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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 7:12 pm 
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Page 14 of this manual is what I was looking at


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 7:26 pm 
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That's the wiring diagram---intended to help find things in the chassis. You should be able to find all the branches using either this or the schematic. What counts is that the actual hardware matches the schematic

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 7:34 pm 
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I find this to be better but was the ones I posted correct?


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 7:58 pm 
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spsquires wrote:
I see
pin1 tube 80
det coil
brn / wht 14300 ohm resistor from pin 3 tube 235 IF
red wire from cap block 4517 pin 2
red wire from pin 3 speaker plug

This list is MAYBE correct----the problem is that most of the descriptions are ambiguous. Assuming that "pin 3 of the the 235" is the screen grid, then the description is correct, but also potentially confusing. Better to say "the 14.3 K resistor that supplies B+ to several tube screens"

This gets back to the definition of a node: "pin 3 of the 235" is not a node---it is PART of a node....

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 9:42 pm 
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Does the brown wire 8 mfd from by pass condenser go to pin 5 of speaker plug and if so would that be positive side and does negative go to chassis ground?


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 10:06 pm 
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spsquires wrote:
Does the brown wire 8 mfd from by pass condenser go to pin 5 of speaker plug and if so would that be positive side and does negative go to chassis ground?


On several occasions, I have tried to explain that we normally cannot answer questions like this. For starters, I don't know what is the "brown wire" or "pin 5 of the speaker plug".

Start be looking at the schematic that I marked up (highlighted the B+ node). Clearly, the 8uF capacitor goes from this node to chassis ground. You know that the rectifier cathode is always the most positive node, so that gives you the polarity.

For the other connections you mentioned, follow the wires---we can't see what you are looking at.


Did you read my post about Kirchhoff and how to read schematics?

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 10:35 pm 
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I posted the link to the schematic page 14 like you guys always ask for . So what is wrong with my question?


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 10:44 pm 
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Quote:
So what is wrong with my question?

I thought I explained that......statements like "pin 3" or "the brown wire" are ambiguous.

I have been using the schematic you linked---no problem there.

The real question is whether you understood my answer above---do you know know how the 8uF cap connects?

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 11:07 pm 
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I had it connected to this point to ground and what I believe to be the connections for the other 8 mfd cap we discussed earlier and fired up the radio and when it got to 90acv on variac it put smoke out of this cap in question. I was thinking that those two caps connected together but only a guess.


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 11:23 pm 
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Don't guess!!---what does the schematic say?

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"Even if you don't understand Ohm's Law, you are still required to obey it."


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Tue 07, 2020 11:31 pm 
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Don't guess what?


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 12:04 am 
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You're losing me here---I responded to what you said here:
Quote:
I was thinking that those two caps connected together but only a guess.


I'll get back to this sometime tomorrow.......

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"Even if you don't understand Ohm's Law, you are still required to obey it."


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 12:13 am 
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This is quite simple I posted the page and link of the schematic I was using and asked a question describing component and wire color of wire from that component to where I thought it connected and asked if it is was correct and if negative side went to chassis ground. I connected it that way a smoke came from it.


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 12:28 am 
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spsquires wrote:
I posted the link to the schematic page 14 like you guys always ask for . So what is wrong with my question?

Here is what’s confusing. Page 14 has many brown wires. The speaker socket is not identified with PIN numbers, so saying “pin 5” has no meaning. Page 14 is not a schematic, it is a wiring diagram. The schematic is on page 3. Helps to be clear which you are looking at.

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 12:36 am 
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I posted the end of page 10 that I was looking at schematic of wiring. Also there is only one bypass cap block and only one brown wire from it. How much easier is it then that? Also I just assume the pinout on a speaker plug was like a 5 pin tube.


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 12:53 am 
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Sometimes the negative of a electrolytic cap doesnt go to chassis but is still negative. Hmmm brown wires

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 1:00 am 
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So in this case would positive go to b plus and negative of cap in question to speaker plug pin I mentioned?


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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 1:08 am 
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In a conventional transformer set, the most positive point is the rectifier cathode.

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 1:10 am 
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Is there a schematic for this thing ?

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 Post subject: Re: Westinghouse model 801 grandfather clock radio.
PostPosted: Apr Wed 08, 2020 1:15 am 
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The link is at the top of this page.


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