• Country
• Estonia (Eesti, Tallinn)

• Manufacturer / Brand
• RET Raadio-Elektrotehnika Tehas see Punane, Radioelectronic Plant (RET)

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 125696

• Number of Tubes
• 3

• Valves / Tubes
• Z21 Z21 KT21

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown)

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 2&120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 20 cm = 7.9 inch

• Power out
• 0.15 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Maret 5 - RET Raadio-Elektrotehnika

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 490 x 290 x 230 mm / 19.3 x 11.4 x 9.1 inch

• Notes
• Estonian standard receiver

• Net weight (2.2 lb = 1 kg)
• 8 kg / 17 lb 9.9 oz (17.621 lb)

• Price in first year of sale
• 100.00 EEK

• Mentioned in
• - - Manufacturers Literature

• Literature/Schematics (1)
• - - Data from my own collection

• Author
• Model page created by Urmas Tingas. See "Data change" for further contributors.

• Other Models

• Here you find 9 models, 9 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RET Raadio-Elektrotehnika Tehas see Punane, Radioelectronic Plant (RET)