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1. [Amps] Alpha 78 Labels/upgrades (score: 1): Author: Eric Rosenberg <ericrosenberg.dc@gmail.com>; Date: Tue, 22 Feb 2011 12:03:33 -0500; I used a 78 for the first time this past weekend. Quit ehte machine. The bulb in the left (Plate) meter is out. Is hte bulb in and of itself replaceable, or do I need a new meter movement. If the lat; /archives//html/Amps/2011-02/msg00158.html (7,172 bytes)
2. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: "Martin Sole" <hs0zed@csloxinfo.com>; Date: Wed, 23 Feb 2011 21:56:02 +0700; Eric, The bulbs are mounted in sockets on the power supply pcb directly behind the meter movements. Once you have sourced the correct bulbs they are a simple replacement. On my 78 I have the meter sh; /archives//html/Amps/2011-02/msg00170.html (8,797 bytes)
3. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: MARK KEMPISTY <mkempisty@verizon.net>; Date: Wed, 23 Feb 2011 16:28:17 -0800 (PST); I also have the meter doubler circuit on my 78 and found a program on the web that will let you draw a perfect meter scale. I seriously considered doing it until I realized that just pasting the pape; /archives//html/Amps/2011-02/msg00175.html (7,363 bytes)
4. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: "Jim Tonne" <Tonne@Comcast.Net>; Date: Thu, 24 Feb 2011 17:30:36 -0500; Mark: Could you use some kind of solvent to remove the ink from the original scale? Then put the new one on top of the old. I have the same situation with an old Johnson Ranger. Haven't figured out h; /archives//html/Amps/2011-02/msg00179.html (7,528 bytes)
5. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: Eric Rosenberg <ericrosenberg.dc@gmail.com>; Date: Fri, 25 Feb 2011 15:28:27 -0500; Mark -- Is it possible to open up the meter and remove the scale? Is the scale an integral pasrt of the meter movement? If so, is there a solvent available that can remove the "printing"? In the mean; /archives//html/Amps/2011-02/msg00185.html (8,194 bytes)
6. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: "Martin Sole" <hs0zed@csloxinfo.com>; Date: Sat, 26 Feb 2011 08:10:11 +0700; Some time ago I looked at the Alpha amplifier meters from that era. I had a bad multimeter in a 78. From what I could understand at the time the movements were made by Modutec, I think they are now p; /archives//html/Amps/2011-02/msg00188.html (9,621 bytes)
7. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Sat, 26 Feb 2011 02:53:30 +0000; I don't know the rig, but can the original meter card be replaced with a thin sheet of plastic and the paper scale clamped over it? -- Ron KA4INM - There is nothing like twelve inches of snow to make; /archives//html/Amps/2011-02/msg00191.html (8,448 bytes)
8. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 27 Feb 2011 13:53:14 -0500; Eric, I believe the scale is removable in the 78/x74 as it is in 77 series. Another alternative is to out-source the scale to RAMMETERS.com. I know they've re-done old 78/x74 meter scales using the o; /archives//html/Amps/2011-02/msg00196.html (10,151 bytes)
9. Re: [Amps] Alpha 78 Labels/upgrades (score: 1): Author: MARK KEMPISTY <mkempisty@verizon.net>; Date: Mon, 14 Mar 2011 19:39:28 -0700 (PDT); In regards to adding a new scale to a Alpha 78's plate meter, after I realized that both scales would show (original and anything I added) I pretty much abandoned the thought. I didn't investigate t; /archives//html/Amps/2011-03/msg00111.html (7,110 bytes)

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