Price reduced For sale a brand new unused ameritron EBS-1H electronic bias board which is compatible with any tube amplifier to reduce heat by reducing the idle plate current during periods of no rf drive from the exciter. In other words the idling current of the amp is reduced to zero between syllables when on voice  and between dots and dashes when on cw mode. Current price from MFJ is $157 USD but will sell for $120 cdn plus shipping. Please contact me if you need more info. I had puchased it for a project that never happened.