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Author Topic: M 1070 Multi Elmac Power supply Schematic  (Read 2594 times)
K4RVN
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Posts: 790




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« on: February 22, 2013, 06:08:50 AM »

I am trying to check out a Multi Elmac M1070 AC/DC power supply. Has no high voltage, filament volts OK. Anyone have a schematic or know where I might download one?
Thanks for any info.
I used this with my AF 68 and AF 67 transmitters.

Frank
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K2DC
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Posts: 1380


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« Reply #1 on: February 22, 2013, 07:03:51 AM »

A quick search doesn't show much.  If it's any help, there's an assembly manual for an M1071 on BAMA:

http://bama.edebris.com/manuals/elmac/m1071/

Or, Surplus Sales has one for $15:

http://www.surplussales.com/Manuals/man_elmac.html

Or, you could try joining the Yahoo Group to see if anyone's got one:

http://groups.yahoo.com/group/multi_elmac/


GL & 73,

Don, K2DC
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K4RVN
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Posts: 790




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« Reply #2 on: February 22, 2013, 10:05:56 AM »

Thanks Don,
I am checking out all the links you sent.

Frank
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K4RVN
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Posts: 790




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« Reply #3 on: February 22, 2013, 11:40:52 AM »

Don, Found it on the Yahoo Group and just what I needed.

Thanks again
Frank
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K2DC
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« Reply #4 on: February 22, 2013, 01:47:21 PM »

Frank,

   Super!! Glad I could help.  Just remeber - Google is your friend.

73,

Don, K2DC
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K4RVN
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« Reply #5 on: February 22, 2013, 06:29:45 PM »

Don, I also got the M1070 Elmac supply going like it should thanks to your help and W9SX from the group.
I was not grounding the control voltage relay which connected the high voltage via push to talk. Also found a loose ground on a power resistor where it was soldered to the case.

Frank
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K4RVN
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« Reply #6 on: March 04, 2013, 08:24:01 AM »

To all who replied , Thanks. I have both the AF 67 and power supply working as they should. Amazing to me because the rig is over 50 years old and has been idle for 30 years or more. Even the outboard dow key change over relay worked just fine.

Frank
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W9GB
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Posts: 2655




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« Reply #7 on: March 05, 2013, 04:20:11 AM »

Great.

There are a number of restoration web pages for the Multi Elmac AF67.
Some nice photos and one ground-up rebuild.

SM2CEW Restoration
http://www.sm2cew.com/multielmac.html

John, W7ZFB Restoration and Mods
http://www.qsl.net/n9bor/MultiMods.htm

Dale, W4OP Restoration
http://www.parelectronics.com/vintage-multi-elmac-AF67-hf-transmitter.php

Jim, W8ZR : AF-68 "Transciter" restoration with M-1071
http://www.w8zr.net/vintage/transmitters/af68.htm

w9gb

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K4RVN
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« Reply #8 on: March 06, 2013, 07:01:25 PM »

Thanks for the links, I looked at all. I don't plan to restore this one, but it looks wonderful compared to one on the link. The under chasis is very clean, no dents in case of transmitter or supply. I have a gent that writes he wants it as it was his first rig so I plan to let it go rather than sit idle another few years. I do have my first receiver I bought a Lafayette HE10 that works great on a beverage anternna.

Frank
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