30 MHz Nuvistor preamplifier
Homebrew - ORIGINAL; GB
- Country
- Great Britain (UK)
- Manufacturer / Brand
- Homebrew - ORIGINAL; GB
- Year
- 1964
- Category
- RF (Radio Frequency-) Amplifier
- Radiomuseum.org ID
- 304520
- Number of Tubes
- 1
- Valves / Tubes
- Main principle
- Radio Frequency Amplification only
- Wave bands
- Short Wave (SW only)
- Power type and voltage
- Powered by external power supply or a main unit. / 6.3 AC and 200 DC Volt
- Loudspeaker
- - - No sound reproduction output.
- from Radiomuseum.org
- Model: 30 MHz Nuvistor preamplifier - Homebrew - ORIGINAL; GB
- Shape
- Very small Portable or Pocket-Set (Handheld) < 8 inch.
- Dimensions (WHD)
- 112 x 70 x 61 mm / 4.4 x 2.8 x 2.4 inch
- Notes
-
Nuvistor triode preamplifier for a 30 MHz receiver.
Centre frequency 30 MHz.
Bandwidth 200 kHz.
Input and output by link coupling. Impedance 75 ohms.
Input and output circuits tuned by ferrite cored inductors.
Neutralisation adjusted by air dielectric trimmer capacitor.
The preamplifier is powered from the receiver.Built in an Eddystone die cast box.
RCA unveiled the nuvistor in 1959, and for a time it remained competitive with transistors for high frequency and high temperature applications. They were the final stage of valve miniaturisation that had progressed since the 1920s.
- Net weight (2.2 lb = 1 kg)
- 0.356 kg / 0 lb 12.5 oz (0.784 lb)
- Author
- Model page created by Bruce Taylor. See "Data change" for further contributors.
- Other Models
-
Here you find 41 models, 19 with images and 7 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Homebrew - ORIGINAL; GB
Collections
The model 30 MHz Nuvistor preamplifier is part of the collections of the following members.