Royal 400

I feel the Royal 400 is a very underrated radio. They were introduced about the same time as the famed Royal 500H, which stole all their thunder. However, the Royal 400 featured the same large oval extended range speaker. The performance of the 400’s was excellent with this large speaker and they were very sensitive with their gear reduced Vernier tuning.

The 400’s large metal grill is beautiful on well preserved examples. They were offered in black or white with gold grills, and two-tone brown or two-tone green with matching grills. I like the beautiful two-tone green version the best.

Black Royal 400 Fact Sheet


Radio: Royal 400
Year introduced: 1961
Cost New: $39.95
Colors: Black, White, two-tone Green,

and two-tone Brown

Dimensions: 5.75″ H, 3.75″ W, 1.5″ D
Weight: 17 ounces
# of Transistors: 7
Powered by: 4 AA batteries
Undistorted output: 100 Milliwatts

Check out these Royal 400 radios.

Brown Royal 400
White Royal 400
Green Royal 400
Black Royal 400

4 thoughts on “Royal 400”

  1. I found a 400 two tone green in a closet today , in a house we recently purchased I don’t know if it works because I don’t have any batteries but plan to get some would you be interested in buying it

  2. Hi. just cheking your site, know by 2018 Vintage Electronics Expo Kalamazoo MI tour Tube radios D-Lab .
    from Tampico Mexico.

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