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Old 16th June 2012, 08:05 AM   #1501
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Originally Posted by ArcticBreaze View Post
Why did fender put sooo many input sockets on the 5E3 Delux how many guitars can ya play at once and its been my experiance that guitarists dont share. lol gona have to build a whole new chassis for mine one day just to get rid of the empty holes.
and lose 99% of the resale value of this collectible piece lol
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Old 16th June 2012, 08:23 AM   #1502
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Originally Posted by costis_n View Post
and lose 99% of the resale value of this collectible piece lol
so I'd only get 50 cents? lol
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Old 2nd July 2012, 01:07 AM   #1503
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Question Winner? for crying out loud!

I think I've read over a hundred pages now including August 14-18 , 2011

this is driving me nuts - Who Won !?
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Old 2nd July 2012, 03:16 AM   #1504
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Originally Posted by hushpuppy View Post
I think I've read over a hundred pages now including August 14-18 , 2011

this is driving me nuts - Who Won !?

You missed it? That means you have to go back and read from the beginning again.
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Old 20th July 2012, 02:00 PM   #1505
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Latest brainstorm.

Click the image to open in full size.
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Old 20th July 2012, 10:25 PM   #1506
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Yummy. Only one more cheap tube
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Old 27th July 2012, 02:54 AM   #1507
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Default No tube regulation?

In the several schematics posted in this thread, I haven't seen any with tube regulation.
I understand that this may be due to the $99 buck price point.
But, I was wondering if it would even be noticable, as at 3 - 5 watts, you wouldn't get any B+ sag type distortion.

Thanks,
Paul
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Old 27th July 2012, 11:28 PM   #1508
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Quote:
I haven't seen any with tube regulation.
Regulation, or rectification?

Voltage regulators designed to provide a stiff regulated supply voltage are seldom used in guitar amps. First, a regulator wastes voltage, and voltage is power, and power SELLS. Second, a guitar amp running on a regulated power supply has a hard "edge". This is useful in some genres, but not a big seller.

There are speciallized voltage regulators that originated in the DIY world and have now found their way into some mainstream amps. These alow dialing back the power supply to allow distortion at less than stadium filling volume.

I have been experimenting with something I call the Sagulator that is like a reverse voltage regulator. It samples the output tubes cathode current to reduce the B+ voltage.

Tube rectification got cut from most of the amps here because of cost. At least that was the case in my amps. I did experiment with a tube rectifier in AMP 2.X. It got cut early on. It cost too much power.

Quote:
I was wondering if it would even be noticable, as at 3 - 5 watts, you wouldn't get any B+ sag type distortion.
It is possible to get significant sag in a small watt amp. Many small watt amps are class A SE designs. It has been said that sag doesn't exist in a class A amp. In theory this is true, but many Fender Champ players will state otherwize. Why? It's because that amp left class A as soon as you plugged in the stomp box and dimed the volume control. Given a little wimpy power transformer, small power supply caps and OPT with 400 ohms of DCR, the plate voltage drops nearly 50 volts when you hit it hard.

I get some sag in a little amp with an SS supply by using a voltage doubler with smallish caps and a cheap Chinese power transformer.

I am working on a little guy that runs off of a battery and gets its B+ from an unregulated booster. I have too much sag in that one.
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Old 28th July 2012, 02:50 AM   #1509
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Yes, sorry, I meant rectifier.
Thanks,
paul
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Old 28th July 2012, 03:06 AM   #1510
ChrisA is offline ChrisA  United States
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Quote:
Originally Posted by pforeman View Post
In the several schematics posted in this thread, I haven't seen any with tube regulation.
I understand that this may be due to the $99 buck price point.
But, I was wondering if it would even be noticable, as at 3 - 5 watts, you wouldn't get any B+ sag type distortion.

Thanks,
Paul
I assume you meant "tube rectifiers". Yes they add cost. You can get the same effect by placing resisters in series with each solid state diode. The word "sag" is simply a word that means "high impedance power supply". A series resister will create that.
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