Knight Audio Generator
| Preliminary Information | |
|---|---|
| Leak Risk | Low |
| Batteries | None |
| Destructive Entry | No |
The Knight Audio Generator is a waveform generator based on tubes and an air variable capacitor. Its electrolytic capacitors are likely to have dried out over time.
Known Issues
Symptom or Problem Encountered
Causes
Solutions
Disassembly Notes
Remove all screws from the front and rear of the device. While pulling the spring-loaded handle, slide the cover away from the front panel to reveal the inner assembly.
Original Parts
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C5 | 1 | .02 µF | 400 V | Paper | |||||||
| C6 | 1 | 20 µF | 350 V | Axial | Condensor, Dry Electrolytic | ||||||
| C7, C8 | 2 | 20 µF | 150 V | Axial | Electrolytic | ||||||
| C9 A, C12 A | 2 | 50 µF | 450 V | Dual radial | Electrolytic, in same housing as B | ||||||
| C9 B, C12 B | 2 | 80 µF | 475 V | Dual radial | Electrolytic, in same housing as B | ||||||
| C10, C13 | 2 | 0.25 µF | 400 V | Axial | Paper | ||||||
| C14 | 1 | 100 µF | 150 V | Axial | Electrolytic |
Replacement Parts
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| C5 | 1 | ECW-HA3C203H / ECW-F6203HLB | Digikey Mouser |
| C6 | 1 | 226TTA350M / MAL204216229E3 | Digikey Mouser |
| C7, C8 | 2 | 226TTA250M / TVA1410 | Digikey Mouser |
| C9 A, C12 A | 2 | EKXL451ELL470MU25S / EKHE451ELL470MJ451 | Digikey Mouser |
| C9 B, C12 B | 2 | 500LXW82MEFR18X40 / 500HXW82MEFR16X45 | Digikey Mouser |
| C10, C13 | 2 | 418P25496MB3 / F861BG254M310Z | Digikey Mouser |
| C14 | 1 | 107TTA160M | Digikey Mouser |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.