I'm building a SS power amp. I have a couple construction questions.
1. Is it acceptable to use inline fuse holders on the power transformer secondary's? (attached)
2. The case I bought was for a preamp or headphone amp. It had some pre-drilled holes on the back, an IEC hole, an on / off toggle switch hole, two RCA holes I'm assuming for inputs. Since it's for me, is it tacky to use the RCA's for speaker outputs? Should I just drill some binding post holes? (attached)
3. On the front is a hole for a 1/4" jack and a hole for a volume pot. I could use the 1/4" jack for input if I use the RCA's for speaker out. Or should I just bite the bullet and drill binding post holes? (attached)
1. Is it acceptable to use inline fuse holders on the power transformer secondary's? (attached)
2. The case I bought was for a preamp or headphone amp. It had some pre-drilled holes on the back, an IEC hole, an on / off toggle switch hole, two RCA holes I'm assuming for inputs. Since it's for me, is it tacky to use the RCA's for speaker outputs? Should I just drill some binding post holes? (attached)
3. On the front is a hole for a 1/4" jack and a hole for a volume pot. I could use the 1/4" jack for input if I use the RCA's for speaker out. Or should I just bite the bullet and drill binding post holes? (attached)
Attachments
I don't like speakers on RCA because some helpful idiot (could be you after a wild party) can put WATTS into line-level interfaces and blow stuff up. However a billion low-price "HiFis" do it.
In-line fuseholder works, but is "tacky". Real wiremen working inside the box use real fuseholders.
Littelfuse Fuse Block @ The Electronic Goldmine
In-line fuseholder works, but is "tacky". Real wiremen working inside the box use real fuseholders.
Littelfuse Fuse Block @ The Electronic Goldmine
Attachments
It is proper to put a single fuse on the transformer primary side, between the mains socket and the on/off switch. This is for health and safety. You can get IEC sockets with built-in fuses if space is limited although you'll have to enlarge the cut-out.
A fuse/fuses on the secondary could be used too. What's your motive? I would advise thinking through what would happen if only one fuse blows...what happens to the voltages in your circuit and will this damage your circuit or your speakers?
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.