I've been on a bit of the retro kick lately. Picked these two up in trade for an early 2000's Sony amp that had sat on the shelf for about 10 years. The Leader scope's power button was broken (at the switch itself, all the way in the back) and it was covered in solder splatter, both were quickly remedied and it looks/works great, just need to clean the knob contacts on Channel 2 and it'll be a flawless little 50Mhz 2 channel CRO.
The power supply works somehow, but there's a HUGE burn and the remains of a resistor on one channel and the remains of an exploded diode on the other. Had a close look and someone's jerry rigged it so that current limiting and voltage regulation work, but now the OC protection spikes it to negative voltages and the fine adjust knobs have some odd behavior. Luckily, the original manual was included and it has a nice legible schematic. Gonna restore the original circuitry and see how she does. Looks to be a re-badged Lodestar 303d, dual tracking 0-30v 3a.
Sorry about the pic... the iphone strikes again...