TUBE MICROPHONE POWER SUPPLIES
KM53, KM54, KM56, KM56C, KM64, U47-EF14, U48-EF86, U67, CMV3, CMV563, M50, M221B, M250B, M582, C12A, C61, Sounddeluxe E49, ELAM250E, ELAM251E
The TMPS1 is a single channel power supply that provides filament and plate voltage via a 5 pin gold XLR connector. Each power supply is built custom, wired pin-pin to the original mic.
M49, M49C, M269, UM57, C12A, C12B
The TMPS1X provides filament, plate, and pattern selecting voltage for tube microphones that require remote pattern selection. The TMPS1X has the same electrical characteristics as the TMPS1. The cardiod position has an internal fine adjustment for accurate cancellation of the rear side of the capsule.
KM53, KM54, KM56, KM56C, KM64, CMV563, M50, M221B, M250B, M582, C12A, C61, Sounddeluxe E49, ELAM250E, ELAM251E
The TMPS2 is a dual channel power supply that provides filament and plate voltage via two 5 pin gold XLR connectors. Works with most small diaphragm condensers, same as the TMPS1 but 2 channels.
TMPS1-U47 / U48-VF14
The TMPS1-U47 is a single-channel-supply specifically designed for a U47 using a VF14. The plate voltage is adjustable from 90 to 110vdc @ 50mA of DC current. Because the amplifier and filament in the U47 are powered from the same voltage, regulation is even more critical. A typical tube mic draws approximately 1mA from the plate supply (i.e. +105 in this case). In contrast, a U47 draws about 40mA. In an unregulated supply, noise is a function of current, the more current, the more noise. Therefore, a passive circuit will inherently be much noisier for the U47/U48, which is why these mics have a low pass filter built inside them, filtering the b+ before it powers the audio circuit. In a traditional supply, there is approximately 1-2vac of ripple on the +105vdc, in our supply it is less then 0.002vac.
SM2, SM23, C24
The TMPS2X is a dual channel power supply with dual pattern selection.
The TMPS-C12 is a single channel power supply similar to the standard TMPS1X except that it also provides the –1vdc grid bias. The bias voltage is adjustable from 0 to -2vdc. Our supply uses a negative regulator, then significant passive filtering to provide a rock solid/clean bias voltage. The supply connects to the mic via a 7 pin gold XLR, with a 9 position pattern selector built in, as opposed to a separate pattern selector box, simplifying the setup.