|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
|
|
Vintage Asylum Classic gear from yesteryear; vintage audio standing the test of time. |
|
In Reply to: RE: Error on Scott LK72b schematic posted by jgradio on February 15, 2015 at 16:48:35:
It's kind of silly what they did..They have a shared 3.3 ohm resistor running from pin 5 to ground on each pair of 7591s..The best thing to do is install a 10 ohm resistor from pin 5 to ground on each of the 7591 tubes.This is four 10 ohm resistors total..You set the balance by putting your meter on DC volts and putting the plus and minus leads of the meter across pin 5 of the two 7591 tubes in each channel..Adjust the balance until you get 0 vdc between the two.. You then remove one of the leads to put it to ground and set the bias for .32 to .35vdc and you should be fine.Recheck the bias and touch up if necessary.A good warmup is a plus.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 02/15/15
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Error on Scott LK72b schematic - Michael Samra 20:08:03 02/15/15 (4)
- RE: Error on Scott LK72b schematic - jgradio 20:18:15 02/15/15 (3)
- RE: Error on Scott LK72b schematic - Uncle Mike 05:53:39 02/16/15 (1)
- RE: Error on Scott LK72b schematic - Uncle Mike 05:56:53 02/16/15 (0)
- RE: Error on Scott LK72b schematic - Michael Samra 22:10:59 02/15/15 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
