B Street Studio Construction And Remodeling:
Control Room Electronics Installation
by Chad Hauris, Retro Electronics and Audio Lab,
Midland, Texas, 12/18/05, updated 1/28/05
B Street control room uses much of the old equipment of KJBC, Midland.
It has a production control board, a main audio control board, 2
16" turntables, Ampex tape recorders, cart players, and more. Here are
pictures of the electronics installation in the control room.
Please click the pictures for larger views.
Here is the Ampro board at the beginning of installation. When it was
removed from KJBC, they just cut all the wires, so we removed all the
old wire stubs from the terminals.
Chad testing the board for the first time. We needed to replace the
monitor amp output transistors, which are 2N3055's. This is a mono
board with program and audition channels.
Here is another view of the Ampro board, before installation of the
turntables in the counter.
Testing the Ampro board.
Mounting the rear part of the speaker box.
Chad with Ampro board, as it was first set down in the control room.
The wiring in this board was an awful mess! When it was removed they
just cut all the wires. We also neede d to replace the transistors
shown here (they are for the monitor speaker amp).
More messy wiring in the board before installation.
Chad working on Gates turntables.
Using the heat gun to shrink the heat shrink tubing while re-wiring the
Gates turntable, repairs finshed. We installed new capacitors, and
added new grounded power cords. The terminal strip connects to the
Here is the inside of the Ampro board showing the modules. Also, one of
the Gates turntables can be seen.
Chad working on the installation.
Chad with the new Shure Unidyne mic at the the shop.
John with new Shure Unidyne mic.
John installs the Jensen Vibranto speaker into the speaker panel.
Looking through control room window at Chad with Ampex 351 tape machine.
Testing the Gates turntables. We installed a relay system for
activating the turntable motors from the board through start and stop
buttons. These 16 inch turntables are equipped with Rek-O-Cut tonearms
and Stanton 500 cartridges.
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