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.

In questo link sono elencati 32 modelli, di cui 25 con immagini e 10 con schemi.
Elenco delle radio e altri apparecchi della Radford Electronics Ltd.; Bristol