
Hallicrafters SX-100 Receiver Shortwave Ham Radio
Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 15, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used$299.98est. delivered
$249.99 + $49.99 shipping
Buy It Now$249.99
Good buy
No test claim. Another seller uses the same plain title, with a different radio in the photos.
Seller: yellowchoo
99.3% positive
Used$199.99delivered
$199.99 · free shipping
Buy It Now$199.99
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Titled SEE DISC., which usually flags a fault in the description. Free shipping.
Seller: port409
99.4% positive
Used$332.29est. delivered
$299.99 + $32.30 shipping
Buy It Now$299.99
Our take
No test claim. Same plain title as yellowchoo's, with its own photos.
Seller: blackslackslawn-7
100% positive
For parts$380.03est. delivered
$300.00 + $80.03 shipping
Buy It Now$300.00
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Titled powers on but untested.
Seller: thesavvys93
100% positive
Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 15, 2026.
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