| Nr. | Teilname | Beschreibung | Hersteller |
| 507521 | HT9020B | Hörton-Detektor | Holtek Semiconductor |
| 507522 | HT9032 | Identifizierung- der rufenden Leitungempfänger | Holtek Semiconductor |
| 507523 | HT9032-A | Rufnummernanzeige Empfänger | Holtek Semiconductor |
| 507524 | HT9032-B | Rufnummernanzeige Empfänger | Holtek Semiconductor |
| 507525 | HT9032B | Rufnummernanzeige Empfänger | Holtek Semiconductor |
| 507526 | HT9032C | Identifizierung- der rufenden Leitungempfänger | Holtek Semiconductor |
| 507527 | HT9032D | Identifizierung- der rufenden Leitungempfänger | Holtek Semiconductor |
| 507528 | HT9170 | DTMF Empfänger | Holtek Semiconductor |
| 507529 | HT9170B | DTMF Empfänger (18DIP) | Holtek Semiconductor |
| 507530 | HT9170D | DTMF Empfänger (18SOP) | Holtek Semiconductor |
| 507531 | HT9200 | DTMF Generatoren | Holtek Semiconductor |
| 507532 | HT9200A | DTMF Generatoren (8DIP/SOP) | Holtek Semiconductor |
| 507533 | HT9200B | DTMF Generatoren (14SOP) | Holtek Semiconductor |
| 507534 | HT9202A | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507535 | HT9202B | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507536 | HT9202C | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507537 | HT9202D | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507538 | HT9202F | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507539 | HT9202G | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507540 | HT9202H | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507541 | HT9202L | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507542 | HT9202S | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507543 | HT9274 | Viererkabel-Mikroleistung OPAMPERE | Holtek Semiconductor |
| 507544 | HT9302 | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507545 | HT9302A | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507546 | HT9302B | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507547 | HT9302C | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507548 | HT9302D | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507549 | HT9302G | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507550 | HT9312 | (HT9313) 12 Gedächtnis-Ton/ Impulsdialer | Holtek Semiconductor |
| 507551 | HT9312A | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507552 | HT9312AI | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507553 | HT9312AIT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507554 | HT9312AL | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507555 | HT9312ALT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507556 | HT9312AT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507557 | HT9312B | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507558 | HT9312BI | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507559 | HT9312BIT | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
| 507560 | HT9312BL | 12-Memory Tone/Pulse Dialer | Holtek Semiconductor |
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