. QST . Pri. Sec. Ohms Ohms 3600 90 3600 60 3600 40 400 50 400 50 600 30 620 350 1000 20 200 100 500 50 GOO 600 10 120 25 100 60 50 .1 150 660 120 20 •20 20 20 .3 20 .9 20 25 11 .3 11 50 20 1 3 .11 50 A quality crystal .Microphone forIA systems, house reiurdirs. response 30 10 Output level —52 db. Iro-rldes ample output for use withlow gain amplifiers. Complete with5 ft. of shielded cable. Shpg ,4 —In lots of 3 singly, each gini 4 25 LAPEL /i MICROPHONE MftULAS —II IIVIIItOIAl ftlNItAlPUIPOII MIKII Specially engineered cry
. QST . Pri. Sec. Ohms Ohms 3600 90 3600 60 3600 40 400 50 400 50 600 30 620 350 1000 20 200 100 500 50 GOO 600 10 120 25 100 60 50 .1 150 660 120 20 •20 20 20 .3 20 .9 20 25 11 .3 11 50 20 1 3 .11 50 A quality crystal .Microphone forIA systems, house reiurdirs. response 30 10 Output level —52 db. Iro-rldes ample output for use withlow gain amplifiers. Complete with5 ft. of shielded cable. Shpg ,4 —In lots of 3 singly, each gini 4 25 LAPEL /i MICROPHONE MftULAS —II IIVIIItOIAl ftlNItAlPUIPOII MIKII Specially engineered crystal Micro-phone Attaches to lapel. OnlyPh In diameter. Exceptionalfrequency response. Output level— 55 db. chrome plated case andclip for attaching to lapel. In-cludes 5 ft. of shielded wt. 1
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
