| Home |
| Search |
| Today's Posts |
|
#3
|
|||
|
|||
|
Yet another question (sorry), about the HQ-160's slot filter circuit.
Given the schematic, should there be B+ up on the slot filter assembly on the front panel, on the cable's center conductor? I have plenty of it there. The schematic, no matter how cross-eyed I look at it, shows that every path B+ could take to the slot assembly is blocked by a cap. But I measure nearly 200V on the cetner-tapped inductor under the chassis, the slot depth pot, and the cable feed to the assembly. I wonder if I have a shorted cap inside T3. However, both top and bottom slugs of T3 are tunable. Maybe one of the .01 disk caps under the chassis is shorted? FWIW, the two caps on the assembly are keeping the B+ off the coil itself. Also, shorting out the cable to ground thru a separate cap does not affect anything. Tnx, Mike K. AA1UK Oscar loves trash, but hates Spam! Delete him to reply to me. |