Amplifier Builders Guide-Gernsback Library No. 33- 1947 64 pgs.

Amplifier Builders Guide-Gernsback Library No. 33- 1951 64 pgs.

1978 HealthKit Mail Order Catalog 819 Winter Edition 103 Pgs

1947 Amateur Radio Builders Guide-Gernsback Library No. 35

Zenith 1957 TV Receivers Service Manual, 51 pgs., Chassis 16Z20, 16Z21, 17Z20...

1951 Allied's Radio builders handbook.

Vintage Marantz, Receivers, Components, Speaker Systems Brochure. 1972. 23 pgs.

1994 NAD Amp Stereo Pure & Simple Prod. Brochure 36 Pgs. Minor Writing