Heathkit HW-22

Object/Artifact

-

Radio Alpha

Name/Title

Heathkit HW-22

Description

40 Meter SSB Transceiver

Category

Transceiver, HF

Made/Created

Manufacturer

Heath Company

Date made

1963 - 1966

Other Name

"Single-Bander"

Dimensions

Height

6-1/4 in

Width

12-1/4 in

Depth

10 in

Weight

12 lb

Valuations

Value

$119.95

General Notes

Note

The HW-22 is identical to the HW-12 except for frequency coverage. Frequency coverage for the HW-22 is 7.2 to 7.3 MHz. It operates only on LSB. Caution: Operate on 250 VDC only. See HW-12 for additional discussion. References: Review. 73 Amateur Radio. Jan 1964, p. 74. Review. Popular Electronics, Feb 1964, p. 66. Review. QST. Jan 1964, p. 48. Modifications. QST. Apr 1965, p. 71. Modifications (more on). QST. May 1965, p. 59. Adding bands (reference only). CQ. Jan 1966, p. 70. Power supply for. CQ. Mar 1966, p. 48. Alignment tip. QST. May 1966, p. 74. CW modification. CQ. Feb 1967, p. 36. Dial modification. QST. Jun 1968, p 36. Noise limiter. Ham Radio. Mar 1971, p. 67. CW coverage with. CQ. Jul 1971, p. 18. Extended coverage. QST. Oct 1974, p. 39. A receiver pre-amp for. CQ. Mar 1976, p. 26. VFO slippage and backlash. QST. Sep 1976, p. 39. Use as QRP. QST. Sep 1977, p. 45. Receiver Section Frequency coverage: 7.2 to 7.3 MHz Receiver mode: lower sideband only Sensitivity: 1.0 µV input will provide at least 15 db signal plus noise to noise ratio Selectivity: 2.7 kHz @ 6 db, 6 kHz @ 50 db IF: 2305 kHz Image rejection: 100 db IF rejection: 50 db Receiver audio response: 400 to 3000 Hz Receiver audio power output: 1 watt External speaker impedance: 8Ω Antenna input impedance: 50Ω nominal, unbalanced Transmitter section Frequency coverage: 7.2 to 7.3 MHz Stability: less than 200 Hz per hour after one hour warmup RF power output: 200 watts PEP Unwanted sideband suppression: 45 db minimum below peak output @ 1000 Hz Carrier suppression: 45 db minimum below peak output Output impedance: 50Ω nominal, unbalanced Transmitter audio response: 400 to 3100 Hz Microphone required: hi-Z crystal, ceramic or dynamic; 10 mV minimum output Power requirements: 800 VDC at 250 mA 250 VDC at 100 mA –125 VDC at 5 mA 12 volts AC or DC at 3.75 amps Tubes: (3) 6EA8, (5) 6AU6, (1) 6BE6, (1) 12AT7, (1) 12BY7, (1) 6EB8, (2), 6GE5 Photos, general information and specifications from "Heathkit: A Guide to the Amateur Radio Products," by Chuck Penson, WA7ZZE. Used with permission.