Hi fellow amp dudes,
I've got two amps to be recapped, a HD130 2x10 and 65 2x12. I'm not an electrician by a long shot and rely on forums like this for knowing what to get and where to get it so I can hand things off to the tech with instructions in hand (biasing, etc). The manuals on this site are a great find. But it takes some digging to find a full cap replacement list (i.e. every capacitor that should or can be replaced). Maybe it makes sense to make this post/thread a reference for all those like me who visit the forum in the future?
I’m a relative newb here, though I’ve posted a few things and will no doubt keep adding in the future. I’d greatly appreciate it if someone could verify my research before I purchase, and add anything I might need.
Ordering myself I can insure the highest quality possible, also I don’t want to cut corners, i.e. do it once, do it right.
Here’s what I’ve got so far:
HD 130 2x10 (chassis 2275)
Alternatively, I found this recommendation, also for a HD 130:
5 x 150uF@50V
2 x 100uF@450V
2x 150KuF@2W (bleeder resistors)
2 x 20uF@450V
As you can see, the lists are a bit different. Specifically the ‘bleeder resistors’ are rated at 2W. I have no idea what any of that stuff means, but could someone make a (more or less) definitive list for other HD130 owners who visit the site in the future and simply want a list of every cap to replace? Even better if it’s like the list below for the 65 2x12 which shows where each cap is installed. Obviously the tech would know this, but it’s hard for guys like me to get an idea of what we’re doing without the basic information. Also, please chime in if the list below is correct. I could only find one posting of same so don't have anything to compare it to.
65 Watt 2x12 (chassis 2475)
Bias board: 2x150uF@50
Driver board: 1x150uF@50
Main board: 2x150uF@50
Filter board: 2x20uF@450, 2x100uF@450
I’ve read that Mouser in Canada should have all parts, and from what I can see that seems to be the case though I haven’t been able to verify each one yet. The below parts are from other members who listed the part numbers.
150mF@50: Part # 75-TVA1311-E3
100uF@450V: Part# 75-TVA1718-E3
22uF@450V: Part# 647-TVX2W220MCD (This is 22uF instead of 20uF but supposed to be ok anyway)