ear 834p output resistance

FTSIKIS · 7th May 2007, 09:40 AM

I have an ear 834p phono with volume control,used.
BUT THE RESISTANCE R10 IN OUTPUT STAGE (OUTPUT LOAD) IS ONLY 28K INSTAED OF 220 K.
Its ok or put one 220 k????

euro21 · 7th May 2007, 11:55 PM

834P with volume control:

50k Log ALPS potmeter, parallel 68k resistor.

-----I
P
P -----I------
P R
-----I------I------

Salas · 8th May 2007, 08:35 PM

I think I read R10 220k on the schematic. But its blurry anyway.

kstagger · 9th May 2007, 02:36 PM

I'm not sure if I would want a 'x7 cathode follower driving a 28k (and less when in parallel with the input of the next device). Stick with the 220k.

euro21 · 10th May 2007, 09:09 AM

Stereophile: EAR834P

"The output impedance measured 524 ohms in the left channel, 538 ohms in the right."

euro21 · 10th May 2007, 09:26 AM

834P clone (german language):

http://www.jogis-roehrenbude.de/Lese...l-Phonoamp.htm

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7th May 2007, 11:55 PM	#2
euro21 diyAudio Member Join Date: Sep 2004 Location: Budapest	834P with volume control: 50k Log ALPS potmeter, parallel 68k resistor. -----I P P -----I------ P R -----I------I------

8th May 2007, 08:35 PM	#3
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	I think I read R10 220k on the schematic. But its blurry anyway.

9th May 2007, 02:36 PM	#4
kstagger diyAudio Member Join Date: Dec 2003 Location: Grand Rapids	I'm not sure if I would want a 'x7 cathode follower driving a 28k (and less when in parallel with the input of the next device). Stick with the 220k.

10th May 2007, 09:09 AM	#5
euro21 diyAudio Member Join Date: Sep 2004 Location: Budapest	Stereophile: EAR834P "The output impedance measured 524 ohms in the left channel, 538 ohms in the right."

10th May 2007, 09:26 AM	#6
euro21 diyAudio Member Join Date: Sep 2004 Location: Budapest	834P clone (german language): http://www.jogis-roehrenbude.de/Lese...l-Phonoamp.htm