User's Manual

Theodore A. Rapp, Associates ©
Type Omni-directional electret
Color Black, Gray, Tan or White
Frequency Response 40-16,000 Hz
Noise Level 26dB SPL Nominal
TR-50 TR-50PS TR-79
Size 18 X 300 X .55 Same .750 dia x 4”
Nominal Impedance 3000 250 250
Maximum SPL -134dB -134dB
1
Output Level -57dB -53dB
Current Drain (Micro A) 20-30 80-100 80-100
Battery 357 (SR44W313) 357 (SR44W313)
Voltage 1.5v 1.5v 1.5v
Phantom Power 12/48v
2
1
With phantom power: Up to -150db
2
When using phantom power: (Positive Bias TR-79 only) REMOVE INTERNAL
BATTERY.
IMPORTANT FOR USERS OF PHANTOM POWER
(Positive Bias TR-79 ONLY)
Remove the internal battery when using phantom power.
The TR-50 is available with a variety of connectors (Micro-Mini, 4,6 or 8 pin Lemo,
Mini Switchcraft, Sony, Sennheiser etc.) for direct attachment to any wireless
microphone transmitter. The TR-79 power supply provides a balanced transformer
output to an XLR connector and uses an Eveready 357 battery. The battery
compartment is designed to permit only one insertion direction, so the polarity
cannot be reversed. This compartment is accessible by turning the black plastic end
cap counter clockwise and pulling firmly. The battery is removed by pushng it out
with a sharp object through the hole provided in the bottom of the compartment.
The battery should be removed when the microphone is not used for
extended periods of time.