• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Help Old Radio Philips


2010-03-17 2:47 am

I have old Philips radio with phone/amplifier inputs. The type could be 483X-05 (not sure due to letter is not clear), NR E10999E00.

Anybody has this schema?

I would like to refresh/change the tube. The rect tube pinout is similar to AZ1, but the type is not clear (almost gone). Should have higher rating than AZ1 (but what tube type?).

The power tube is EL3??. I guest EL34, but it is wrong since the pinout (socket) is not octal (although 8 pin), almost like AZ1 (4 pins wide space, 4 pins short space). Seems like EL3, but not sure since there is additional number/letter after that. It is Miniwatt.

And about driver, somethink like EBF??. With a cap.


Ervin L


2010-03-17 2:47 am


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