Sowter 9995e high bandwidth transformer for tube microphones (used)
Description
This transformer is in working order, though used. It was about $200 new.
APPLICATION For use with tube amplified condenser microphones. Tubes for this purpose (e.g. EC92, EF86, VF14 etc) have to be low power and tend to have a relatively high internal impedance typically in the range 10 to 20 k Ohms. This transformer has been optimised for this application in terms of bandwidth and phase shift. Also suitable for FET based amplifiers.
FEATURES Mumetal (76%Nickel) laminated core for minimal harmonic distortion and high dynamic range. Multiple interleaved windings ensuring exceptionally good bandwidth even when driven from a relatively high impedance valve.. The high bandwidth and very low phase shift ensures excellent transient response. Mumetal can for magnetic shielding. Available with 2 x M3 threaded mounting holes or threaded grommet for a small extra charge. A center tap is provided on the secondary for phantom powering.
5:1 ratio
Primary inductance 750H
THD 0.05%
f Response 5Hz-80kHz
16.5k : 660 Ohms