rlaury

TubeTech LCA2A
« on: November 19, 2018, 08:45:22 PM »
Anyone have a schematic on the LCA2A.  I have 2 in the shop for repair.
I have the alignment instructions. I need the schematic.

TIA
RonL
« Last Edit: November 19, 2018, 08:50:14 PM by rlaury »
When all you have to work with is a hammer,
everything looks like a nail.


mjrippe

Re: TubeTech LCA2A
« Reply #1 on: November 20, 2018, 10:52:54 AM »
LCA-2B full manual on my Dropbox: https://www.dropbox.com/s/tnpmx4q0laj3nxb/LCA-2B.pdf?dl=0

I don't know the difference between the A and B versions, but it should help.

shabtek

Re: TubeTech LCA2A
« Reply #2 on: November 20, 2018, 11:26:48 AM »
Does it use vactrolls?
"really fine players do not use stomp boxes or master volume, they match the amp to the room and turn it up to 11.  Stevie Ray, BB King, Albert King, Duane Allman, Dicky Betts, Louis Armstrong"
   -CJ

fazer

Re: TubeTech LCA2A
« Reply #3 on: November 20, 2018, 12:13:35 PM »
I just posted the LC2A schematics for Amplifier and Sidechain in the technical section.  Its different transformer and gain structure than a LCA2B but they are similar.   I have full manual if you need it but you said you have the alignment section.

Its Variable Mu compressor .   Does not use vactrols.

fazer

Re: TubeTech LCA2A
« Reply #4 on: November 20, 2018, 01:24:16 PM »
I posted the Manual and Alignment section also.

rlaury

Re: TubeTech LCA2A
« Reply #5 on: November 20, 2018, 03:50:07 PM »
LCA-2B full manual on my Dropbox: https://www.dropbox.com/s/tnpmx4q0laj3nxb/LCA-2B.pdf?dl=0

I don't know the difference between the A and B versions, but it should help.

Thanks everyone! You saved the day!
When all you have to work with is a hammer,
everything looks like a nail.

mikeyB

Re: TubeTech LCA2A
« Reply #6 on: November 21, 2018, 09:34:28 AM »
I've been trying to get the multiband compressor SMB-2C schematic   for ages, but to no avail. I'm interested in how they have done, the tube crossovers and the sidechain implementation.
Anyone with a schematic please?

Thanks in advance.
making better music!


 

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