| Part No. | Where Used | Description | Equivalent |
| 412-633 | HD-1420, HD-1424 | LED | 5082-4484 |
| 412-640 | ET-3200 | LED | NL576A |
| 56-1 | AM-1, T-3, AV-1, TS-3, QM-1 | germanium diode | |
| 56-10 | IM-36 | silicon - 10v 40ma | G247 |
| 56-11 | germanium - 30v 50ma | 1N60 | |
| 56-12 | Tunnel - .35v 5ma | 1N2940 | |
| 56-13 | IP-27 | Zener - 56v 1w | |
| 56-15 | 1v 500ma | RCA34424 | |
| 56-16 | HR-1680 | Zener - 5.1v 1/2w | 1N751 |
| 56-17 | HM-10A | tunnel diode | |
| 56-18 | Zener 110v 20ma | 10M110Z | |
| 56-19 | HR-1680 | Zener - 9.1v 1w | VR-9.1 |
| 56-2 | AA-1, 337C | germanium diode | |
| 56-20 | HM-102, HD-1426, HM-2102, SA-2060A, IB-102, HW-9 | 1N295 | |
| 56-23 | HO-13 | voltage variable capacitor diode | |
| 56-24 |
HA-14,
SB-200, SB-201, HR-1680, SB-220, SB-221, SB-230, HW-9 |
silicon | 1N458 |
| 56-25 | SB-100, SB-101, SB-110A | Zener - 15v 1w | 1N4166A |
| 56-26 |
SB-100,
SB-610, SB-630, HN-31, 309C, HM-15, HW-16, HA-14, SB-200, HR-1680, SB-101, SB-220, IG-18, SB-201, SB-221, SB-230, SB-110A, HW-7, GR-78, HW-22A, IT-12, IT-18, IG-57A, IM-102, HW-9 |
germanium diode | 1N191 |
| 56-27 | Silicon - 2v 20ma | S160 | |
| 56-28 | SB-644, SB-110A | Silicon - 25v 10ma | GE-S127 |
| 56-29 | Zener - 110v 1ma | VR1101 | |
| 56-30 | Tunnel - 22ma | 1N3270 | |
| 56-31 | IP-2718 | Zener - 6.8v 10% | PS18775 |
| 56-32 | IG-57A | Zener - 13.5v 1w | |
| 56-33 | 100v 125ma | 1N3754 | |
| 56-35 | Silicon - 20v 25ma | 1N4951 | |
| 56-36 | IM-103, IB-1100 | Zener - 16.1v 1w | |
| 56-4 |
AM-1,
CM-1, FMO-1, HM-11, PM-2, GC-1A, HA-20, SB-10, HW-29, HW-30, HX-10 |
60v 4ma | HD2257 |
| 56-44 | CI-1080 | Zener - 4.7v 1w | |
| 56-45 | IG-57A | Zener - 20v 1w | |
| 56-46 | Zener - 9v 10ma | 1N2163 | |
| 56-47 | Zener - 27v 9.5ma | 1N4750A | |
| 56-48 | IP-27 | Zener - 110v 3w | BZT110A |
| 56-5 | EC-1, HX-10 | silicon - 150v 1ma | HD6226 |
| 56-50 | HR-1680, IP-2718 | Zener - 3.6v 1w | 1N4729 |
| 56-55 | HW-7, HW-9 | Zener - 36v 1w | VR-36A |
| 56-56 |
IM-103,
HA-201, HD-1422, ET-3100, ET-3200, HP-1144, SB-644, IG-18, IB-1100, IB-5281, HW-9, GC-1107, GD1190 |
silicon - 75v 10ma | 1N4149 |
| 56-57 | SB-650, IP-2718 | Zener - 12v 0.5w | 1N716A |
| 56-58 | Zener - 6.2v 25ma | 1N5234B | |
| 56-59 | IM-102 | Zener - 4.7v 0.5w | 1N750A |
| 56-6 | GC-1A, HD-1422, HR-20 | Zener - 6.8v 10% 1w | 1N754 |
| 56-60 | Tunnel - .35v 25ma | TD716 | |
| 56-61 | Silicon - 12v 1ma | STB620 | |
| 56-62 | Zener - 9v 7.5ma | 1N939 | |
| 56-609 | SB-230 | Zener - 8.2v 50w | 1N2806A |
| 56-613 | GD1190 | Zener - 4.7v 0.5w | 1N750A |
| 56-620 | ET-3100, HP-1144 | Zener - 15v 1w | 1N4744A |
| 56-63 | IB-1100 | Zener - 5.6v 10.5w | MZ500 |
| 56-630 | GC-1107 | Zener - 22v 10% 1w | 1N4748A |
| 56-640 | GD1190 | ||
| 56-646 | HW-9 | BA-244 | |
| 56-64 | 1N4751A | ||
| 56-65 | Zener - 68v 3.7ma | MZ100033 | |
| 56-66 | IG-18 | Zener - 43v 1w | VR43/1N3035 |
| 56-67 | Zener - 10v 1w | 1N4740A | |
| 56-68 | IP-27 | Zener - 68v 1w | ZVR68 |
| 56-69 | LD107 | ||
| 56-7 | GC-1A | 1N2326 | |
| 56-71 | IB-102 | Zener - 6.2v | 1N825A |
| 56-72 | Zener - 43v 1w | 1N4755B | |
| 56-73 | 50v 100ma | MZ2360 | |
| 56-75 | IB-102 | Zener - 5.1v | 1N5338B |
| 56-76 | Zener - 30v | 1N5256B | |
| 56-77 | FV1010 | ||
| 56-78 | IM-102 | 25v 100ma silicon | FH6259 |
| 56-79 | Zener - 275v 23ma | R4507 | |
| 56-8 | 20v 20ma ger | ED5 | |
| 56-81 | 1kv 1ma | GR187 | |
| 56-82 | SB-220, SB-221 | Zener - 5.1v 10 watt | 1N3996A |
| 56-87 | IM-102 | 5v 10ma silicon | FH1100 |
| 56-89 | HR-1680, IB-5281 | 25v 100ma silicon | GD510 |
| 56-9 | HX-10 | encapsulated matched pair | |
| 56-90 | IM-102 | Zener - 12v | 1N4742A |
| 56-91 | IM-102 | Zener - 6.2v | 1N823 |
| 56-93 | IM-102 | silicon | FD333 |
| 56-97 | ET-3200 | Zener - 7.5v | 1N3017 |
| 56-98 | 1N5283 | ||
| 56-99 | Zener - 2.7v | 1N5223B | |
| 56-M4 | HW-32, HW-12 | ||
| 57-1 | GD1A, V6 | selenium rectifier | |
| 57-11 | MM-11 | rectifier | CX2C2D |
| 57-12 | IB-28 | bridge | |
| 57-13 | FMO-1, CA-1, EC-1, GD-1B, IP-32 | selenium rectifier - 50ma | |
| 57-17 | 1N1084 | ||
| 57-18 | 1N2154 | ||
| 57-2 | TS-3, SG-8 | selenium rectifier | |
| 57-21 | AG-10 | silicon 360v 150ma | M150 |
| 57-23 | RF-1, IO-10 | silicon - 200ma | K200 |
| 57-24 | 1N2095 | ||
| 57-26 | 1N2094 | ||
| 57-27 |
SB-100,
SB-610, SB-620, SB-630, GD125, IP-10, DX-60, HD-1481, HP-23A, HP-23C, IM-103, GR-64, EUW-15, HP-13A, IP-32, SB-200, HA-20, GR-91, IP-17, SB-101, SB-220, HO-10, HO-13, SB-201, SB-221, SB-230, HW-29, HW-30, HW-32, HW-16, HW-22A, SB-650, HW-12, IB-28, IP-27, IT-12, IM-11, IB-1100, IG-57A, IM-102, HW-9, HX-10, IT-7400 |
silicon 750 ma 500 PIV | 1N2071 |
| 57-28 | 1N2070 | ||
| 57-29 | SB-110A | silicon 750 ma 100 PIV | CER100 |
| 57-31 | 1N2860 | ||
| 57-34 | 1N3491 | ||
| 57-35 | 1N3491A | ||
| 57-4 | AV-1 | ||
| 57-42 | IP-2718, IM-102 | 100v 3a | 3A1 |
| 57-44 | SB-610, SB-620 | selenium rectifier | P3340H |
| 57-53 | 2N3273 | ||
| 57-6 | TC-3, IB-28 | rectifier | |
| 57-65 |
CI-1080, IT-121,
ET-3100, ET-3200, HP-1144, HR-1680, IG-18, GR-78, SB-650, IB-1100, IP-2718, IB-102, IM-102, HW-9, GC-1107 |
silicon | 1N4002 |
| 57-7 | M-1 | rectifier | |
| 57-71 | IM-102 | 50v 5a | S-5A05 |
| 57-86 | HP-1144 | SCR 100v 35a | NL576A |