Picked up a pair of Altec speakers about a year ago, finally getting to the rebuild. 803B low frequency, 804A high frequency with 811B horns, N800E 16ohm crossover(same as contained in the official "Capistrano" cabinet). The custom cabinets for my find were very ugly and long gone.
I unpotted the crossovers (a pain in the...). Did some digging to find N800D, N800E, N800F schematics and upgrade schematics. Settled on one that came up in an old post on the Altec Heritage Site, drawn by one Jack Gifford and commented on by the Legendary Zilch. See below.
Caps:
Original N800E caps were 2 each 10.5 mfd contained in box, not sure if they were film/foil/wax/what (anyone know?), but they were vastly out of spec. I will replace LF with 10.5uf and HF with 4uf. Probably go with Dayton Polypropylene Capacitors from Parts express, unless anyone out there can advise otherwise.
Resistors:
Original network surprisingly tested within 2 or 3 percent, with seized up stuck selector switch. I will replace this with the 20 ohm 4 watt wirewound and a Parts Express 16 ohm L-Pad.
Inductors:
Original are 3mh iron core. Since I'm virtually doing a rebuild, would it make sense to replace these with new air core inductors?
Let them know what think, any advice, new perspective, etc always welcome.
Attachment 79412Attachment 79413
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