Help On My 845 Monos

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Help On My 845 Monos

Postby Bedroom Eyes » Sun Oct 28, 2007 5:53 pm

I have not been plugging my 845 monos for a week. This is so because on the other side of the pair the output tube 845 is not as bright as the other :( .

My hearing (impaired?) says the the other one is not as clear in sonic as the other. With this I did the following ;

1. Thinking that the other Valve is dying I tried replacing them with
my new pair of 845s. Looks like this is not the answer since it
still shows the same problem.
2. Tried the contact cleaner for interconnect & plug but still the
same :roll:
3. Tried adjusting the bias and still the same :?

Can you help me diagnose what is wrong with my amp :?:

Salamat po :?:
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Postby ambel » Sun Oct 28, 2007 6:01 pm

So it's not the tube. Looks like the 845 heaters is causing the problem just
my wild guess.
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Postby alexg » Sun Oct 28, 2007 6:05 pm

I agree with Ambel, can you measure the heater voltage?
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Postby dannyb » Sun Oct 28, 2007 6:07 pm

also try testing the rectifiers for the heaters if your tester has such a feature
hope this helps :D
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Postby Bedroom Eyes » Sun Oct 28, 2007 6:14 pm

Thanks guys 8)
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Postby ambel » Sun Oct 28, 2007 6:32 pm

WARNING: EXERCISE EXTREME CAUTION LETHAL VOLTAGE
If you not qualified don't do it!!!
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Postby Bedroom Eyes » Sun Oct 28, 2007 6:44 pm

ambel wrote:WARNING: EXERCISE EXTREME CAUTION LETHAL VOLTAGE
If you not qualified don't do it!!!


Thanks for the reminder. I will let someone look at this for me 8)
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Postby dannyb » Sun Oct 28, 2007 7:01 pm

ambel wrote:WARNING: EXERCISE EXTREME CAUTION LETHAL VOLTAGE
If you not qualified don't do it!!!

i agree HT lines for the 845 could reach 900VDC also make sure capacitors have discharged completely before using a test probe :)
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Postby JackD201 » Sun Oct 28, 2007 8:55 pm

Replace your 845 Monos with these :twisted: :lol: :lol: :lol: :lol:

The ML 2.1 is a true SET -the other 6c33c tube is not paralleled it is used for voltage regulation :shock:

Image
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Postby Bedroom Eyes » Sun Oct 28, 2007 8:56 pm

JackD201 wrote:Replace your 845 Monos with these :twisted: :lol: :lol: :lol: :lol:

The ML 2.1 is a true SET -the other 6c33c tube is not paralleled it is used for voltage regulation :shock:

Image


:evil: :evil: :evil: :evil:
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Postby JackD201 » Sun Oct 28, 2007 8:59 pm

Minsan minsan ka lang naman kita ma-sulsol :P Banat na para pareho na kayo ng reference ni Jonathan Valin! Patignan mo na kay Hyper yung 845 mo tapos benta mo kay Highlander :twisted:
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Postby m_shoe_maker » Sun Oct 28, 2007 9:16 pm

Bedroom Banat na ng ML2.1. 8)

Buy a pair of ML2.1s, and JackD will give you a pair of VR9s for free :!: :twisted:
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Postby JackD201 » Sun Oct 28, 2007 9:19 pm

m_shoe_maker wrote:Bedroom Banat na ng ML2.1. 8)

Buy a pair of ML2.1s, and JackD will give you a pair of VR9s for free :!: :twisted:


LSA1 w/ stands puwede :lol:
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Postby Bedroom Eyes » Sun Oct 28, 2007 10:20 pm

m_shoe_maker wrote:Bedroom Banat na ng ML2.1. 8)

Buy a pair of ML2.1s, and JackD will give you a pair of VR9s for free :!: :twisted:


:lol: :lol: :lol: problema pera :lol: :lol: :lol:
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Postby Bedroom Eyes » Sun Oct 28, 2007 10:21 pm

JackD201 wrote:Minsan minsan ka lang naman kita ma-sulsol :P Banat na para pareho na kayo ng reference ni Jonathan Valin! Patignan mo na kay Hyper yung 845 mo tapos benta mo kay Highlander :twisted:


Si Danny pwede yan pakita mo sa Dec 1 8) :P
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Postby m_shoe_maker » Sun Oct 28, 2007 10:24 pm

Bedroom Eyes wrote:
m_shoe_maker wrote:Bedroom Banat na ng ML2.1. 8)

Buy a pair of ML2.1s, and JackD will give you a pair of VR9s for free :!: :twisted:


:lol: :lol: :lol: problema pera :lol: :lol: :lol:


Bouncing check daw pwede :!: :twisted: :lol: :twisted: :lol:
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Postby DCO » Sun Oct 28, 2007 11:00 pm

Replace your 845 Monos with these

The ML 2.1 is a true SET -the other 6c33c tube is not paralleled it is used for voltage regulation



Buy na para sabay palit with the Victory!
:D :D
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Postby highlander » Mon Oct 29, 2007 2:02 am

JackD201 wrote:Minsan minsan ka lang naman kita ma-sulsol :P Banat na para pareho na kayo ng reference ni Jonathan Valin! Patignan mo na kay Hyper yung 845 mo tapos benta mo kay Highlander :twisted:


:?: :?: :?: :roll: :roll: :roll: :evil: :evil: :evil: :lol: :lol: :lol:
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Postby arnoldc » Mon Oct 29, 2007 7:55 am

Why is this in the technical archives? It's a basic Q and full of OT.

Let's not bring down the quality of the technical archives.
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