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Loudthuds suggestion may be it come to think of it. On one plan I've studied it shows about a 30-50% lower value for 2ohm from 4 - as in 22k from 39K specifically....
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It sounds to me that your possibly getting too much signal voltage at the peak of the swing and the power tubes are turning off, or whatever the correct terminology...
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Basically just drop V2 and the ancillary reverb bits, but you are definitely in trial and error mode, but that is good for learning. As a self taught amp...
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AES/tubesandmore also has vulcanized fibreboard for Fender eyelet boards. Have to dig on the site to find it as sometimes their items are in other/wrong sections-...
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If your still looking for the how-to info go to HoffmanAmp site-EL34.com-...in the library section as I recall he has a step-by-step guide to redo a Princeton,Deluxe...
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Question about confirming OT 2ndr'y's
Got the answer elsewhere...Last edited by UniPlank84's; 08-31-2010, 04:00 PM.
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Mesa schematics show a FX I/O loop with a mix pot. I know it is in the Subway series and likely others.
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Maybe this would work???
As said above why waste money and time converting to PP? If both the SE OT's are good I'd be making a Mini-z, Vjr, or Smokin'Joe...
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Thanks for all the details and insights Bruce and Tubeswell. I did notice the 5F2h at Weber, but did not look at the schematic/layout. Before looking at it...
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5F2-A SS rectifier and other ?'s
Hi All,
As I work my way through my beginner attempt to learn and repair the small Mesa I am mentally tinkering on a build for a small 5-8watt...Last edited by UniPlank84's; 01-07-2009, 06:09 AM.
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Hello- It's a DC tx'fr Chuck. Sorry for my ignorance. I called a local electronics store to ask about this transformer before proceeding and got impatient...Last edited by UniPlank84's; 01-02-2009, 12:28 AM.
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Here is what I found, hope my results and terms are correct-still learning-
16.6volt signal gave: Primary-97mV plate to plate, 196mV both sides...Last edited by tboy; 12-31-2008, 08:46 AM.
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How to check O/T health?-Mesa ReverbRocket
Hello,
I am seeking info on diagnosing the O/T function and health on a double-ended el84 Mesa.
I just registered so I can post...Last edited by UniPlank84's; 12-26-2008, 03:30 AM.
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