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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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30th Aug 2021, 3:44 pm | #1 |
Hexode
Join Date: Mar 2008
Location: Wakefield, West Yorkshire, UK.
Posts: 438
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Murphy 618 Tx
Hi. I'm confused with how the AE Current circuit is actually wired up. In the schematic, one side of the variometer is connected to ground through the primary of T4, a toroidial transformer, which secondary feeds the AE current meter. But, as actually wired up, one side of the variometer is connected to a 6BA bold that holds down and runs through (axially) T4. That is making that bolt the primary for T4. But I'm having a hard time believing this circuit could possibly work. Please enlighten me. Thank you. Rich
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30th Aug 2021, 4:47 pm | #2 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: Murphy 618 Tx
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30th Aug 2021, 6:57 pm | #3 | |
Hexode
Join Date: Mar 2008
Location: Wakefield, West Yorkshire, UK.
Posts: 438
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Re: Murphy 618 Tx
Quote:
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14th Sep 2021, 5:45 pm | #4 | ||
Tetrode
Join Date: Feb 2012
Location: Bishop Auckland, County Durham, UK.
Posts: 91
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Re: Murphy 618 Tx
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Cheer Andy |
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