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March 01, 2021, 05:17:58 AM

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1
BeePre / Re: failed High Voltage Power Test
« Last post by Dynakitbuilder on Today at 04:56:31 AM »
Sorry, but I do not know what the "continuity beep setting" is.  I have a basic Fluke 101 meter.

  Also, the beep means the diode is OK and should be checked in both directions on all diodes?
2
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Deke609 on Yesterday at 05:14:32 PM »
Many thanks.
3
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Paul Birkeland on Yesterday at 04:52:34 PM »
You can rotate a stepper motor slowly with your hand and it shouldn't cause problems.
4
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Deke609 on Yesterday at 04:48:27 PM »
Thanks. I meant the manual override bit. Don't know what that's called.
5
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Paul Birkeland on Yesterday at 04:29:50 PM »
They are stepper motors.
6
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Deke609 on Yesterday at 04:11:02 PM »
@PB and anyone else with a motorized volume control - Is there any labelling that indicates the motor manufacturer?  I'm trying to figure out a diy way of attaching a 15 deg. step motor to a Seiden rotary switch that also allows for manual switching.  No luck yet - it would help if I knew what such a gizmo was called (assuming they exist for retail purchase). Hoping that I'm just not doing the correct search. 

cheers and many thanks, Derek
7
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Paul Birkeland on Yesterday at 02:46:22 PM »
Yeah, that sucker is really deep.  I added a standoff to support the top plate right behind it, but also considered the possibility that I would need to physically attach the attenuator back there if it didn't feel stable. 
8
BeePre / Re: PB BeePre 1 to BeePre 2 output scheme
« Last post by Thermioniclife on Yesterday at 02:04:09 PM »
Thanks PB. I had an underlying sense of misunderstanding as this is a trait that has always followed me throughout life. Just when I think i am right I realize I'm wrong. Love the BP1 sonically and with o-rings and flask weights it is less sensitive but it still has microphony between tracks or when pausing tracks. I feel that the sound waves striking the tube envelope are causing this. I have tried moving the BP to different locations in my living room to try to find a null area in the room to no avail. Using 6a3's greatly improved this matter but they are lacking compared to the 300b Thanks again PB.
Regards,
Lee
9
Kit Assembly Service / Re: Kit Assembly Gallery
« Last post by Thermioniclife on Yesterday at 01:37:46 PM »
Thanks PB, It looks like a quality unit. The only thing that scares me is the un-godly length. I scaled it using your photo as best I could
and I make it at between 5.375-5.5 inches in length. I have an upcoming project that I would like to use one of these.
 I will contact Arek for the details. As always PB Thank you.
Regards,
Lee
10
BeePre / Re: failed High Voltage Power Test
« Last post by Paul Birkeland on Yesterday at 12:32:14 PM »
What I would do next is to disconnect the diodes from power transformer terminal 8 as well, then use the continuity beep setting to test all your diodes to see if any are shorted.  It's super rare to end up with a shorted UF4007, but not impossible.  Also keep in mind that some meters may beep on every diode but only in one direction, so before declaring a diode bad be sure to swap the leads around. 

If you do not find a shorted diode, that's also valuable information and there's certainly another path to take after that with more debugging.

-PB
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