Why anyone would need to do that is mostly beyond me (anyone actually got a 32 ohm speaker?!), but there's no reason it wouldn't work. just GROUND the negative speaker terminal (you might have to tap into where the black wire from the OPT grounds inside the chassis) and hook the positive speaker terminal to the 16 ohm tap. you COULD use a 32 ohm speaker on the HF89. Now, the way the transformer is wired, the same transformer could work either way. On the HF89, the feedback was taken from the 4 ohm (green) and 16 ohm (orange) taps, through a rather complex network. Standard 120/208/240 Volt AC wiring colouring is shown below: Phase 1 - Black Phase 2 - Red Phase 3 - Blue Neutral - White Ground - Bare wire, green, or green with yellow stripes Such forms of wiring are commonly found within domestic and office environments. Here's the wiring from that one:įrom comparing the HF89 to HF87 schematics, here's the only way I could see that the transformer could be wired in an HF89: Wiring colours in the USA may be categorised as either AC or DC supply. If there's five wires on the secondary side with those colors, I don't think it's an HF-89 transformer.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |