[Boatanchors] Hammarlund Super Pro 150 question

[Joe Connor]

 The IRC Volume Control Replacement Manual has this for the sensitivity control on the SP-110: "Obtain from original mfr.", with no resistance provided. The Hammarlund part no. is 3891. 
                    Joe Connor



    On Monday, April 12, 2021, 11:36:52 PM EDT, Al Klase <ark at ar88.net> wrote:  
 
 Wally,

FWIW, the sensitivity control in the SP-200 is 50K per the manual.

Al

On 4/12/2021 7:06 PM, Wally Gibbons wrote:
>  Greetings,
> I'm overhauling a SP150 I got a few years ago. The sensitivity control is
> bad. The resistor element is missing pieces. Therefore I can't measure the
> end to end resistance of the original for a correct value.
>
> The schematic of the SP150 is apparently identical to the SP110 minus the
> crystal filter. But the sensitivity control resistance is not called out in
> the service data.
>
> Does anyone know the value for the sensitivity control?
>
> Thanks..
>
> Wally Gibbons, AF7FH
> North Logan, Utah
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-- 
Al Klase - N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net

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