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5687 heater voltage - what's too high [message #30725]

Sat, 26 February 2005 12:01

colinhester
Messages: 1349
Registered: May 2009
Location: NE Arkansas

Illuminati (3rd Degree)

Got the 5687 heater fired up last night. Man, that sure is a pretty sight. I'm using the RCRC filter (2 ohm and 1 ohm in lieu of 5 and 3, respectively - see link below) I measured the voltage and got 13.4VDC. This is supposed to run at 12.6 VDC. Do I need to pad the voltage back, or is this really that critical? I am within 10%. I know this will somewhat shorten tube life due to more heat being generated, but other than that are there any issues I can expect (ie., noise / hum.)

Guinevere should be singing tonight!!!!!!!Colin

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[Message index]

		5687 heater voltage - what's too high By: colinhester on Sat, 26 February 2005 12:01
		Re: 5687 heater voltage - what's too high By: Forty2wo on Sat, 26 February 2005 12:37
		Measuring current By: colinhester on Sat, 26 February 2005 12:43
		heater Voltage By: PakProtector on Sat, 26 February 2005 12:57
		2 and 2 it is By: colinhester on Sat, 26 February 2005 13:05
		Re: 2 and 2 it is By: PakProtector on Sat, 26 February 2005 13:13
		Re: 2 and 2 it is By: colinhester on Sat, 26 February 2005 13:23
		Re: 5687 heater voltage - what's too high By: Wayne Parham on Sat, 26 February 2005 15:00

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