Output transformer ambiguity

That's a heck of a difference in DC resistance. If you drive both with a sig generator and look at the secondaries on a scope is there a big difference in the signal amplitude between the two? If not I would be inclined to replace the tube and take some voltages while the circuit is live while monitoring the plate currents. You can look here for operational voltages and currents in different classes of operation:

"Steve Sousa"

..... Phil

"Steve Sousa"

..... Phil

-------------------------------------------------------------------------------- Most of the world uses a comma as a decimal point. The US and Canada are about the only ones that use a period.

"Brenda Ann" "Phil Allison"

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..... Phil

Regarded as you most affluent reply :)

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..... Phil

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Countries where a comma is used to mark the radix point include:

Albania, Andorra, Argentina, Austria, Azerbaijan, Belarus, Belgium, Bolivia, Bosnia and Herzegovina, Brazil, Bulgaria, Cameroon, Canada (French-speaking), Costa Rica, Croatia (comma used officially, but both forms are in use elsewhere), Chile, Colombia, Cuba, Cyprus, Czech Republic, Denmark, Dominican Republic, Ecuador, El Salvador, Estonia, Faroes, Finland, France, Germany, Greece, Greenland, Guatemala, Honduras, Hungary, Indonesia, Iceland, Italy, Kazakhstan, Latvia, Lithuania, Luxembourg (uses both separators officially), Macedonia, Moldova, Netherlands, Norway, Nicaragua, Panama, Paraguay, Peru, Poland, Portugal, Romania, Russia, Serbia, Slovakia, South Africa (officially, but dot point is commonly used in business, even though South Africa used to be in the British Empire, which is considered to be strange by quite a few people in Britain), Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, Uruguay, Venezuela, Vietnam.

"Brenda Ann is another autistic f****it"

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Thank you for your post that proved the above point beyond any doubt.

..... Phil

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Did you collect country names at random? Netherlands uses the comma only in text, never to indicate fractions.

On 11/23/2010 6:35 PM Sjouke Burry spake thus:

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But we're not talking about fractions; we're talking about decimals.

Or are those terms equivalent in your country?

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Brenda, you're wasting your time trying to converse with Phil. He is a mentally ill character in Australia, who frequently stops taking his medication.

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Decimal is a type of fraction. That still does not explain the random selection of country's, unless one really likes to conduct a s***ty discussion.

Decimal is a type of fraction. That still does not explain the random selection of country's, unless one really likes to conduct a s***ty discussion.

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The list is not random, and is found on many sites regarding finance, etc. The site this particular list is from is:

On 11/23/2010 8:10 PM Sjouke Burry spake thus:

Technically, yes. But if you say (or write) "fraction", most English speakers expect something in the form x/y, not x.y or x,y.

In other words, decimals are special cases of fractions, with their own formatting.

in

one

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If the 4000 ohm one is shot then it should vary considerably with heating and knocking. Hot air gun and a mallet. What is the amp ? (sorry if included in the unread usual threaded diahrhoea)

If the 900 ohm one was shot then it implies some shorted turns that is unlikely to change with heat and/or vibration

Hello

Wouldn't it be possible to have an original 4000ohm shorted to 900ohm too?

Best Regards

Hello:

the amp is a grundig como e/st, you can see a picture and the schematic at

i haven't removed the transformers because they are soldered to the chassis! (the metal bracket is soldered to the chassis *and* the pcb)

hello:

there was about half division difference on the scope. I was trying to avoid testing with the valve because it's expensive and "rare" i don't want to take much risks....

chassis!

Do the 2 in one output valves mean the amp is compact size? I know an intermittent break in low impedance side of output Tx can lead to valve failure but does intermittant high imp side harm the drive valves? The Tx numbers matching on that schematic confirms they should be to within about 5 percent the same measurements