[Boatanchors] S-38 pilot light

[Mike Lichtman]

Bob,
    You might want to check out the S38 web site. It has everything  
you need to know about them. http://www.the-s38-guy.com/  73 Mike KF6KXG
On May 26, 2013, at 5:11 PM, Wilson wrote:

> Hi Bob,
> Why did you move the switch?  I think it should be in the hot side,  
> as soon as it comes into the chassis.
> What you have done is make all the filament circuit hot, since you  
> are breaking the circuit at the last possible point.
>
> What's the reference for the voltage measurements, neutral?
> The filament current is not great, so the drop across the resistor  
> is not great, just 6V or so.
> Try measuring across it.   If you see no voltage, then there's no  
> current and something is not connected properly, or the light is  
> burned out.
>
> -----Original Message----- From: Moulton, Robert M - (rmoulton)
> Sent: Sunday, May 26, 2013 7:39 PM
> To: boatanchor ‎[boatanchors at puck.nether.net]‎
> Subject: [Boatanchors] S-38 pilot light
>
> Hello all
>
> Been a while since I've posted a question here, but I've been  
> following the various projects.
>
> I am working on an S-38C Run 2. I have recapped it, installed a  
> polarized power cord, and have moved the switch to the neutral leg.
>
> The problem I am having is w/ the pilot light. It is attached to the  
> filament of the 35Z5 rectifier on one side and to line power thru a  
> 15 ohm resistor on the other. It is a #47, 6.3 V bulb. Trouble is I  
> get 120V at both the #3 pin of the 35Z5 and at the opposite end of  
> the 15 ohm resistor. I understand that this design is a partial  
> shunt from the heater of the rectifier tube and have not worked w/  
> one of these yet.
>
> Any thoughts or ideas?
>
> Thanks
>
> Bob
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