AudioRoundTable.com: Thermionic Emissions » Fisher 500C-how hot is too hot?

Home » Audio » Thermionic Emissions » Fisher 500C-how hot is too hot?

Show: Today's Messages :: Navigator :: Polls
E-mail to friend

New day, more tinkering, new results [message #9191 is a reply to message #9184]

Wed, 07 September 2005 12:47

hurdy_gurdyman
Messages: 416
Registered: May 2009

Illuminati (1st Degree)

Not tired anymore (much) and started playing with cathode resistors. I have a single 5000 ohm wirewound resistor hooking all the cathodes together, bypassed by a 1000 uF cap, and get these results:

Plate= 440
Screen= 340
Grid= -25.5
Cathode= 15

What voltage should I be shooting for on the cathode resistor seeing as I've reached the maximum the bias power supply can put out?

Dave

Report message to a moderator

[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

Previous Topic:	One output transformer hotter than the other
Next Topic:	DRD 45's in gear.

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Nov 28 23:48:57 CST 2024