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Amp Casulity

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Zoot Horn

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SILVER-7 TUBE AMP

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Post Sun Sep 25, 2011 10:32 am

Amp Casulity

Well, I suppose I'm the first casulity--plugged the amp in yesterday,,played fine,,again last night,,,this morning,,nothing,,no tube glow--checked fuse,changed power tubes,,changed power cord-changed outlets,, I'm gonna check the input tubes,,but somehow I suspect it's the power supply.Any thoughts before I go poking around with a VM.And yes,,this was blessed by Bob at the fest.Any help appreciated.
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engtaz

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"TAZ"

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Post Sun Sep 25, 2011 10:38 am

Re: Amp Casulity

if amp got moved maybe components are touching or ping pushed in tube socket shorting something.
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use
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BillD

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Post Sun Sep 25, 2011 10:40 am

Re: Amp Casulity

With no tube glow, start in the Power Supply ahead of the heater circuit.
It should sound like it isn't there!
There is a difference between hearing and listening...
Making life enjoyable through expensive electronics.
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Sunfire:Theater Grand III processor, Ultimate Receiver, Cinema Grand Signature 400 ~ seven, True Subwoofer Mk. II, D-10 Subwoofer
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Zoot Horn

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Post Sun Sep 25, 2011 10:41 am

Re: Amp Casulity

Roy,, I'll take a peek,,tubes test well,,I did not move the amp--guess I'll start troublshooting.
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kingman

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Post Sun Sep 25, 2011 10:50 am

Re: Amp Casulity

Sorry to hear George,,,good luck.
In reality, it only matters what it sounds like to YOU!!!
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Zoot Horn

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Post Sun Sep 25, 2011 10:53 am

Re: Amp Casulity

found it-- IEC fuse-- can anyone look at theirs and tell me the value,--looks like a 250 ??AMP
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Mr. M-500t

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Post Sun Sep 25, 2011 11:05 am

Re: Amp Casulity

I wonder why it blew so soon ? I'd still take a good look around and make sure nothing is shorting out !
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Don

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Post Sun Sep 25, 2011 11:09 am

Re: Amp Casulity

Seems like Roy had that problem also at the fest. He thought it may be because he did not have an on/off switch installed yet.

Anyway, glad you found the problem George.
To argue with a person who has renounced the use of reason is like administering medicine to the dead.
— Thomas Paine

"Try not to become a man of success, but rather a man of value" Albert Einstein

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RIP Bill D.
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Zoot Horn

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Post Sun Sep 25, 2011 11:12 am

Re: Amp Casulity

Don,, an on/off switch is being installed as we speak-- I was lazy and just used the power (IEC) connection.I've checked all of the solder joints and wiring,and I feel sure that it was me removing/replacing the cord for on/off.Can they make the writing any smaller on the fuse. ](*,)
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AlexSauter

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Post Sun Sep 25, 2011 11:22 am

Re: Amp Casulity

Zoot Horn wrote:Don,, an on/off switch is being installed as we speak-- I was lazy and just used the power (IEC) connection.I've checked all of the solder joints and wiring,and I feel sure that it was me removing/replacing the cord for on/off.Can they make the writing any smaller on the fuse. ](*,)



Roy did have this same problem on his amp, he thought it was due to the AC current arcing across the terminals as you pulled the cord out or pushed it in.
RIP BillD
BillD wrote:Well, some people are glass half empty people and some are glass half full. Being an engineer, I just think the glass is the wrong size.


My system (sitting in the garage):

(Stereo System)
Modified Carver AL III+'s (Pushed into the corners to make room for the ALS speakers)
Modified CarverFest 2011 20w tube amplifier
Carver Pro PT-1800
Sunfire Prototype TGA-2375
Carver TX-2 Tuner (not used)
Logitech Squeezebox (replaced Tuner & dad's CD player)
CARVERaudio Directional RCA interconnects
RCA-Headphone jack for iPod & iPhone
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Zoot Horn

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SILVER-7 TUBE AMP

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Joined: Thu Nov 15, 2007 7:26 pm

Location: 4th Tower of Inverness

Post Sun Sep 25, 2011 11:27 am

Re: Amp Casulity

Fuse rating please sir? Looks like it says F2 Al 250volt--I'm assuming it's a 2 am 250 volt fast or slow?
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AlexSauter

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Post Sun Sep 25, 2011 11:29 am

Re: Amp Casulity

The fuse is 2A 250V fast blow
RIP BillD
BillD wrote:Well, some people are glass half empty people and some are glass half full. Being an engineer, I just think the glass is the wrong size.


My system (sitting in the garage):

(Stereo System)
Modified Carver AL III+'s (Pushed into the corners to make room for the ALS speakers)
Modified CarverFest 2011 20w tube amplifier
Carver Pro PT-1800
Sunfire Prototype TGA-2375
Carver TX-2 Tuner (not used)
Logitech Squeezebox (replaced Tuner & dad's CD player)
CARVERaudio Directional RCA interconnects
RCA-Headphone jack for iPod & iPhone
<<

Zoot Horn

User avatar

SILVER-7 TUBE AMP

Posts: 3026

Joined: Thu Nov 15, 2007 7:26 pm

Location: 4th Tower of Inverness

Post Sun Sep 25, 2011 11:29 am

Re: Amp Casulity

Thank you sir !!!
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engtaz

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"TAZ"

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Location: Tampa, FL

Post Sun Sep 25, 2011 12:16 pm

Re: Amp Casulity

Sorry I did not mention it before. Get spare fuses till switch is installed.
engtaz


Carver M4.0T in front channels to Caver AL VI's in SACD & 2 Channel setup
C 16, PT 2400, Slim Device, Carver TX-8, 490T and Rega TT w Grado Gold cart in the 2 channel setup
Bogen SRB20 is computer amp
Carver PM-350 donated for youth church use
<<

Zoot Horn

User avatar

SILVER-7 TUBE AMP

Posts: 3026

Joined: Thu Nov 15, 2007 7:26 pm

Location: 4th Tower of Inverness

Post Sat Oct 01, 2011 10:12 am

Re: Amp Casulity

fuses,tubes,,all swapped-- certifiably DEAD now--
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