HI-Fi 6p13p

tigrine · 26th April 2007, 02:47 AM

First of all, I know that my English is not very good.
I bought on Ebay the following amplifier.
However, after having connected the amplifier, I noted that the power transformer did not function. All the tubes function, no sound. The power transformer become very hot and a bad odor releases from the transfo. I write on several occasions to the company no answer.
If somebody could give me information on the transformer so that I can install some another, that would be very appreciated.

If someone have the same amp, i can help him to buy a pair of tube of replacement.

Tigrine

cotdt · 26th April 2007, 03:31 AM

that does not look like a 6P13P tube to me...

mach1 · 26th April 2007, 03:47 AM

Tigrine,

I take it that when you say the tubes function, the filaments light. If so, the transformer primary and filament secondary(ies) are ok. It is possible that the HT secondary is also ok , and that the problem is further down the power supply chain.

If you feel comfortable measuring high voltages and faultfinding, I would start by measuring the AC (if there is any) on the HT secondary. If you do get a reading the transformer is ok , and you can then move on to see if there is any DC present after the rectifier and first smoothing capacitor. Keep moving in this direction until you find the fault.

If you do not feel competent to carry out this procedure, I strongly advise you to power down the unit immediately and take it to somebody suitably qualified.

pm

tigrine · 26th April 2007, 10:05 PM

I take it to somebody suitably qualified. The transformer primary is OK.
the filament secondary is Ok. The HT doesn't work.

I had hoped that somebody who has the same amplifier can check measurements of his power transformer.

b139b · 4th February 2008, 08:22 PM

Hello tigrine!

Have you fixed your amplifier? I hope so!
What was wrong?

I would like to buy one HiFi 6P13P class A amp too, but i can find anything regarding the 6P13 tubes.
Noone sells them and no equivalent found.

Is it risky to buy that amp?

leadbelly · 4th February 2008, 08:25 PM

Quote:

Originally posted by b139b
I would like to buy one HiFi 6P13P class A amp too, but i can find anything regarding the 6P13 tubes.
Noone sells them and no equivalent found.

Did you try eBay? I just punched in 6P13P and both that amp plus tubes came up. Here is the datasheet for the tubes:
http://frank.pocnet.net/sheets/095/6/6P13P.pdf

tigrine · 5th February 2008, 12:53 AM

I didn't fixe the problem on my amplifier
I decided to keep it to use the pieces.
What was wrong?
I think, the amp has a short in the circuit and for this reason it blow up the power transformer.
Is it risky to buy that amp?
I think, I'm the only bad lucky one.
A lot of people buy this amp whitout problem.

If you buy this amp, I have few 6p13p tubes to sale.

astouffer · 5th February 2008, 02:16 AM

What were you expecting for a made in china amp that costs $198? The transformers alone should cost that much.

tigrine · 5th February 2008, 02:37 AM

I'm not a dummies. When you buy a china amp like this one, you take a chance. In my case, I took a chance just for a few dollars.

b139b · 5th February 2008, 07:04 AM

Sorry for your amp, but a Powertransformer should be no problem to replace. Maybe it was to small? Dont give up !

When i found out that 6P13P = 6P13S i found a lot of tubes.

Thank you all.

Have seen this many times EL34-A or B , 6N1P or S
Same tube, but what does the last letter means?

26th April 2007, 03:47 AM	#3
mach1 diyAudio Member Join Date: Sep 2004 Location: Brisvegas	Tigrine, I take it that when you say the tubes function, the filaments light. If so, the transformer primary and filament secondary(ies) are ok. It is possible that the HT secondary is also ok , and that the problem is further down the power supply chain. If you feel comfortable measuring high voltages and faultfinding, I would start by measuring the AC (if there is any) on the HT secondary. If you do get a reading the transformer is ok , and you can then move on to see if there is any DC present after the rectifier and first smoothing capacitor. Keep moving in this direction until you find the fault. If you do not feel competent to carry out this procedure, I strongly advise you to power down the unit immediately and take it to somebody suitably qualified. pm __________________ Au rutti wop-bop-a-loom-bop-a-boom-bam-boom - Richard Penniman

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26th April 2007, 03:31 AM	#2
cotdt diyAudio Member Join Date: Oct 2005	that does not look like a 6P13P tube to me...

26th April 2007, 10:05 PM	#4
tigrine diyAudio Member Join Date: Oct 2006	I take it to somebody suitably qualified. The transformer primary is OK. the filament secondary is Ok. The HT doesn't work. I had hoped that somebody who has the same amplifier can check measurements of his power transformer.

4th February 2008, 08:22 PM	#5
b139b diyAudio Member Join Date: Dec 2007	Hello tigrine! Have you fixed your amplifier? I hope so! What was wrong? I would like to buy one HiFi 6P13P class A amp too, but i can find anything regarding the 6P13 tubes. Noone sells them and no equivalent found. Is it risky to buy that amp?

5th February 2008, 12:53 AM	#7
tigrine diyAudio Member Join Date: Oct 2006	I didn't fixe the problem on my amplifier I decided to keep it to use the pieces. What was wrong? I think, the amp has a short in the circuit and for this reason it blow up the power transformer. Is it risky to buy that amp? I think, I'm the only bad lucky one. A lot of people buy this amp whitout problem. If you buy this amp, I have few 6p13p tubes to sale.

5th February 2008, 02:16 AM	#8
astouffer diyAudio Member Join Date: Jun 2004 Location: Pittsburgh, crumbling wasteland	What were you expecting for a made in china amp that costs $198? The transformers alone should cost that much.

5th February 2008, 02:37 AM	#9
tigrine diyAudio Member Join Date: Oct 2006	I'm not a dummies. When you buy a china amp like this one, you take a chance. In my case, I took a chance just for a few dollars.

5th February 2008, 07:04 AM	#10
b139b diyAudio Member Join Date: Dec 2007	Sorry for your amp, but a Powertransformer should be no problem to replace. Maybe it was to small? Dont give up ! When i found out that 6P13P = 6P13S i found a lot of tubes. Thank you all. Have seen this many times EL34-A or B , 6N1P or S Same tube, but what does the last letter means?

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