Ultra high performance headphone amplifier QRV09

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No, there is no power switch. I don't think that power switch is necessary since the unit takes negligible current (compared to other home appliances). The heat generated from the unit is very small to none, I used long lifetime high temp. capacitors just to make sure the unit can be plugget in all the time. There are fuses at the back of RF/EMI power plug, one LED and a POT.
 
Nice job indeed and the wire looks better than average I'd must say. Very good.
Thanks. I used basic shielded wire we use for cameras security and low voltage devices at work. The cable is good quality copper used for long runs but nothing speacial really. The shield is just metalized foil not even braid. I don't think the shielded wire is required for this project. I tried it without a shield and it worked just fine (since the inside connections are short anyway.)
 
Do you know if the amp 'pops' when powering on and/or off? (ie - if we decided to put a power switch before the trafo?)
I just tryed that. No. There in no "pop" in headphones as we know when turning the amp. on and off. However, there is very slight audible burst when unit shuts off as discharging capacitors losing the voltage. I tryed it with 300 ohm Sennheiser headphones, so, no problem there. I don't know what the result would be when hooked up into lower impedance headphones (like 16 ohm lets say (caps discharge faster)). Would I personally put the swith there if I had to? Yes. P-A might give us some technical answer on this.
 
peranders,

Can you please clarify something for me? The wiki page lists the following prices:

AD8610 = 100 SEK (you'll need two of them)
Wago terminal kit = 43 SEK
RIFA PPS cap 100 nF = 18 SEK (you'll need two of them)

When you say "(you'll need two of them)", is the price for the pair or for a single unit and we need to buy two?

And for the wago terminal, does the 43SEK cover buy us both the 4pin and the 2x2pin blocks?

Cheers,
Dave.
 
If you look at the top of the article, you'll see that it says,

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That usually means that a newbie has editted the page (ie - their account is still under moderation), which means that a mod needs to approve or reject their changes.

Until that happens, the page will be locked for edits.

Cheers,
Dave.
 
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