Behringer T-1 free download

File name T-1.pdf

BEHRINGER T-1 Tube Condenser Mic +11,6V Simple view (two PCBs combined) Besides -20db switch there is also Low Cut switch located on external power supply unit. B+ +192V R3 82k LED1 (valve socket backlight) 5 C3* 6 R11 3,3k C5 22uF 16V GND +9,8V R6 5,1k C4 +171,5V 1uF 350V 7 1 6 R1 1k GND +7V D C3 Black Electret Capsule d=9,7mm (no internal FET) 3 R4* 120k R5* 30k C2* 22uF 25V C1 10uF 16V White 470p R5 510M R10 5,1k Q1 G S FET/ N 2 330n +19,3V V1 12AX7 J202 +2,8V C2 1n R8 10k R9 2k R7 470k 3 2 +1,8V 4 3 4 9 5 8 R2 220R R4 100k "BILLION" Transformer J60-39553-02364 1 C4* R1* 3,3k SW1 R2* 56k C1* 2,2uF 50V 1 +63,9V 8 1uF 350V T1 7-pin CONNECTOR (to external power supply unit) +2,3V +192V C5* -20dB pad +11,6V R6* 33k 7 2 +11,6V GND SIG + SIG - 6 5 4 7 3 2 1 R3* 16,8k 220p J2 GND CHASSIS GND primary Rdc=2,2k secondary Rdc=59 Ohm 12AX7 J202 top view G7 6 4 (ECC83) Fc A' 9 1 2 3 pins 1-8 of header J1 (not shown on this schematic) K 8 D S G G' K' ATTENTION! There are duplicated component annotations on two PCBs of the microphone. A F 5 Drawn by Paul Stone @ 2017 This schematic is NOT original Behringer source. F