$459.00
Designed and assembled in the USA, this new, compact M903S dual power supply design provides safe and reliable power in a small footprint. The circuit features premium quality capacitors, improved regulation, and RF suppression. The M 903S has two on-board 3-position polar pattern switches, and will power two TF39, TF47, TF51, AK-47 MkII, AR-51, or M16 tube microphones.
7-Pin XLR Pin-out:
1 – B+ (120VDC)
2 – Heater (6VDC)
3 – Polarizing (0/60/120VDC)
4 – Ground
5 – Audio (-)
6 – Audio (+)
7 – Ground
These units are hand-built in South Windsor, CT, USA with premium components including a Triad transformer, Nichicon capacitors, Neutrik connectors, and a PCB layout made to maximize current handling. They are built well over-spec to ensure reliability and safe operation for decades. They are burned in as a full unit to ensure optimum performance and operation.
