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Portable Tape Recorder TR50B

Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466390) R-Player Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466392) R-Player
Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466393) R-Player Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466397) R-Player
Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466399) R-Player Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466408) R-Player
Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466403) R-Player Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466400) R-Player
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Portable Tape Recorder TR50B; EMI; Hayes, (ID = 1466390) R-Player
EMI; Hayes,: Portable Tape Recorder TR50B [R-Player] ID = 1466390 933x1241
Select picture or schematic to display from thumbnails on the right and click for download.
For model Portable Tape Recorder TR50B, EMI; Hayes, Middlesex:
The Record interlock button missing (behind transport switch so would not be visible)
 
Country:  Great Britain (UK)
Manufacturer / Brand:  EMI; Hayes, Middlesex
Year: 1955 ? Category: Sound/Video Recorder and/or Player
Valves / Tubes 9: EF40 EF40 Z77 or EF91 L77 Z77 or EF91 N78 DH77 or 6AT6 N78 U50
schematic requested
Main principle Audio-Amplification
Wave bands - without
Details Tape Recorder
Power type and voltage Alternating Current supply (AC) / 220-250 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 7 inch = 17.8 cm
Power out
from Radiomuseum.org Model: Portable Tape Recorder TR50B - EMI; Hayes, Middlesex
Material Leather / canvas / plastic - over other material
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 458 x 336 x 430 mm / 18 x 13.2 x 16.9 inch
Notes

The tape winds on the take up spool oxide side out, so full track machine. There is a separate monitor head.

Speed is 7.5 & 3.75 ips. Other models in the series will have different speeds.

A switch on the rear selects the metering function.

The internal loudspeaker has an on/off switch.

Very similar to TR50 (lacking dial centre rear). There are a number of different superficially similar TR51 models.

It is portable only in the sense of transportable at a time when similar tape recorders were large consoles. It's very heavy with two stout handles. When the lid is closed it resembles a "flight case".

There are two main electronics chassis:

PSU & Audio amp: DH77 (or 6AT6) N78 U50

Record/Replay: This has EF40 x 2 and Z77  on a single anti-vibration mount with L77 EF91 N78  mounted directly.

Removal from "Rexine" style covered Wooden "Flight Case".

  1. Un-hitch the lid retaining bar and place unit upside down on a foam mat or cushion.
  2. Remove rear panel (knob pulls off) and remove meter switch extension shaft.
  3. Undo 4 screws on base.
  4. Lift box/cabinet off the chassis.
Net weight (2.2 lb = 1 kg) 29 kg / 63 lb 14 oz (63.877 lb)

Model page created by Michael Watterson. See "Data change" for further contributors.



All listed radios etc. from EMI; Hayes, Middlesex
Here you find 27 models, 17 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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