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TECH SUPPORT PAGE FOR THE
ORIGINAL LCMP:
TAPE OP MICROPHONE PREAMPLIFIER
PROJECT: July/August 2002 Issue
Last Update 11/5/03:
I made sparks and/or smoke, what should I do 4/27/03
Input Transformer center tap test. 4/17/03
Notes on separating the PSU and AUDIO boards in two
enclosures: 4/17/03
FAQ's: 6/6/03
My 50.4vdc supply doesn't adjust low enough, and it
makes noise: 4/17/03
AC / DC voltages for trouble-shooting: 4/17/03
Updates, Alternate Part Numbers for back orders:
Point - Point Wiring Diagram (In Color!)
Audio Board Assembly Pictures
PSU Assembly Pictures
The Ultimate Enclosure
Channel Summing / Line Input mod
Shielding Audio Transformers
New Audio Input transformer shield template and
photo tour (20 pictures may take a few minutes to download)
New Audio Full transformer shield template and photo
tour (20 pictures may take a few minutes to download)
AC Input circuit / Fuse information
Converting The Pad Switch to a Phase Switch
Attenuator and Transformer Information
Figure 1
Figure 2
Figure 3
Figure 4
TAPE OP ARTICLE: July / August 2002 Issue
LCMP Mechanical templates
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Last
update 10/8/07
