Preamplifier Tube Powered 1931 HowTo Build PLANS

Description

"Pre-Amplifier Improves Home Recording". Plans for a Preamplifier for use with a microphone or record player. Can be used to turn a radio into a PA.
Uses two 227 Tubes.
This is an original 2 page magazine article from 1931.
We do not photocopy these.
Article Includes
Measured Drawings and Diagrams
Instructions
Schematic Drawings and Photos
Preamplifier Tube Powered 1931 HowTo Build PLANS
Preamplifier Tube Powered 1931 HowTo Build PLANS
Click images to enlarge
Description
"Pre-Amplifier Improves Home Recording". Plans for a Preamplifier for use with a microphone or record player. Can be used to turn a radio into a PA.
Uses two 227 Tubes.
This is an original 2 page magazine article from 1931.
We do not photocopy these.
Article Includes
Measured Drawings and Diagrams
Instructions
Schematic Drawings and Photos
Payment
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Shipping
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