08-26-2025, 09:42 PM
I have not worked on a BOL (Beam of Light) pickup but there should be more info on this unique system in the Phorum. Check for several things:
Is the source lamp lit? I believe that it is driven by the local oscillator Ensure that the mirror is attached to the mechanism. this is how the light beam is modulated by the Audio signal from the record.
You can check the transformer or choke (whatever the device is) with a DVM.
Here is a link to the alignment and diagnostic procedure from PhilcoRadio.com:
https://philcoradio.com/repairbench/phono.htm
Hope this helps.
Is the source lamp lit? I believe that it is driven by the local oscillator Ensure that the mirror is attached to the mechanism. this is how the light beam is modulated by the Audio signal from the record.
You can check the transformer or choke (whatever the device is) with a DVM.
Here is a link to the alignment and diagnostic procedure from PhilcoRadio.com:
https://philcoradio.com/repairbench/phono.htm
Hope this helps.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis
Best Regards,
MrFixr55
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
