|
|
Post by levon on May 21, 2014 2:33:19 GMT -6
Can I have one, please, pretty please...
|
|
rjr
New Member
Posts: 14 
|
Post by rjr on Jul 25, 2014 19:53:29 GMT -6
Congrats on the build!
|
|
|
|
Post by unit7 on Jul 27, 2014 16:33:38 GMT -6
Thanks Dustin! I've checked out (never heard) and adimred your work a few times before, and now browsed thru your builds once again. WOW! You should have your own separate thread here and present a build every week.. |
|
|
|
Post by jimwilliams on Jul 28, 2014 9:34:15 GMT -6
Consider the high current mods for the 12BH7 output stage. It does improve output drive by upping current to around 23 ma.
Change R17 to 680 ohms, R18 and R20 to 330 ohms, R 19 to 1 meg and C5 to 22 or 47 uf to extend the low end.
|
|
|
|
Post by unit7 on Jul 28, 2014 9:47:13 GMT -6
Consider the high current mods for the 12BH7 output stage. It does improve output drive by upping current to around 23 ma. Change R17 to 680 ohms, R18 and R20 to 330 ohms, R 19 to 1 meg and C5 to 22 or 47 uf to extend the low end. Wow, thanks jimwilliams!! I'll def consider that. Except for the xformer replacement and perhaps other things, is this part of your ADL1000/1500 mods? BTW, love your status message!  |
|
|
|
Post by jimwilliams on Jul 29, 2014 14:10:58 GMT -6
That is part of it. I use Jensen's JT-11 input transformer and their special JT-10K61-1M output transformer, designed for the LA-2 output stage.
|
|
|
|
Post by unit7 on Jul 29, 2014 14:59:29 GMT -6
That is part of it. I use Jensen's JT-11 input transformer and their special JT-10K61-1M output transformer, designed for the LA-2 output stage. Thanks Jim! Yes, I've read your posts about changing to those Jensens, but knew nothing about the other mods you do. Very generous of you to share! I still haven't done more than testing mine, it's not even in the studio rack yet, but I thought it sounded pretty open and clean, so I believe this won't be the route for me. But it's interesting nevertheless. Thanks again! |
|
|
|
Post by mhbunch on Jan 22, 2017 12:29:09 GMT -6
unit7 I'm finally getting around to finishing mine up and wiring the sowter transformers in. Could you send a closer pic of the innards of yours just so I can make sure I have it right? Would be greatly appreciated! 😎
|
|
|
|
Post by unit7 on Jan 22, 2017 12:50:35 GMT -6
I'm not able to shoot a good pic so:
I/P xf:
Red - XLR cold (3)
Blue - XLR hot (2)
Green - between R5 and R6
Grey - ground
White - NC
O/P xf:
Red - negative side of big 10uf cap
White - XLR hot
Grey - XLR cold
Yellow - R20
Just make sure you use the same xformers as I. And that Sowter haven't changed specs..
|
|
|
|
Post by mhbunch on Jan 22, 2017 13:06:36 GMT -6
Wow thank you for the fast reply! 🤘😉🤘
|
|
moatl
Full Member
Posts: 31
|
Post by moatl on Nov 23, 2017 14:03:44 GMT -6
Just because I stumbled over this thread again I'm working on a new version of the LA2A style DIY chassis...let me know if you want me to mail you some pics Paul  |
|
moatl
Full Member
Posts: 31
|
Post by moatl on Nov 23, 2017 14:12:44 GMT -6
I'm actually working on a platform to make not only recreating the LA2A but also other wonderful pieces of legendary gear more accessible... ...I guess I should start a dedicated thread for it  |
|
