The Amp Garage

ok !
for sure with the right fuse that help... !

I clean the tube sucket, lime it, and take out the dust and it work.

Only thing thing , is the clean chnnel that lose power when play a full cord... i gonna recheck the soldering and check the Cap preamp

Hi,
I replace all Tube for Brand new one (JJ's E34L)
and the fuse still blow out .

I gonna test without all PW tube and preamp tube.

Come back soon after the test

Thanks All !

Hi thanks for the infos !
Nop i didn't fid the schematic of the RD100

Hi !

I got a randall RD100 to repair and the 6.3v fuse blow all try i give...
one 6.3 v give me nothing and the other one give me 6.1.. 6.2......
Power transo might short or blow ?

Thanks

Hi !
I modify the back pannle bu adding 2 brich wood pieces
not test for now , but it might helpfor the FK ripple

The Bassman tell me that the problem is really the back panel ripple...
renforcement of back pannel and a small port , together may be the solution.

Side brace may work too

Hi I built a Bass cab and the back rattle, The Amp is a 5F8-A with 4 x 6550 bias at 70% The Speaker is a Eminance Beta 15A 300W http://www.eminence.com/pdf/Beta_15A.pdf dimension of the cab. 27'' x 27'' X 10 1/4'' Contour made with Pine 3/4'' and front and back made with Russian plywood 3/4'' Should...

Hi Ian
nop, not the original layout.
The one that gose to the volume pot have been change to a 0.05 and the treble to a 0.05.
Gonna bring it back to 0.022 for sure.
That was a good suggestion on paper , but not in practice... !

Hi,
yes it's firm , but a hole in Mid between 125hz and 500hz

any idea ?

Thanks

Thanks All Fou You help !

The Amp Work Like A Charm !

Regards

Dave

Hey , Thanks !
Her's how i do it and it work like a charm.

Oufffff !

Thanks a Lot !

Hi,
I built a 5F8-A with mercury Magnetic PT
After an hour of playing, the Pt kind of hot.
I can put my hand on it without burn
The 2 primary wire are black,
Swiching it may solve the issue or it's normal for a 100W ?
it's my first 100W build

Thanks !

Dave

Hi ! I built a 5F6-A with only one input But i put the input and build board from left to right ( like a Trainwreck) instead of right to left...according to layout. Do I have to invert the Wire on pot ? Exmp, Pin 1 to pot gonna go on pin 3, middle stay the same ??? I also switch the middle and Bass ...

Thanks Ian,

I gonna post the progression of the build as soon as I start.

Regards

Dave