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Old 10th April 2011, 01:47 AM   #1
tony Ma is offline tony Ma  United States
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Default Can you identify this AMP??

I just got this amp
the guy said that is amp 2A3
Can some one identify this amp and give me a hint to operate this amp?
I believe the transformer is HADLEY
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Old 10th April 2011, 06:04 PM   #2
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The relay makes me think jukebox - the heaters were switched on as the play cycle started... 4 2A3s and a 5Z3? No sockets for small-signal tubes, which would be 5-6 pins.
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Old 10th April 2011, 06:43 PM   #3
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Tom,

I concur in your analysis. That thing is OLD. I see no evidence of 'lytics, whatsoever. Is that a rubber band I see holding a 0.1 μF. axial lead cap. in place? That might be the only cap. that needs "automatic" replacement, as the PSU parts seem to be "oilers". I wonder what is concealed by the tape wrapping. Do you think that there a 2 channels, for a pair of speakers? Where are the power and I/P signal connections?
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Old 11th April 2011, 12:12 AM   #4
tony Ma is offline tony Ma  United States
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Hmmm what should I do? I thought I found diamond in the rack but it seems not
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Old 11th April 2011, 12:20 AM   #5
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likely external PS, with interstage xfmrs?? dunno... maybe 4 x 2A3 outputs...

guessing

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Old 11th April 2011, 12:53 AM   #6
kevinkr is offline kevinkr  United States
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I don't think it is an amp at all, but possibly some sort of power supply for who knows what. I'm more or less clueless, but I think I see a lot of recognizable rectifier socket wiring (at least 3) and not much else..
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Old 11th April 2011, 02:57 AM   #7
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Quote:
Originally Posted by kevinkr View Post
I don't think it is an amp at all,
Neither do I. I enlarged the picture and took a good look. There are three cut cable bundles that were probably for power feed and control to and from something else.
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