Challenge has finished
Take photos from electronic boards, Transistors ,Capacitors , ...
Wednesday, 18th April, 2012 (GMT)
Wednesday, 25th April, 2012 – Tuesday, 1st May, 2012 (GMT)
Wednesday, 2nd May, 2012 – Tuesday, 8th May, 2012 (GMT)
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Maximum number of entries per user:
Maximum number of entries in challenge:
PL500 power pentode. Originally designed as beam pentode intended for use as line output tube in television receivers. You can still use these pentodes for building quite a nice audio or guitar amplifier.
|Submitted:||Saturday, 28th April, 2012 11:55 (GMT)|
|Taken:||Monday, 23rd April, 2012|
|Focal length:||90 mm|
|Shutter speed:||8/5 sec|
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