Bottlehead Forum

Bottlehead Kits => Legacy Kit Products => Stereomour => Topic started by: ptlud on February 13, 2015, 08:29:12 AM

Title: Selector Switch Replacement
Post by: ptlud on February 13, 2015, 08:29:12 AM

My Stereomour selector switch has developed an anoying pop.  I am looking for recommendations for a good replacement/upgrade.  Does the switch need to be shorting or non-shorting?

By the way, the amp sounds great with 45 tubes.

Your assistance would be greatly appreciated.

Thanks,

Paul

Title: Re: Selector Switch Replacement
Post by: Natural Sound on February 13, 2015, 10:07:26 AM

Hi Paul, I used a Goldpoint 4P-3T-1D in my Foreplay III. The input scheme is similar to the Stereomour. They aren't cheap at $72 but work well last a long time.
http://www.goldpt.com/selector.html (http://www.goldpt.com/selector.html)

Title: Re: Selector Switch Replacement
Post by: ptlud on February 13, 2015, 10:12:21 AM

Thanks for the suggestion.  Is the switch shorting or non-shorting?

Title: Re: Selector Switch Replacement
Post by: galyons on February 13, 2015, 10:15:52 AM

There are several good high end switches.  Elna, Goldpoint, & Grayhill have all been used extensively in quality audio. I have Grayhill's in all of my BH kit that switches.  Just be sure to get a switch that maintains the switching of both the signal and the ground. That is the superior topology and the way that the Stereomour is wired with the stock switch.

Cheers,
Geary

Title: Re: Selector Switch Replacement
Post by: Natural Sound on February 13, 2015, 10:24:06 AM

Quote from: ptlud on February 13, 2015, 10:12:21 AM

Thanks for the suggestion.  Is the switch shorting or non-shorting?

I'm not 100% sure but I think its shorting.

Title: Re: Selector Switch Replacement
Post by: Natural Sound on February 13, 2015, 11:33:42 AM

Quote from: galyons on February 13, 2015, 10:15:52 AM

There are several good high end switches.  Elna, Goldpoint, & Grayhill have all been used extensively in quality audio. I have Grayhill's in all of my BH kit that switches.  Just be sure to get a switch that maintains the switching of both the signal and the ground. That is the superior topology and the way that the Stereomour is wired with the stock switch.

Cheers,
Geary

Do you remember what Grayhill models you used?

Title: Re: Selector Switch Replacement
Post by: galyons on February 13, 2015, 11:52:22 AM

It is:
GRAYHILL 44HS30-01-4-03N MIL SPEC
 
Number of Positions: 3   
Number of Decks: 1       
Number of Poles per Deck: 4   
Current Rating:      1 A   
Voltage Rating:      115 VAC, 28 VDC
Index Angle:          30 deg       
Contact Style:        Non-Shorting       
Termination Style: Solder Lug 
Mounting Type:     Panel         
Contact Plating:     Silver         
Actuator:      Flat   

http://www.mouser.com/ProductDetail/Grayhill/44HS30-01-4-03N/?qs=ls7QRyWmRk4H00XMNGdLbA== (http://www.mouser.com/ProductDetail/Grayhill/44HS30-01-4-03N/?qs=ls7QRyWmRk4H00XMNGdLbA==)

Cheers,
Geary