Hallicrafters HT-4 AM Crystal Tuned Transmitter built 1939, SN:1882

HT-4 for the late 1930's civilian ham radio market and allied governments. This HT-4 does not have the "A","B", "C" etc suffixes the later models had that were used in US Military applications, e.g. the SCR-299.

According to a former owner of this unit, it was built in 1939. Only about 20 were built according to Bob Grinder, K7AK, Electric Radio #136 Sept 2000 p. 27)

For those who own a copy of Chuck Dachis' fine book on Hallicrafters, "Radios by hallicrafters", take a look on page 10: same model HT-4.

Tuning is crystal controlled. Tuning Units and Tank Coils can be configured depending on the band and frequency desired. Power input runs about 1600 watts, and power output is spec'd at 325 watts phone and 450 watts CW, though on the power meter on phone, it runs between 400-500 watts peak power. CW even higher.

It is nearly 95% original (some tubes replaced, capacitors, resistors, transformer rewound) and fully functional. It currently has one crystal for 3870 kc (3.870 MHz). I use it fairly regularly on the West Coast AM net at 3870 kc on Saturday mornings and even some evening QSO's. It is a lot of fun to operate.

Please send me an email through YouTube or post a comment if you have any questions or if want more detailed photos, you can see them at this URL http://www.kapwa.net/tester/main.php?g2_itemId=11237

Category:

Science & Technology

Tags:

• hallicrafters
• HT-4
• BC-610
• SX-28
• radio
• shortwave
• ham
• AM
• transmitter
• SCR-299
• WW2
• collins
• hammerlund
• marconi
• vacuum
• tube
• valve

[F1APJ]

Beautiful Hallicrafters SX28

TNX

73 christopher F1APJ

FRANCE

[ve3iku]

Beautiful Hallicrafters HT-4! I love the chrome strips around the meter panel, and the 6 meter windows. If you have a schematic I'd like to compare it to the BC-610 series.