Radio Tube UBL1
UBL1
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Openclipart
Radio Tube UBL1
2012-08-24T08:21:11
This is the schematic symbol of an old radio tube from the 1940´s. It´s the UBL1 Duodiode-Output Pentode.
http://openclipart.org/detail/171873/radio-tube-ubl1-by-tomelec-171873
tomelec
clip art
clipart
duodiode
electronic
output pentode
radio tube
ubl1