Hi 😀 I am looking following parts and not able to find online stores. Motorola HEP-S100 Transistor and Interrupter sensor GE H13B1/2. Or any other replacement part numbers would appreciate. These parts for upgrading my linear tonearm (Rabco SL-8E) servo drive. Thanks in advance for the help.
Rajkumar

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Hi Rajkumar,
I am trying the same right now.
The GE H13B2 is on ebay in Southern California.
I did not find a data sheet for the HEP-S100. Seems to be a generic constructors parts line similar to NTE or ECG with wide spec. range.
The original Rabco SL-8E circuit uses 2N3705. I will try some BC337 I have on hand.
Dave
I am trying the same right now.
The GE H13B2 is on ebay in Southern California.
I did not find a data sheet for the HEP-S100. Seems to be a generic constructors parts line similar to NTE or ECG with wide spec. range.
The original Rabco SL-8E circuit uses 2N3705. I will try some BC337 I have on hand.
Dave
Hi Dave,
Thanks for your information, I had ordered interrupter from CA, please let me know if you find HEP-S100 Thanks Rajkumar
Thanks for your information, I had ordered interrupter from CA, please let me know if you find HEP-S100 Thanks Rajkumar
Hi Arch Stanton, could you give me modern NPN transistor number, I am not electronic expert 😀. Thanks Rajkumar
Rajkumar,Hi 😀 I am looking following parts and not able to find online stores. Motorola HEP-S100 Transistor and Interrupter sensor GE H13B1/2. Or any other replacement part numbers would appreciate. These parts for upgrading my linear tonearm (Rabco SL-8E) servo drive. Thanks in advance for the help.Rajkumar
You are jumping the gun.
This is my circuit that you lifted from my post on another forum:
https://www.lencoheaven.net/forum/index.php?topic=18696.150
https://www.lencoheaven.net/forum/index.php?topic=18696.330
That circuit was for a radical modification and will not work as a simple retrofit for a stock SL8E. I have developed a new circuit that will work as a simple retrofit for a stock SL8E, and will be starting a new thread for that very soon, complete with updated schematic and currently sourced parts list. Please be patient.
Ray K
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