• Country
• United States of America (USA)

• Manufacturer / Brand
• Philco, Philadelphia Stg. Batt. Co.; USA

• Year
• 1940/1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 18857

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 4

• Valves / Tubes
• 1LC6 1LN5 1LD5 1LB4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: PT-89 Transitone - Philco, Philadelphia Stg. Batt

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes

• The Philco PT-89 Transitone is a very compact (for its day) battery powered portable radio. A specially designed loop antenna is built into the carrying strap.

• Price in first year of sale
• 15.00 $

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Mentioned in
• Philco Radio 1928-1942

• Literature/Schematics (1)
• Rider's Perpetual, Volume 14 = covering up to late 1942 (C=1944) (Philco 1941 RMS Year Book)

• Literature/Schematics (3)
• Philco Folder No. PR 798 for 1941. Folder No. PR-799-A for 1941.

• Other Models

• Here you find 4007 models, 2207 with images and 3656 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA