2 LDR Channel Switching

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Jackie Treehorn
Posts: 236
Joined: Thu Jan 20, 2005 4:54 pm
Location: New Orleans, LA

2 LDR Channel Switching

Post by Jackie Treehorn »

I'm modding a Fender 75 which already has 2 LDR's. Anyone know of a clever way to do the channel switching?
dogears
Posts: 1902
Joined: Wed Feb 01, 2006 1:29 pm

Re: 2 LDR Channel Switching

Post by dogears »

Not to derail your question Jackie, but look at my photo post. Those are real! ;)

Also, the big Fuchs had is a Fender 75 that has been gutted and Dumbleized!
Jackie Treehorn
Posts: 236
Joined: Thu Jan 20, 2005 4:54 pm
Location: New Orleans, LA

Re: 2 LDR Channel Switching

Post by Jackie Treehorn »

dogears wrote:Not to derail your question Jackie, but look at my photo post. Those are real! ;)

Also, the big Fuchs had is a Fender 75 that has been gutted and Dumbleized!
Ok, I looked. Yes, those are some nice amps (you may now post gut shots of that Liverpool). However, no wall of doom is complete without some Marshall 4x12's. That's a serious wall of doom faux pas. :x

As punishment, you must now tell me how to do the channel switching with 2 LDR's. :)

Or you can tell me whether I need the post od tonestack to get the over the top Sonny Landreth type sounds.

I'm going to run this 75 ultralinear, it will have the trainwreck type 1 post phase inverter master, and I'm keeping the original tag boards; I'm trying to do quick and dirty, making due with parts already on hand.
dogears
Posts: 1902
Joined: Wed Feb 01, 2006 1:29 pm

Re: 2 LDR Channel Switching

Post by dogears »

Jackie,

The Wreck's belong to Bill Holter (Babaji) on TGP. They are authentic and kill! Sorry, I have no pics.... Maybe I can get some.

Also, I hear Sonny has the post OD stack. If you build that circuit, be mindful of the schematic errors. We can talk off line about it. PM me if you want.
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jaysg
Posts: 1211
Joined: Tue Feb 07, 2006 11:16 pm
Location: San Diego

Re: 2 LDR Channel Switching

Post by jaysg »

Jackie Treehorn wrote:I'm modding a Fender 75 which already has 2 LDR's. Anyone know of a clever way to do the channel switching?
umm, you need more LDRs? :?
http://www.geocities.com/twoseriesfenders/index.html will give you most of the Series II schematics and the sloclone forum has more than you need to see about Soldano's - http://sloclone.yesterdaysrevolt.com/
You may also have to improve the supply. The Series II supply sags badly if you add just one extra LDR. Not sure about the 75/135s.
Jackie Treehorn
Posts: 236
Joined: Thu Jan 20, 2005 4:54 pm
Location: New Orleans, LA

Re: 2 LDR Channel Switching

Post by Jackie Treehorn »

Ok, I gave up on the LDR's and got a 12 volt DPDT relay from Radio Shack. It's a 60ma draw. I suppose I could use a separate power supply; I don't want extra sag!

Actually, it looks like the draw from the LDR's was 40 ma each, so I should be in good shape.
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