Data set 01
1953 RFT Rundfunk Technik
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
TransformerVoltageRMS
250 V
Rectifier - Half Wave ·Rectifier
UY11
Indirectly heated half-wave rectifier for AC/DC receivers using 100 mA series-heater chains. Its 50 V heater provides moderate current for transformerless supplies.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- -
- Socket code
- P8A
- Base pins
- -
- Nominal heater
- 50 V / 100 mA
Description
The UY11 is an indirectly heated half-wave rectifier. The sheet tabulates permissible reservoir-capacitor and series-resistor combinations over several AC input-voltage ranges and allows as much as 140 mA DC in favorable conditions.
Socket description
European 8-pin side-contact base
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- -
- Socket code
- P8A
- Base pins
- -
- Nominal heater voltage
- 50 V
- Nominal heater current
- 100 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
Terminal pinout
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
Section ratings
1 physical section, each with unique specifications.
Section 1
Rectifier
X-ray radiationInterelectrode capacitances
- Rectifier nominal output current
- 140 mA
- Rectifier max heater-cathode voltage
- 550 V
Half-wave rectifier; transformer-dependent current limits preserved as parameters.
Source-dependent data
Operating conditions by source
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 02
1957 Philips Receiving and Amplifying Tubes
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristic
Heater Voltage
50 V
Heater Current
100 mA
Other
RMSInputVoltage
250 V
Reservoir Capacitance
60 uF
Data set 03
1959 Telefunken
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Other
Maximum AC input voltage
250 V rms
DC output current
80 mA
AC=170-250Vrms;C=32-60uF;R=50Ohm
DC output current
140 mA
AC=170-250Vrms;C<16uF;R=0Ohm
Data set 04
1999 Philips E-Z
Published operating points and test conditions from this source.
SECTION 1
Rectifier
Characteristics
2) with this tube a protective resistance must be
2 w
2) with this tube a protective resistance must be
2) Tith this tube a protective resistance must be
2 s
2) Tith this tube a protective resistance must be