| RCI 2950 | C261& 262& 270 | 330pf |
| Cobra 18/20 | C42&C41 | Parallel both with a 47pf |
| Cobra 18Plus | C98 | 68-100pf |
| Cobra 19X | C325 | <47pf |
| Cobra 19XS | C245 | <47pf |
| Cobra 19Plus | C312 | 47pf |
| Cobra 21GTL/LTD | C46 | 68-100pf |
| Cobra 21Plus | C87 | 68-100pf |
| Cobra 25GTL/LTD/Classic | C62 | 68-100pf |
| Cobra 25Plus | C87 | 68-100pf |
| Cobra 29GTL/LTD/Classic | C62 | 68-100pf |
| Cobra 29XLR | C57 | 68-100pf |
| Cobra 29Plus | C87 | 68-100pf |
| Cobra 90LTD | C355 | 47pf |
| Uniden PC33/55 | C41&C42 | <47pf Cap |
| PC66XL | Same as The Cobra 25GTL/LTD/Classic Mod | |
| PC76XL | Same as The Cobra 29GTL/LTD/Classic Mod | |
| Uniden Zachary T | C61 | 47pf |
| Galaxy DX 949,DX 959 | 1. Remove C218 (3pf) and discard 2. Change C216 (470pf) to a 1000pf (100v mylar) 3. Remove C210 (470pf) and discard 4. Remove C199 (560pf) and put it in the C210 spot. |
| 1. Hook the brown wire to 8 to 10volts,if you can't find 8 or 10 volts hook a 1k{1/2watt}resistor to a 13.8volts source |
| 2. Hook the black wire to a pc board ground or solder it to a metal can in pc board |
| 3. Unsolder the audio wire from the mic socket,next hook the white wire from the echo board{J2}to the pin on mic socket where you unhooked the audio wire. |
| 4. Solder the white wire from{J1}on the echo board to the wire that was unhooked from the mic socket. |
| 5. Solder both shields from J1&J2 to pc ground or the metal can's on board, Thats all there is to it.... |
