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RD100 Standby/Power level switch.

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Bill Moore (bill_moore)
Username: bill_moore

Registered: 03-2013
Posted on Monday, April 15, 2013 - 11:27 am:   

I have most of the parts I ordered to rebuild the filter supplies, and should have it ready to test again tonight. I assume someone replaced the standby switch in the past, as it protrudes farther than the power switch, so I ordered a couple of different on-off-on switches while I was gathering parts. Problem is they too have too much thread, and since the front of the chassis is angled, there is not enough room to recess it into the chassis. Can anyone help with a source for a switch with a shorter thread, and/or switch body? I'm tempted to use the ground switch in the standby position, but aren't sure if it will handle the current. (Lots of room for a longer switch in the rear).
Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Tuesday, April 16, 2013 - 09:52 am:   

I don't know where you are but apex jr has a big selection. SOMETHING should fit and they are pretty reasonable there. Mike.

http://www.apexjr.com/Switches.htm
Bill Moore (bill_moore)
Username: bill_moore

Registered: 03-2013
Posted on Tuesday, April 16, 2013 - 10:13 am:   

Thanks, Mike! Was the original switch configured similar to the Carling power switch with a short, narrow body, (like Fender),or was it like the Carling switch used on the rear ground switch?
(I'm in New Mexico)
Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Tuesday, April 16, 2013 - 12:10 pm:   

I don't know on the rd;s. Didn't work on any. Here's what the hd's have though.

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Bill Moore (bill_moore)
Username: bill_moore

Registered: 03-2013
Posted on Tuesday, April 16, 2013 - 12:42 pm:   

Thanks again, Mike, that looks like the ground switch on mine. Evidentally it was close enough to the chassis that MM installed some insulation under the switch, and pilot. It doesn't look like the front panel is tilted back much in the pic either.
Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Tuesday, April 16, 2013 - 03:01 pm:   

Should have blown the sawdust out first before I took the pics! Things sit in MY shop and get pretty dusty and sawdusty from all the other projsect that I do. If you need any other pics, let me know. Mike.
Bill Moore (bill_moore)
Username: bill_moore

Registered: 03-2013
Posted on Wednesday, April 17, 2013 - 02:39 pm:   

Thanks, Mike, I found some information, (specs) on a Carling 4154 switch that seems to closely match the dimensions of my ground switch, which looks just like the one in the pic. Haven't ordered one yet, will try to tonight.
Bill Moore (bill_moore)
Username: bill_moore

Registered: 03-2013
Posted on Tuesday, April 23, 2013 - 10:53 am:   

I installed a Carling 2FC53-73/TABS switch last night, and it looks a lot better. The threaded section is shorter, and clears the chassis. (I couldn't help myself and still put heat shrink on the lower wire). My only complaint is the length of the toggle is longer than the power switch's.
I'll post pics when I have it running again.
On another note, the Sprague filter caps worked great on the low voltage supply, but I ordered F&T for the high voltage thinking I wouldn't have enough room in the can for Spragues. They would have been fine, those silver Mallorys are huge!
Mike Kaus (mm210)
Username: mm210

Registered: 05-2006
Posted on Tuesday, April 23, 2013 - 06:33 pm:   

Those old caps WERE huge. I marvel at the fact that the old mallory's were the size of CANS are now. I've used a lot of Illinois caps that everybody else hates and I have NEVER had one go down (as I knock on wood and spin around counter clockwise three times) and they are a nice size for replacements. Mike.