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EAR 834 diodes and community reviews

Hello community ! Hello Stephe !

I'm about to finish EAR834 clone, but hesistant about the diodes on the power board. Are D1, D2, D3 and D4 the same value/reference all 4 ? I bough 1KV 1A for them : x4 1N5623GP.

Can you recommend a site where I can find all the coupling capacitors, like mundorff ? and some precision resistors (68k 3w and 2M which I forgot on Mouser....)

Here are some photos of the assembly to get your opinions 👨‍👨‍👧‍👦

Some solder flux stains visible in the photos, I will clean with a special cleaner when all the components are installed... Can you explain to me some tests to carry out before powering up, with a multimeter please? I saw Stephe's video of course, who tests the power supply board fully assembled, but separated from the RIAA board. How should I carry out my tests in my case?

anti-involuntary movement switch ! you have to pull upwards then be able to activate the switch ;)

Better too much than not enough lol

short circuit? I hope not ! lol

I'm hesitant to use gold plated connectors to get a quick connect/disconnect of the RCA wires on the board... in case of a fault to diagnose or tweak components...

9 comments

9 Comments

Oakmountainman

Sep 12

Tim, thanks for posting the closeup pictures! Nice lead bends and solder joints!

Skunkie

May 26

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Yeah, D1-D4 are all the same. I've been buying my caps from https://www.madisoundspeakerstore.com/mundorf-mcap-evo-oil-caps/ And don't you hate it when you miss 1 or 2 parts on a mouser order? I also do this fairly regularly lol.

Tim Dat

May 28

Replying to

sorry, i think it's "wirewound cement resistor"

Skunkie

May 28

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Replying to

I don't see why that wouldn't work.

Tim Dat

May 28

Replying to

what questions me is the impact of this material on sound reproduction. This is valid for capacitors, there are capacitor technologies which are more faithful in audio than others, for multiple reasons that I cannot list lol but i know its true ahah. I wonder if it couldn't be the same thing for the resistors after all. and I have the impression that these resistors are not often used on the audio signal path but rather on the power supply side. But maybe I'm wrong.