I bought a very nice HXL-ONE amplifier from Hank Arney and it has a modification that I want to undo. A previous owner added the tuned input filters (factory supplied mod) but for some reason did not gang that switch with the frequency switch. Instead an additional control was brought out of the screw hole on the left side of the power switch. The screw hole was enlarged to 3/8" to accept a threaded panel bushing. A flexible coupling connected the control to the tuned input switch. The original configuration uses a dial drum on the frequency switch (top of chassis) and passes dial cord through a slot in the chassis to the matching dial drum attached to the tuned RF switch (below chassis). Its your typical radio dial drum arrangement where each detent of the frequency switch also switches the tuned RF switch.
I removed the control and bushing and measured the enlarged hole. I did note that the hole is just about 0.1 inches wider than the original screw head diameter. So I was figuring on locating just a tad wider diameter screw head to fill that position, and maybe the other screw on the right side of the power switch. Anyway, the owner removed the under chassis bracket support for holding the 1/4" shaft and dial drum. I'm bending up a new bracket here at work, the 1/4" shaft and coupling will be easy, and buying a simple nylon bushing from Mouser. What I need is a standard 1 3/8" dial drum for a 1/4" shaft. Admittedly I didn't remove the dial drum and measure. Instead I measured it in place. If you have a junker HXL-ONE, maybe you'd consider selling me the bracket as well as the drum. If you have a drum in the junk box, that would be great also! Can you help me here? I will try to put a photo of the drum up on the web tonight and I'll post a link tomorrow. Thanks. 73, Scott WA9WFA http://www.qsl.net/wa9wfa
