• Country
• Great Britain (UK)

• Manufacturer / Brand
• RCA Great Britain Ltd; Sunbury-on-Thames

• Year
• 1956 ?

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 165814

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

• Number of Tubes
• 5

• Valves / Tubes
• EF86 EF86 KT66 KT66 GZ32

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 100-115; 116-135; 136-150; 200-215; 216-235; 236-250 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 12 W (20 W max.)

• Material
• Metal case

• from Radiomuseum.org
• Model: New Orthophonic High-Fidelity Power Amplifier LMI-32216 A - RCA Great Britain Ltd; Sunbury

• Shape
• Chassis only or for «building in»

• Dimensions (WHD)
• 15.75 x 7.5 x 7.75 inch / 400 x 191 x 197 mm

• Notes

• A 12 watt valve mono power amplifier for use with the RCA LMI-32215A Pre-Ampifier. With Hum control and Damping Factor control, 3 pin AC mains power socket, 2 pin Auxiliary AC Supply socket, 2 pin socket for loudspeaker and 8 pin sockets for connection to Tuner and the Preamplifier.

  Specification
  OUTPUT POWER	12/20 watts nominal rating. Peaks in excess of 20 watts with power maintained over frequency range 25 to 20,000Hz
  DISTORTION	Less than 0.1% at 10 watts - measured at 700Hz
  INPUT VOLTAGE	1.2v for 12 watts output
  FREQUENCY RESPONSE	Within 0.2dB from 20 to 25,000Hz Within 0.5dB from 10 to 60,000Hz
  FEEDBACK	40dB total
  NOISE LEVEL	85dB below 12 watt level
  IMPEDANCE
  Input impedance	470kΩ
  Load impedance	4, 7, 15Ω
  Damping factor	Variable from negative to positive values through infinity

  Similar to the RCA Photophone LMI-32216 Power Amplifier.

• Net weight (2.2 lb = 1 kg)
• 33 lb 0 oz (33 lb) / 14.982 kg

• Mentioned in
• -- Original prospect or advert (Wireless World September 1956)

• Literature/Schematics (1)
• - - Manufacturers Literature (LMI-32216A Specification)

• Author
• Model page created by Mark Donen. See "Data change" for further contributors.

• Other Models

• Here you find 5 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from RCA Great Britain Ltd; Sunbury-on-Thames