
OPERATION NOTES
FOR
PSIDEX AUDIO PGP-1A PRE-AMPLIFIER
DESCRIPTION
The Psidex Audio Laboratory PGP- 1A is a vacuum tube based microphone pre-
amp and program line amplifier designed to provide solid, robust audio from any
low impedance microphone ranging from low output ribbon to high output condenser.
A 30 dB input attenuator is provided to allow using the unit as a bridging line
amplifier, general purpose gain block or mixing amplifier.
INSTALLATION
Installation of the PGP-1A is straightforward. Unit can be rack mounted using
appropriate hardware. Mounting screws should be used with a nylon washer or be
of the non-marring type to prevent damage to the panel finish. CAUTION: BE
SURE THE AC POWER SUPPLY YOU ARE USING IS SAME AS THAT
MARKED ON THE UNIT REAR LABEL. Domestic (USA) units are shipped
strapped for 120 volt operation..
LINE VOLTAGE SELECT
The PGP-1A is strapped for 120 volt ac operation for all units shipped in the U.S
and to Canada. The unit may be set up for 240 volt ac operation by replacing the 4
wire connector at P8 with a connector arranged for 240 volt operation. P8 is located
on the main pcb. CAUTION: THE MAINS LINE FUSE MUST BE CHANGED TO
A RATING OF 0.160 AMPERES, TYPE T, FOR 240 VOLT OPERATION. A
PROPER FUSE MUST BE USED TO MAINTAIN PRODUCT SAFETY. A
connector and fuse kit can be obtained from Psidex for making 240 volt conversion.
1
Содержание PGP-1A
Страница 5: ...5 NOTES...