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Microphone Amplifier 91B27 - 91B28 - 91B29

Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008256) Ampl/Mixer
 
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008257) Ampl/Mixer
 
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2009002) Ampl/Mixer
 
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2009003) Ampl/Mixer
 
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2009004) Ampl/Mixer
 
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2009006) Ampl/Mixer
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008134) Ampl/Mixer Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008137) Ampl/Mixer
Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008142) Ampl/Mixer Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008155) Ampl/Mixer
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Microphone Amplifier 91B27 - 91B28 - 91B29; Disa Elektronik A/S; (ID = 2008134) Ampl/Mixer
Disa Elektronik A/S;: Microphone Amplifier 91B27 - 91B28 - 91B29 [Ampl/Mixer] ID = 2008134 809x1200
Select picture or schematic to display from thumbnails on the right and click for download.
For model Microphone Amplifier 91B27 - 91B28 - 91B29, Disa Elektronik A/S; Copenhagen:
Disa 91B28 mic preamplifier (in fact, this unit is labeled 9091B0281 but the service manual is for the shorter type designation and is 100% compatible with this version.
 
Country:  Denmark
Manufacturer / Brand:  Disa Elektronik A/S; Copenhagen
Year: 1964 ?? Category: Audio Amplifier or -mixer
Semiconductors (the count is only for transistors) 7: 2G309 2N1309 2N1309 2N526 2N1168 2N1168 2N1168
Main principle Audio-Amplification
Wave bands - without
Details
Power type and voltage Alternating Current supply (AC) / 110, 220 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Microphone Amplifier 91B27 - 91B28 - 91B29 - Disa Elektronik A/S;
Material Metal case
Shape Rack
Dimensions (WHD) 45 x 113 x 270 mm / 1.8 x 4.4 x 10.6 inch
Notes

Trensistorized microphone amplifier from the DISA 19B series. (91B27 and 91B29 are line level amplifiers with higher input impedance). Transistorized, direct replacement for the TAB V-72 modules. Designed for installation in standard DIN rack in broadcast mixing desks. 

This amp has built-in power supply (110/220V) and can be hot-swapped by the user in case of failure, even when the studio is on-air. 

3 step gain control in front panel (6dB steps)

Literature/Schematics (1) - - Manufacturers Literature (complete sercive manual for Disa 91 series mic/line amplifiers)

Model page created by Matti Adolfsen. See "Data change" for further contributors.



All listed radios etc. from Disa Elektronik A/S; Copenhagen
Here you find 4 models, 2 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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