|
|
Post by saltyseadog on Jan 29, 2020 6:11:30 GMT -5
Although I finished this project around 9mths ago as this is a "new" forum I thought I would repost it here as well. I had always had a yen for a tweed amp but being a play at home retiree I could never justify the expense so at the start of last year I decided to take my 1997 green board BJr' and build it a new house instead. After a lot of research and some probably stupid questions I decided on a Bassman/Bandmaster style cab. As I already had a 4ohm 8" Eminence Patriot 820H left over from another amp I bought a second one which I wired in series giving me 8ohm. Together with the original Eminence special design 12" 8ohm wired with a separate jack I would swap between the 2 x 8" or 1 x 12" options keeping everything at 8ohms. Just took my time doing an hour or three daily so it has taken me around a couple of months but I finally got it finished yesterday. I am pretty chuffed with the outcome and add some photo's for the perusal of those interested. Since then I found that I could get an upgraded power transformer with 4, 8 and 16 ohm options which would allow me to play all three speakers at once but the guy who I sent my amps to for the dangerous electronic stuff died and I haven't found a trusted replacement for so I just play it with either the 2 x 8" or the 1 x 12" seperately for the moment although truth be told I really prefer the 2 x 8" Patriot 820H which to my ears give it a decent tweed sound.
|
|
|
|
Post by Leftee on Jan 29, 2020 9:31:25 GMT -5
Very nice!
That little eminence is probably my favorite 8” speaker. I could see it working well in that setup.
|
|
|
|
Post by Peegoo 🏁 on Jan 30, 2020 15:05:26 GMT -5
Nice work! You nailed the narrow-panel cab look. It's a Blues *Senior*. One of the quick ways you can tell if a vintage tweed Fender was re-covered is the orientation of the stripes: in the 50s the stripes always ran from the 10 o'clock to the 4 o'clock positions no matter which way you looked at the amp. So that's not a real-deal BJr from the 50s  |
|
|
|
Post by saltyseadog on Jan 30, 2020 16:21:57 GMT -5
Nice work! You nailed the narrow-panel cab look. It's a Blues *Senior*. One of the quick ways you can tell if a vintage tweed Fender was re-covered is the orientation of the stripes: in the 50s the stripes always ran from the 10 o'clock to the 4 o'clock positions no matter which way you looked at the amp. So that's not a real-deal BJr from the 50s I knew that but when I cut the cloth and laid it down I preferred the herring bone pattern so went with that instead. |
|
|
|
Post by Peegoo 🏁 on Jan 30, 2020 20:07:44 GMT -5
It looks fine as it is!
There are several amp gurus that swear amps that have different-sized speakers sound better than if both speakers were identical. It gives the amp more sonic texture.
|
|
|
|
Post by Richard L on Feb 1, 2020 4:28:49 GMT -5
That looks very good, excellent woodwork - love the pink interior - and the tweed is very well done. Good work and a novel twist on a common amp.
|
|
twangmeister
Wholenote
Posts: 349
Formerly Known As: Twangmeister
Age: 72 and fading fast.....
|
Post by twangmeister on Feb 1, 2020 9:16:12 GMT -5
Nice looking amp!
|
|
|
|
Post by saltyseadog on Feb 2, 2020 4:13:08 GMT -5
That looks very good, excellent woodwork - love the pink interior - and the tweed is very well done. Good work and a novel twist on a common amp. The pink was a mistake actually. While researching this build I saw a video on You Tube where an amp tech completely stripped out a '59 Bassman which had no burns but a lot of smoke damage after being in a fire. When he got it down to the wood the inside was a light cherry red sort of colour. I have used clear varnish and paint powder before with good results to get a similar colour but my hand slipped when adding the varnish and I ended up with far too much and far too light so just have to hope it will darken over time.  |
|
|
|
Post by Leftee on Feb 2, 2020 7:05:19 GMT -5
Rock the pink, brother.
|
|
|
|
Post by LM on Feb 3, 2020 18:37:51 GMT -5
Very nice! When's the open house party?
|
|
|
|
Post by saltyseadog on Feb 4, 2020 12:28:50 GMT -5
Anytime you visit the north east of England you're welcome.  |
|
|
|
Post by LM on Feb 4, 2020 15:09:48 GMT -5
I've been to Portsmouth and London.
|
|
|
|
Post by LTB on Feb 20, 2020 6:38:04 GMT -5
Now that is cool! Nice job....
|
|
swampyankee
Wholenote
Fakin' it 'til I'm makin' it since 1956
Posts: 713
|
Post by swampyankee on Feb 26, 2020 11:28:42 GMT -5
Pretty cool!
I've always liked the 3 speaker layout, a la Tweed Bandmaster. I was thinking of re-cabbing a Blues Deluxe with 3-10's. I'd like the reverb, but have no use for the drive channel or effects loop.
|
|
|
|
Post by saltyseadog on Feb 27, 2020 4:59:23 GMT -5
Rather than start a new thread I thought I should reopen this one. I found out that I could get an upgraded output transformer made by Hammond the 1760F in the link www.hammfg.com/files/parts/pdf/1760F.pdf for my bluesjunior which will give me 4/8/16ohm options. The primary side of the transformer is pretty straightforward and on the secondary side it looks like I should connect the black common to the same point on the amp it is attached to now and the 4ohm yellow to the point on the amp where the present 8ohm green cable is connected. By then joining the 2 x 8" 4ohm speakers wired in series at 8ohm and the original 1 x 12" also 8ohm onto a single 1/4" jack into the amps output jack this would give me a total impedence of 4ohms and be an acceptable solution or am I wrong?. If correct then should I just dead end the remaining green 8 and white 16 ohm wires and tuck them safely out of the way?. |
|
