50w non-HRM low plate finish!

[grtamp]

Hi ,in this Christmas Holyday I finished a new amp , I built this amp for a friend, I used Mercury Magnetics PT and OT (Fender bassman trafos) the circuit I used is the # 124 with skyliner tonestack and precision power supply.
Here my setting and voltage.

bright cap 200pF
Mid-cap (DEEP) 330pF
grid res 3k3 (power tubes)
NFB 8K2/1K tail
250K OD trim setting to 47k to ground
Drop resistor :
2k7 22k 2k2

V1= 287V
190 1,42
190 1,43

V2= 295V
194 1,50
195 1,52

V3= 433V pin 1 e 6 =286/287 pin 3/8= 59,5
V4/5 pin 3= 459V pin 4= 459V pin 5= -48V
Bias voltage = -47V
33,9 / 34,5 mA

Fet 150K/13K node=14V ,
drain volt.= 6,5V.
bias fet setting to 2,25v with 3K res.

Really nice sound and fun play throught this amp!!

[telentubes]

Any Pics?

[grtamp]

Sorry!

I have to build the cabinet now!

[M Fowler]

Very neat and tidy wiring. Was that a blank chassis you drilled out?

Mark

[ic-racer]

6L6 or EL34?

Can I ask about the resistors in your Bias circuit?

Looks good!

[telentubes]

Looks great!

[amplifiednation]

Great job! What chassis did you use?

[grtamp]

The chassis was built by a local factory , I drilled the chassis alone!

my bias resistor is 1,2K/1n4007 and 15k to ground , 10K pot.

I run with a pair of 6L6Gc JJ power tubes