Express B+ voltages?

[PlinytheWelder]

Since the Schematic doesn't agree with the Builders Guide, what are the targets for B+1 thru 5?

Thanks!

[fishy]

Check the files section. You should find a compiled xls file with Express voltages in it

[da Geezer]

Check the files section. You should find a compiled xls file with Express voltages in it

Yep.....2nd post down on the linked thread>>>

https://tubeamparchive.com/viewtopic.php?t=5691

[PlinytheWelder]

OK, here's my voltages...

AC main 119.3

----------------Expected---------Actual

V1A plate 210 214
V1A cathode 1.9 1.7

V1B plate 182 192
V1B cathode 1.5 1.3

V2A plate 267 266
V2A cathode 2.8 2.6

V3A plate 190 201
V3A grid 28 23
V3A cathode 42 35

V3B plate 193 212
V3B grid 27 22
V3B cathode 42 35

V4 plate 415 398
V4 screen 397 379
V4 bias -33 -33.6

V5 plate 415 398
V5 screen 397 380
V5 bias -33 -33.3

All heaters 6.3 6.6

PT sec 585 590

B+1 420 400
B+2 405 385
B+3 317 311
B+4 298 295
B+5 283 281


Measured with my Fluke 27 and without the VVR3

Well, I guess it's pretty close, time to hook her up!

Comments?