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610 alignment
keith49vj3
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#1

01-30-2017, 09:47 PM
This can't be correct.  The alignment instructions on Nostalgia air say to hook the output meter up to the plate and cathode of the 42 tube for alignment.   Since the cathode is grounded this just reads the plate voltage.  So do I hook it up between the plate and grid (pins two and three of the 42 tube)?
Thanks,
Keith


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morzh
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#2

01-30-2017, 09:50 PM
It is correct. You do want plate voltage to Chassis/cathode. You should use AC setting for that, you are not interested in the DC.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
(This post was last modified: 01-30-2017, 09:52 PM by morzh.)
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keith49vj3
Member
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Posts: 157
Threads: 36
Joined: Dec 2009
City: Johnston, IA
#3

01-30-2017, 10:37 PM
Got it! The last radio I aligned I was measuring avc voltage so I had the meter on DC.
Thanks,
Keith
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morzh
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#4

01-30-2017, 10:43 PM
It doesn't matter, you could put the leads at the output transformer secondary, across the voice coil, also on AC, or measure DC on AVC voltage. They are all good indicators.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
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  1. The PHILCO Phorum
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