Heathkit HDP 21A Manual
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Extracted text from Heathkit HDP 21A Manual (Ocr-read)
Page 1
instm etion:
FOR THE
-I-IE.A.THKIT
HEATHKIT
MICROPHONE
Model HDP-2IA
INTRODUCTION
The HEATHKIT Model HDP-ZIA Microphone is Its frequency response is eSpecially recom-
attractively styled and well constructed. mended for voice communications with Heathkit
SSB Amateur Radio equipment.
FEATURES
Optimum. Frequency ReSponse..... Choice Of
Switching Configurations.....Locking Button On
Press-To-Talk Lever.....Strong Chrome Plated
Die-Cast Zinc.
SPECIFICATIONS
Typeoooooooooooooooooooooooooooooo Dynamic,highimpedance.
FrequencyResponse. . . . . . .. . . . . . . . . . . . 70 Hz to 10 kHz.
Output. 57dbbelowlvoltpermicrobar.
LoadImpedance...................... IOOKQ, minimum.
Maximum Switch Current. . . . . . . . . . . . . 1 ampere.
Maximum Switch Voltage. . . . . .. . . . . . . . . . 125 volts AC or DC.
Material.........,,................ Die-castzincandplastic.
Finish.oooooooocooooooooooooooooo- satin Chromeandgray.
Dimensions. . . . . . . . . . . . . . . . . . . . . . . . 10" high x 5-1/8" base diameter.
Netweightooooooooooooooococo-00.00: 1-3/41bS.
597-358 PRINTED IN u.s. A. . 7-25-69