Designed and assembled in the USA, this new, compact 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 903 has an on-board 3-position polar pattern switch, and will power one AK-47MkII, AR-51, M16, TF39, TF47, or TF51.

7-Pin XLR Pin-out:
1 – B+ (120VDC)
2 – Heater (6VDC)
3 – Polarizing (0/60/120VDC)
4 – Ground
5 – Audio (-)
6 – Audio (+)
7 – Ground