Philips B2X60U

1956

Condition and performance:

	Cabinet:	90%
	Reception AM:	90%
	Sound Quality AM:	70%
	Sound Quality P.U.:	?

Features:

	P.U. Entrance:	Yes
	Tape Recorder Entrance:	No
	Extra Loudspeaker Output:	No
	Loudness:	Yes, bass
	Treble Control:	Yes, switchable
	Bass Control:	No
	Tone Register Switches:	No
	AM Bandwidth Switch or Control:	No
	Tuning Indicator:	No
	Build-in Antenna:	Yes, SW plate antenna
	Build in Ferrite or Window Antenna:	Yes, MW and LW ferrite antenna

Technical Specifications (Partially measured):

	Tubes:	UCH81, UF89, UBC81, UL84, UY42.
	Wave Bands:	LW, MW and KW from 16 - 50 meters
	Intermediate Frequencies (IF):	452 kHz
	Loudspeaker:	AD 3500 X
	Resonance Frequency Fs:	?
	Frequency Range Power Amplifier:	?
	RMS Output Power at 5 Ohms:	?
	Cabinet:	Bake-lite, dark brown.
	Dimensions:	32.5 x 19.5 x 18.5 cm
	Mains Power Voltages:	110, 127, 220 Volts~
	Mains Power Consumption	55 Watts
	Retail Price	?

Description:

The Philips B2X60U is technically the same as the Philips BX210U.
Main differences are the cabinet style, tube line up and the ferrite antenna.
The cabinet style is the Philips "Philetta" style, but without the push buttons on the later Philips Philetta radios.

Repairs:

Before making any repairs and measurement, a safety transformer is used as well as a series bulb of 220V~ 60W is used. After a few minutes, I found out there are no big problems.

Cabinet is cleaned inside.
Metal grille was loosen which resulted in a buzzing sound and is fixed well.
All the black tar capacitors are replaced by new ERO MKT polyester capacitors of 1000V= due to leakage. Safety and reliability is also improved.
(Note: The reaming tar capacitors in the picture are also replaced later.)
Taper volume potentiometer is replaced by a new one of 50K+450K. The carbon layer of the old potentiometer is totally worn out.
Loudness network of 10K and 15 nF is replaced by 10K and 22 nF. This results in a more clear sound and better voice reproductions, while there is still enough bass for music.
Dial cord is renewed.
Loudspeaker grille is fixed with glue.
Ceramic coupling capacitor between UBC81 and UL84 of 10 nF 350V is replaced by a polyester film capacitor of 10 nF 630V.
Leakage resistor of 4M7 G1 of the UBC81 is renewed, due to the noisy sound.

Performance:

The reception sensitivity is very high, due to the large ferrite antenna The sound quality of this small radio is also well and full in the bass.

Disclaimer:

This radio is directly supplied from the mains power. The high voltage supply is directly taken from the mains power, which means the radio chassis and components carries the 230 Volt~ mains voltage, which is very dangerous. Before making any repairs on the radio or playing the radio without the back plate, use a safety transformer with separate windings. The insulation of the windings must withstand at least 4000 Volts AC as well as a low leakage current of 0.5 mA~ or less.

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