The Amp Garage

Don`t buy a B Hefner neck whatever you do . fret job was lousy and very pricey , added $100+ micro crap or something bend a note over the 12th fret and it dies before a half step . Neck is bowed and no amount of truss rod adjustment helps . In short - a piece of POO.

Cam

I love the Dava control , very versatile . Anyone ever use Merten picks . Used them 30 years ago and loved them . I can`t find them anymore .
Anyone ever heard of these ?

A Very Merry Chrismas to all from the Great White North .

Cam

You could try something with 6AQ5`s

Cam

I have just completed a 4 x 6AQ5 liverpool and the results were excellent . I used a different P.S. at only about 300vdc B+ and utilized a Hammond 1760J(4000CT) fender replacement OT rated 35W . from my crude calculations I determine it is putting out between 20 and 25 watts .

Cam

:oops: You should have heard the squeel at about 3 - 4 , oh my , the dogs were goin` nuts around here . Apparently , I had used a speaker cord (no Shield ) to plug in the LP and check her out . I spent about an hour poking around with a broken drum stick before I checked the cord . duhh . Sounds exc...

My 2 cents , I tried a 22uF/2nd stage in my Rocket and it broke up way too early for my taste . took it out

I guess there is no need to ground the center tap on the 5vac , otherwise it makes the Rectifier tube make big arc across plates (ouch) . Stupid newbie mistake . aarrrgghhh!!!

Plus one, the 5AR4 has a max first filter value of 60uf. That may or may not cause issues since you are only over spec a bit. Did not get enough time to check unloaded DC voltage on the first cap . A.C. to the 5Ar4 is 560vac or 280vac a side . Maybe I am over the Mallory spec of 450vdc.?? and the ca...

Posted: Tue Apr 07, 2009 10:01 am Post subject: -------------------------------------------------------------------------------- Since it fires up with no tubes installed then you might want to try a different set of tubes. 20 seconds is about the time it takes for output tubes to come up to temp an...

:shock: 5AR4 outa my other Rocket does the same thing in this amp . about twenty seconds or so after power up , tube arcs and takes out the fuse .Even before the standby switch is turned on . I used an 80uF Mallory TC-80 in the first tank . The other Rocket Has 2 - 40uF in this spot . Could I have a...

Hey thanks guys :) , I`ll try the one out of my first Rocket(Ellen Rachel) . That one is a JJ as well . Both bought from a local guy , maybe he`ll give me another one . Did not think a wiring issue would do that , and the PT voltages measured were within a few volts of the other Rocket . I think a 5...

Fired up my 2 hole rocket with no tubes and checked out voltages @ 122.5vac into a Hammond 370FX 275/0/275 150mA. - heater voltage 7vac Rectifier 5vac was 5.4vac - primary was 280vac to grnd. on both taps .after installing my start up tubes and powering it back up , 20 -30 seconds later it takes out...

#5 Yes, put the solder lug there, I also put my bleeder resistors there coming off the pin on the recto that goes to the cap stack. :D Are these poly caps "Panasonic" . I used them in my Rocket and think they sound great . Any one else compared these and the "Orange drops" for a taste test ?? 8) Cam

I think the front end is the same as an Express , but the power section is cathode bias like a Liverpool . I have built a Rocket , but not an Express so I am not sure if the main boards are the same . I modified the LiverPool dwg. for this build . Cabinet is Pine (Alberta has lots of it) and the fac...