Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plexi50 on November 19, 2011, 12:56:21 am
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I bought a Delta Blues this afternoon. Man what a great amp! I was wondering if there has been any disscusion about how hot the PT gets on these amps. I mean it gets seriously hot and i have read about this online in some other threads. No talk about changing them out though for a beefier PT
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PTs get hot unless they are oversized or use very high quality steel in their construction. I'm guessing the Peaveys do not. If the amp's been running that way and has not failed and sounds normal I wouldn't worry about it at all.
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It's a head. Not a lot of air flow.
The PT is not typical, It has a HV winding and a 24v for the filaments (Series connected) and feeds a supply with different voltages for switching, ss reverb and bias.
By the way, just got one off the bench. These have the infamous "Folded circuit board". Had to do a cap job due to two caps dying. Not fun to work on.
And with all that... It does sound pretty good. :-)
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I have one of the first Delta Blues made. It gets incredibly hot! It always has... and has never failed. I used it for a few years, my son used it for a few years, and it was actually used as a bass amp for a while. They were sold in Europe as the Hammond T-100 organ amplifier so a bass wasn't really a strain. As poorly as they are constructed, they do seem to be indestructable. Also, not a bad sounding amp, especially considering the crud the other companies were making at the time for 3 or 4 times the cost. So, unless you see flames, the heat is probably normal.
BTW, I've never seen a Delta Blues head. I thought if they were a head, they were called something else, Classic 30 or something. All I've ever seen are combos with 15" speakers.
Dave
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Yeah there a different bird to work on. Im used to them and the classis 30-50 by now. I sort of enjoy working on them believe it not. This is the first one i have owned myself. Im hooked. Super toneful. I suppose it's like you say: If it's not broken dont mess with it
The 15" speaker is sweet and full rounded
This a 1995 model. Had to clean the sockets out of it. 2 Ben Franklins