Pre-73 Mk III A big meter selectable to

A big meter selectable to show gain reduction or output level at two different reference levels

Frequency response: 50Hz – 20kHz

the GA-47 is as close as you’ll get to the real thing

Do experiment with mic placement and with the filters

as a drum overhead or room mic and in any other application where you would use a vintage style tube condenser mic

Pre-73 Mk III A big meter selectable toThe PRE 73 MKIII is a one channel vintage style microphone, line and instrument preamplifier. The signal path uses only discrete components like resistors, capacitors and transistors. The in and output is transformer balanced, using two different transformers, each one optimized for its purpose. This is the way audio components were built before integrated circuits became available. The circuit used in the PRE 73 MKIII is similar to the preamp section