Psidex Audio Laboratory PGP-1A Operation Notes

Table of Contents

Download this manual

PSIDEX AUDIO PGP-1A PRE-AMPLIFIER

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 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..

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.

OPERATION NOTES

FOR

Table of Contents

Do you have a question about the PGP-1A and is the answer not in the manual?

Page 1: Operation Notes
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.
Page 2 Always provide for adequate air circulation around the PGP-1A chassis. Tube based equipment can run warm to hot! Plug the line cord into the PGP-1A IEC power inlet and connect to a proper ac power source. Set POWER switch to ON and power led indicator will light to show unit is ready for operation.
Page 3 REAR PANEL POWER INLET This unit uses a standard 3-pole IEC male power inlet connector with built in fusing. A spare fuse is included in the connector fuse drawer. Always replace fuses with the proper rating for the line voltage in use in accordance with the ratings shown above in the above LINE VOLTAGE SELECT section.
Page 4: Technical Data
Depth 9.5 inches. • 8.5 pounds. Weight The PGP-1A is sold with a one year warranty against all manufacturing defects. Replacement or repair at the option of PSIDEX Design and Product specifications may change without notice to maintain quality and performance.
Page 5 NOTES...