On my 100W HRM 'Funk Build' (with BM PI values). Just completed construction and now tuning and tweaking. It sounds pretty friggin' good, but please let me know if you see anything that looks out of whack. I went through the amp and measured the following voltage levels:
AC line: 122VAC
B+1: 452
B+2: 451
B+3: 423
B+4: 335
B+5: 316
V1a Plate: 185 Cathode: 1.91
V1b Plate: 190 Cathode: 1.80
V2a Plate: 205 Cathode: 1.86
V2b Plate: 208 Cathode: 1.86
PI Upper Plate: 261 Lower Plate: 255
cathodes: 44, R junction 42
Bias: -49V; ~35mA on each 6L6GC
Cheers! Brian
Please check these voltage measurements..
Moderators: pompeiisneaks, Colossal
Please check these voltage measurements..
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
Re: Please check these voltage measurements..
That's in the same ball park as the BM I posted in the files section:odourboy wrote:On my 100W HRM 'Funk Build' (with BM PI values). Just completed construction and now tuning and tweaking. It sounds pretty friggin' good, but please let me know if you see anything that looks out of whack. I went through the amp and measured the following voltage levels:
AC line: 122VAC
B+1: 452
B+2: 451
B+3: 423
B+4: 335
B+5: 316
V1a Plate: 185 Cathode: 1.91
V1b Plate: 190 Cathode: 1.80
V2a Plate: 205 Cathode: 1.86
V2b Plate: 208 Cathode: 1.86
PI Upper Plate: 261 Lower Plate: 255
cathodes: 44, R junction 42
Bias: -49V; ~35mA on each 6L6GC
Cheers! Brian
V1a Plate 184 v1b 189 v2a 203 v2b 216 v3a 266 v3b 260 v3k 39
String 441 439 413 334 302
Former owner of Music Mechanix
www.RedPlateAmps.com
www.RedPlateAmps.com
Re: Please check these voltage measurements..
Same ballpark? Pretty dang close.
Excellent! Thanks for checking this heisthl. I presume you're happy with the results of your BM build?!
Excellent! Thanks for checking this heisthl. I presume you're happy with the results of your BM build?!
"Let's face it, the non HRMs are easier to play, there, I've said it." - Gil Ayan... AND HE"S IN GOOD COMPANY!
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html
Black chassis' availble: http://cepedals.com/Dumble-Style-Chassis.html