Bottlehead Forum
Bottlehead Kits => Eros Phono => Topic started by: rude52 on January 26, 2014, 01:21:14 PM
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Hello all,
Completed my new Eros today. All boards went in well and no obvious cold joints. When I checked resistance numbers, tabs 1 thru 5 are off.
1 - 47 (supposed to be zero)
2 - 120 (60)
3 - 0 (0)
4 - 120 (60)
5 - 47 (0)
6 thru 30 all good
Pins on the RCAs good
Any thoughts?
Thanks,
Rich
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Got it!!
Should have thought it through. No good ground connection and realized that it was picking up 47 Kohm off of input. Mis-wired T5U to T19 instead of T20. All good - AND found a wire that snapped off to one of the C4S boards. That hookup wire can be a bit brittle.
On to voltages
Rich
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The hookup wire isn't really that brittle. What happens is a lot of wire strippers nick the wire right where they cut the insulation. That creates a stress point and the wire cracks at the nick.
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Thanks Doc,
Yes, I think that you are correct. Seemed to be little nicks whether I used a stripper (gauge wasn't quite right) or knife.
Voltages all fine, LEDs lit, so I plugged it into the system. Sounds great! Too late for an extended session but first thing I noticed was the bass extension. I am using a Denon DL110 cart so the extra gain is nice too. No buzz, hum or anything I and I am in a high RFI environment. Looking forward to a LOOONG session to put it through its paces.
I can't say enough about how clear the instructions are and the build is so intuitive. I cannot imagine how difficult it is to design the circuit, get it optimized AND THEN figure out stepwise how to explain how to build it up for non-mechanicals like me!
Thanks for another great kit. Will think about retiring my modded Foreplay 2 for a BeePre soon.
Rich
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Dan,
What gauge do you suggest. My Ideal stripper, the fancy one, didn't go small enough. I used 24 gauge on an Ideal T-Stripper (45-121) and had two wires break. Is the Teflon coated wire metric?
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The Teflon insulated wire is 22ga.
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On 22 AWG on the cheaper Ideal stripper it peels off some of the insulation. I checked this afternoon before posting since I didn't remember what gauge I stripped the wire with.
What does Bottlehead use for stripping when repairing?
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I use a stripmaster, the guys like those cheapass little plier-like ones that you can adjust with a set screw.
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I like the cheap one myself. After you get used to it, it works like a champ.
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My Stripmaster didn't go to 24 ga. But the lowest also didn't take a thing off of the wire. There are two models and I think I got the one with the smaller die. Maybe not.
I had one of the cheap adjustable ones back in the 70s. I cut more wire than I stripped. I was awful at it. So they are not for everybody.