New Crack voltage problems [solved]

[iwuk78]

Hi,

I got my build finished but seem to have some problems. Here are my resistances/voltages:

Resistances
                                Actual
1         *         *
2         *         *
3         0         0
4         *         *
5         *         *
6         2.4k         2.488k
7         2.9k         2.940k
8         0         000.4 ohms
9         2.9k         2.934k
10         2.4k         2.485k
12         0         000.5 ohms
13         *         33m falling
14         0         000.4 ohms
20         0         000.3 ohms
22         0         000.3 ohms
b3         2.9k         2.940k
b6         2.9k         2.934k
rca l gr 0         000.4 ohms
rca r gr 0         000.5 ohms
rca l cp 90-100k 104.9k
rca r cp 90-100k 101.3k

Voltages
                                Actual
1         75-90 83.2
2         170         170.8
3         0         0
4         170         170.8
5         75-90 86.7
6         0         fluctuates between 0 – 10 mv
7         100         106.6
8         0         0
9         100         108.8
10         0         fluctuates between 0 – 10 mv
11         0         0
12         0         0
13         170         170.5
14         0         0
15         185         192.2
20         0         0
21         206         213.9
A1         90         86.3
A2         0         0
A4         0         0
A5         0         0
A6         90         82.7
A7         0         0
A9         0         4mv
B1         90         82.6
B2         170         170.9
B3         100         106.6
B4         90         86.1
B5         170         170.8
B6         100         108.4
B7         0         3.8mv
B8         0         0

Resistances seemed ok (not 100% sure about 13), but voltages don't seem quite right. I did plug in a crappy pair of cans and seem to get sound fine in one ear, but *almost* none in the other. Both tubes are glowing, and both leds are lit.

I have tried reflowing anything that looked suspect, but no change. If anyone can point me in the right direction, it'd be much appreciated!

Thanks!

 

[Paul Birkeland]

Your voltages are about as perfect as they could get.  Remember, these are +/- 15% based on tube variations.

Which channel isn't coming through?

Generally, this is a bad solder joint on one of the wires heading to the headphone jack (usually the red or white wire), or with the braided set of the 3 wires heading up to to the volume pot.

 

[iwuk78]

Thanks for the speedy reply!
They all looked OK, but I reflowed all the lines to the pot and bam, all good.

Thanks much