. QST . y Ss. i: ,- 1A-111 I i ^ ■ ? <- ir ..SJ. c^Tsr-^ — IHA-113 f j^ -N t - ~a-:-. ~ - iA-\i 1 i ^ ■n ■i L \—. LL 1 1 : _j 1 HA-100X Shielded Input Multiple line to 60,000 ohm grid ... tri-alloy shielding for low hum pickup. HA-10S Plate to Two Grids 15,000 ohms to 135,000 Ohms in two sec-tions ... +12 db. level. HA-113 Plate to Line 15,000 Ohms to multiple line .., +12 dl>. 0 DC In primary. HA-133 Plate (DC) to Line 15,000 ohms to multiple line . . +15 db. level ... 8 Ma. DC in Itnilh 2H* Width llJ/16- Helfht 3V«- Unil Wtliht ; Ibi ULTRA COMPACT series UTC Ultra Com
. QST . y Ss. i: ,- 1A-111 I i ^ ■ ? <- ir ..SJ. c^Tsr-^ — IHA-113 f j^ -N t - ~a-:-. ~ - iA-\i 1 i ^ ■n ■i L \—. LL 1 1 : _j 1 HA-100X Shielded Input Multiple line to 60,000 ohm grid ... tri-alloy shielding for low hum pickup. HA-10S Plate to Two Grids 15,000 ohms to 135,000 Ohms in two sec-tions ... +12 db. level. HA-113 Plate to Line 15,000 Ohms to multiple line .., +12 dl>. 0 DC In primary. HA-133 Plate (DC) to Line 15,000 ohms to multiple line . . +15 db. level ... 8 Ma. DC in Itnilh 2H* Width llJ/16- Helfht 3V«- Unil Wtliht ; Ibi ULTRA COMPACT series UTC Ultra Compact audio units are smalland light In weight, ideally suited to re-mote amplifier and similar compactequipment. The frequency response Iswithin 2 db. from 30 to 20,000 balanced coll structure plus highconductivity die cast case provides goodinductive shielding. Maximum operatinglevel is +7db. Top and bottom mountingas well as circular terminal layout areused in this series as well as the onesdescribed above. AHO ^s^ N , A-18 » » y ~s A-20 ^V 1 1 1 1 A-10 Line to Grid Multiple line to 50,000 ohm grid. A-18 Plate to Two Grids 15,000 ohms to 80,000 ohms, primary andsecondary both split. A-20 Mixing Transformer Multiple line to multiple line for mixingmikes, lines, etc. A-26 Plates to Line 30,000 ohms plate to plate, to multipleline.
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Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
