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Hmm... [message #9194 is a reply to message #9193]

Wed, 07 September 2005 23:46

Damir
Messages: 1005
Registered: May 2009

Illuminati (2nd Degree)

Are you sure that your resistors values are correct, and your measurements, too?
In this last case, (20 Ohms for 4 tubes), you have large drop of Ug2 and Ua, and your Ia+g2=1,1/20=55mA, or 13,75mA per tube- something isn`t quite right. I suppose that you doing it right - disconect all the cathodes (pin 8), solder them together and ground it through 20 Ohms resistor. Pin 1 (g3) of each EL34 is connected to pin 8, right?

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[Message index]

		Fisher 500C-how hot is too hot? By: hurdy_gurdyman on Sun, 04 September 2005 07:22
		Re: Fisher 500C-how hot is too hot? By: Damir on Sun, 04 September 2005 17:59
		Re: Fisher 500C-how hot is too hot? By: hurdy_gurdyman on Sun, 04 September 2005 21:52
		Re: Fisher 500C-how hot is too hot? By: Damir on Mon, 05 September 2005 05:43
		Re: Fisher 500C-how hot is too hot? By: hurdy_gurdyman on Mon, 05 September 2005 09:45
		Re: Fisher 500C-how hot is too hot? By: Damir on Mon, 05 September 2005 11:32
		Re: Fisher 500C-how hot is too hot? By: metasonix on Mon, 05 September 2005 13:07
		Re: Fisher 500C-how hot is too hot? By: hurdy_gurdyman on Mon, 05 September 2005 15:32
		Re: Fisher 500C-how hot is too hot? By: hurdy_gurdyman on Tue, 06 September 2005 21:03
		oops By: hurdy_gurdyman on Tue, 06 September 2005 22:01
		Re: oops By: Russellc on Wed, 07 September 2005 11:23
		New day, more tinkering, new results By: hurdy_gurdyman on Wed, 07 September 2005 12:47
		Re: New day, more tinkering, new results By: Damir on Wed, 07 September 2005 13:23
		Re: New day, more tinkering, new results By: hurdy_gurdyman on Wed, 07 September 2005 14:42
		Hmm... By: Damir on Wed, 07 September 2005 23:46
		Re: Hmm... By: hurdy_gurdyman on Thu, 08 September 2005 07:20
		actually... By: hurdy_gurdyman on Thu, 08 September 2005 07:38
		Re: actually... By: hurdy_gurdyman on Thu, 08 September 2005 09:14
		that's power iron hot... By: Thrint on Mon, 05 September 2005 08:47
		Re: that's power iron hot... By: hurdy_gurdyman on Mon, 05 September 2005 09:38

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