Low voltages on my Bluesmaster.

[galtjunk]

Bluesmaster voltages

Precision PS
117v AC at the wall.
B+1 on Standby 442
B+1 431
B+2 429
6k8
b+3 371
15K
B+4 292
2K2
B+5 283

V1 1 177
V1 3 1.6
V1 6 172
V1 8 1.6

V2 1 183
V2 3 1.6
V2 6 178
V2 8 1.7

V3 1 223
V3 2 26
V3 3 39
V3 6 227
V3 7 25
V3 8 39

V4 3 430
V4 4 439
V4 5 48

What can I do to bring up v1,v2 and v3?

[Bob Reinhardt]

you can change the dropping resistors between each node , but with your wall only being 117, the voltages will be a tad low compared to the wall being 120, which is generally where voltage readings are for comparison.

[dogears]

Absolutely change the first dropping resistor to between 2.2K and 3K to taste.

[tubedogsmith]

Try some different preamp tubes first before you fire up the iron. You can get some pretty big voltage swings between different preamp tubes.

[galtjunk]

Well, I changed out the preamp tubes and I got an appreciable rise in voltage across all three tubes.
With 118 volts ac at the wall I'm now getting what I should at v1 and v2.
v1 1 189
v1 6 187
v2 1 198
v2 6 202

v3 still seems a little low although it did come up by over 20 volts to

v3 1 245
v3 6 247

Thanks

[ToneMerc]

For a BM, V3 looks fine.

[ToneMerc]

dup