2 Wire Apt Power Supply--Alpha. Use With Ht3009a Ser. Handsets And Dz209 Series Diode Boards Requires T1240 Transformer
2 WIRE APT POWER SUPPLY--ALPHA. USE WITH HT3009A SER. HANDSETS AND DZ209 SERIES DIODE BOARDS REQUIRES T1240 TRANSFORMER.
2 WIRE APT POWER SUPPLY--ALPHA. USE WITH HT3009A SER. HANDSETS AND DZ209 SERIES DIODE BOARDS REQUIRES T1240 TRANSFORMER.