Blonder Tongue's PS-1526 is a professional quality, DC power supplies designed to power antenna preamplifiers. Both units provide -21 VDC and allow for a combined VHF and UHF feed to be duplexed with the power feed. The PS-1526 has a single output for powering one load, with maximum current rating of 40 mA. The PS-1526 and PS-1536 are housed in an aluminum case with a panel mounted fuse and an auxiliary AC receptacle. Both units offer regulated and surge-protected power. The PS-1536 provides an additional level of short circuit protection on the regulator and a clamped output voltage to protect connected loads.