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The Universal Filament Regulator is Made in Canada
Channel Separation 113 dB 1 kHz
This eliminates clicks and pops on start-up
The HPA-1 delivers true world class performance at a very attractive price
It can be used as a passive preamp by adding a volume control
21st Century Maida Regulator Power Amplifier The Universal Filament Regulator isThe 21st Century Maida Regulator Rev. 3. 0 is a fully assembled module intended for B+ regulation in a vacuum tube amplifier. Since its release in 2012, the 21st Century Maida Regulator has become widely adopted by DIY tube amplifier enthusiasts and original equipment manufacturers who appreciate its ultra low noise floor and extremely high ripple rejection. This third major revision of the circuit takes the performance to a whole new level. Technical