Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: Jim R. on April 26, 2010, 09:01:14 AM

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 26, 2010, 09:01:14 AM

Doc,

In the section pasted below, wouldn't it be more consistent and a little les potentially confusing to call the "center terminal" T3 instead?:

Nine pin socket A wiring
You will now install the two LEDs that set the bias voltage of the input tube. These
LEDs have a
silver band at one end of the red body. It is absolutely critical that they are installed
with this silver
band connected to the proper terminal.
( ) Attach the silver band end lead of one LED to the center terminal of the nine
pin socket A. Don

Title: Re: Crack Manual - terminal designations
Post by: Doc B. on April 26, 2010, 09:40:24 AM

"Center terminal" means the center terminal right in the middle of the nine pin socket, not T3.

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 26, 2010, 10:09:39 AM

Ok, just looked at the socket -- never saw a 9-pin socket like that.  What is this connected to as I don't see any other connections listed in the manual for this point?

Just trying to understand what is probably very obvious to everybody else.

-- Jim

Title: Re: Crack Manual - terminal designations
Post by: Paul Birkeland on April 26, 2010, 10:16:52 AM

The center pin of the socket isn't connected to anything internal to the tube, but in the manual you will eventually run a wire from that terminal to terminal 3 (ground).

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 26, 2010, 10:28:22 AM

Ok, but that sort of brings us back to where I started :D.

I just didn't see the words "center terminal anywhere else in the manual except with regard to the RCAs and in the checkout section.

Thanks for the clarification,

Jim

Title: Re: Re: Crack Manual - terminal designations
Post by: Grainger49 on April 26, 2010, 01:57:40 PM

That may be something that is only clear if you can see the picture.

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 26, 2010, 07:16:46 PM

Grainger,

I was doing my usual exercise of converting the pdf to a text file so I could prune it down to the necessary steps, eliminate all the blank space taken by photos and drawings, incorporate notes to myself, and fix the errata, when I came on the step about adding the wire from the center terminal of the tube socket to terminal strip lug 3, so I found it and now everything is crystal clear.

Hopefully I can make some good progress on this tomorrow.

-- Jim

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 30, 2010, 09:30:03 AM

Ok, think I've got it all sorted out, the corrections made, etc.

Now, can one of the BH folks tell me what gauge the supplied wire is?

Thanks,

Jim

Title: Re: Crack Manual - terminal designations
Post by: Doc B. on April 30, 2010, 10:24:02 AM

22 gauge, solid core.

Title: Re: Crack Manual - terminal designations
Post by: Jim R. on April 30, 2010, 01:42:29 PM

Thank you, doc.

-- Jim