Hello
I'm on my very first hifi project so I know nothing about anything. I'm trying to educate myself as I move along though.
I bought a pre-soldered HA-PRO2 v4 but when it arrived the potentiometer was broken. It looked like it had gotten a rough trip in the mail and was heavily skewed, with some bits coming out of the rear hole.
I bought a new one from a local supplier here in Norway that looks just like it, and also ordered one from Mouser. The one from mouser was an Alps RK271 and I bought the 100k version as I thought it was listed as total resistance adding the two channels together. My bad.
My question is - can I still use it? From what I read they both do the same job but the 100k one takes less load to run.
Also - the transformator i bought is listed as 220v/50hz 12-0-12, but when I measure it I get about 14v. Can this be as Norway have 230v/50hz, or just because there was no load on it when I measured it? I see that it's stated in a thread here that running anything over 12v will ruin the board.
I'm on my very first hifi project so I know nothing about anything. I'm trying to educate myself as I move along though.
I bought a pre-soldered HA-PRO2 v4 but when it arrived the potentiometer was broken. It looked like it had gotten a rough trip in the mail and was heavily skewed, with some bits coming out of the rear hole.
I bought a new one from a local supplier here in Norway that looks just like it, and also ordered one from Mouser. The one from mouser was an Alps RK271 and I bought the 100k version as I thought it was listed as total resistance adding the two channels together. My bad.
My question is - can I still use it? From what I read they both do the same job but the 100k one takes less load to run.
Also - the transformator i bought is listed as 220v/50hz 12-0-12, but when I measure it I get about 14v. Can this be as Norway have 230v/50hz, or just because there was no load on it when I measured it? I see that it's stated in a thread here that running anything over 12v will ruin the board.
A potentiometer's resistance value always is stated per channel. A good primer on potentiometers or attentenuators: Detailed Information (don't get too serious about stepped attenuators, a decent potentiometer fits your needs).
You are measuring your transformer without load, that always gives you higher readings. 14V without load is just fine.
You are measuring your transformer without load, that always gives you higher readings. 14V without load is just fine.
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