Duh....just placed my Mouser order for an AB sans bedroom rheostat and realized that both 100W/25ohm jobbers need to be the slider type.
Is it a fools errand to attempt to expose the conductor on one (P/N588-D100K25RE) of those? I have never seen the guts of one but *ass*ume the insulator is some type of ceramic potting. No clue on the conductor.
I have a Dremel and a butt load of tools including diamond embedded ones of various size/shapes. Wire wheels as well.
Or...will I need some of FZ's zirconium encrusted tweezers?!?
That is someone's (Mark Huss' ?) mod of the AB without the bedroom mode. The real AB doesn't have taps on the upper resistor, and the non-bedroom mode version can be built without it as well. But this diagram DOES show taps on both, and so to that point - I would go and buy the right resistor and not try to mod what you have.
Yes! That is Mark H's rendition of the AB without bedroom option. Perfect for my vision as I have a VVR and am thinking that some combination of both AB and VVR will get me where I want to be in any playing situation. We shall see.
Feeling like I ought to do just that...order the right one...and get on with it. Still...I am feeling the need to dissect the extra one too for poops and grins. Maybe learn something of interest in the process. I could always fill in the excavation with some moldable ceramic after all is said and done if need be.
I run a 16 Ohm 1x12 cab into the 8 or 4 Ohm jack to cut down on volume. Doesn't kill the tone and cuts down on the volume enough for most situations. I keep a diy Airbrake in the car just in case but I rarely need to actually use it.
Finally got around to playing with the large resistors. Have been way busy growing algae to make jet fuel. Fortunately, I am doing it on Kauai. Could be worse places to work......I guess.
Opening up a spot on one of the resistors with the right Dremel tool(s) is a piece of cake.
I carfully exposed a ~1/4" diameter "dimple" at the halfway point just to the point that I could see the wire rib bumps (e.g. didn't touch the wire) using a diamond globe shaped tool. Then finished it off to the metal wire with a fairly stiff wire wheel disc shaped tool.
Measured a good solid 12.4 ohms once after tab installation.
