VHF Band I & III Distribution Amplifier VH2

Radford Electronics' Model VH2 Band I & III Distribution Amplifier was a sophisticated device designed for television signal distribution in the late 1950s.

The VH2 consisted of two separate amplifiers, one for Band I and another for Band III, each with independent pre-set gain controls. These are fed into a combiner unit, allowing for the simultaneous amplification and distribution of both VHF television bands.

Output Configuration

• 9 attenuated output sockets
• 1 full-gain output socket for feeding distribution systems
• Attenuated sockets could be used individually or simultaneously without affecting other outputs

Performance Specifications

• Gain:
  • +15 dB per channel at maximum output socket
  • 3 dB per channel at attenuated outputs (when loaded to 80 ohms)
• Bandwidth: -2 dB per channel
• Power Output: 0.2 V into 80 ohms per channel without cross-modulation of video/sound carriers
• Isolation: Better than 22 dB between sockets

Input/Output Characteristics

• Input: 80 ohms, separate coaxial socket for each channel
• Outputs: 10 total (9 attenuated, 1 full gain)

Power Supply
Mains input with tapped transformer for 200/240V AC operation

Pricing
12 guineas (as of 1959)

Radford Electronics' VH2 amplifier built upon their earlier expertise in RF technology, which began with their Television RF Pre-amplifiers in 1948.
The VH2 showcased their growing proficiency in both audio and RF, offering flexible installation with full-gain and attenuated outputs for diverse distribution needs.

Vous pourrez trouver sous ce lien 32 modèles d'appareils, 25 avec des images et 10 avec des schémas.
Tous les appareils de Radford Electronics Ltd.; Bristol