NOTE: This update adds a bandpass filter to the return signal amplifier.
| Item | Qty | Designation | Value | Type | Marking | Body Color |
| 1 | 1 | C2 | .01uF | 160V polyester | 103K 250V | maroon |
| 2 | 2 | C1, C5 | .1uF | 160V polyester | 104K 250V | maroon |
| 3 | 1 | C4 | .22uF | 160V polyester | 224K 400V | maroon |
| 4 | 1 | C6 | 8200pF | 100V ceramic | 822 | yellow |
| 5 | 1 | C9 | .47uF | 50V ceramic | 474 | yellow |
| 6 | 1 | C3 | .22uF | 100V ceramic | 224 | yellow |
| 7 | 1 | C7 | 10uF | 16V tantalum | 106 +16K | yellow |
| 8 | 1 | C8 | 3300uF | 25V electrolytic | 3300uf 25V | varies |
| 9 | 1 | R7 | 0.2 | 1W pwr. resistor | red-black-silver-gold | gray |
| 10 | 1 | R9, R14 | 10 | 1/4W carbon film | brown-black-black-gold | tan |
| 11 | 2 | R2, R11 | 100 | 1/4W carbon film | brown-black-brown-gold | tan |
| 12 | 1 | R8 | 47 | ½W composition | yellow-violet-black-gold | brown |
| 13 | 1 | R1 | 470 | ½W composition | yellow-violet-brown-gold | brown |
| 14 | 2 | R6, R16 | 1k | 1/4W carbon film | brown-black-red-gold | tan |
| 15 | 2 | R5, R15 | 4.7k | 1/4W carbon film | yellow-violet-red-gold | tan |
| 16 | 2 | R3, R10 | 10k | 1/4W carbon film | brown-black-orange-gold | tan |
| 17 | 1 | R4 | 22k | 1/4W carbon film | red-red-orange-gold | tan |
| 18 | 1 | L5 (@ R13) | 220uH | Miller 78F | 221 | blue / green |
| 19 | 2 | L3, L4 | 8.2uH | Miller 5800 | 8R2 | black |
| 20 | 2 | L1, L2 | 1mH | Miller 5800 | 102 | black |
| 21 | 1 | X1 | 12.6 VAC | transformer | varies by mfgr. | varies |
| 22 | 2 | D5, D6 | BAT43 | schottky diode | BAT 43 | blue |
| 23 | 4 | D10-D13 | 1N4002 | rectifier diode | 1N4004 | black |
| 24 | 6 | D1-4, D7, D8 | 1N4148 | signal diode | F 41 48 | clear glass |
| 25 | 1 | D9 | 1N5234B | 6.2V zener diode | F 523 4B | clear glass |
| 26 | 1 | D14 | LED1 | red | none | red |
| 27 | 1 | MOV | V130LA2 | MOV | 1302 | red |
| 28 | 2 | Q1, Q2 | 2N2222A | NPN transistor | PN2222 A | black |
| 29 | 1 | Q3 | IRF630 | N-channel FET | IRF 630B | black/silver |
| 30 | 1 | U1 | LM318 | 8-pin op-amp | 318 | black |
| 31 | 1 | J1 | AC outlet | Kobiconn | none | black |
| 32 | 1 | F1 (version 1.1) | Pico fuse | 1A SB | 1A | yellow |
| 33 | 1 | F2 (version 1.1) | Pico fuse | 3/8A SB | 3/8A | yellow |
| 34 | 1 | case | case | Polycase | none | |
| 35 | 1 | PCB | PCB | XTB | XTB | |
| 36 | 1 | power leads | #20 wire | #20 stranded 23" | PVC 600V | black |
| 37 | 1 | ground lead | #20 wire | #20 stranded 8" | PVC 600V | green |
| 38 | 1 | (for ground lead) | 1/8" | shrink sleeving | 7/8" long | black |
| 39 | 1 | (for ground lead) | 3/16" | shrink sleeving | 1" long | black |
| 40 | 1 | (for LED) | #24 | sleeving | 2" long | clear |
| 41 | 1 | case back label | XTB label | self-stick | 1 3/8 x 1 7/8 | silver |
| 42 | 1 | warning label | 24W label | self-stick | 1/2 x 1 3/4 | silver |