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Amplifiers

Aphex 207D

Aphex 207D valve (tube) microphone amplifier Repair

11th March 2022 OVS 0

A failed X2 capacitor in the power supply of an Aphex 207D microphone preamp was producing a very strong smell and needed replacing.

Cambridge Audio A500 Amplifier

Cambridge Audio A500 – Not Switching On

18th November 2021 OVS 0

A Cambridge Audio A500 amplifier in for repair that won’t switch on

Onkyo Receiver TX-SR607 faulty

Onkyo TX-SR607 – No Front Panel Display

6th October 2021 OVS 0

Repair of an Onkyo TX-SR607 with a faulty front panel display.

Onkyotx-sr507

Onkyo TX-SR507 Stuck in Standby

2nd June 2021 OVS 0

Failed transistors in the output stage put this Onkyo into protect standby mode

Adastra Amplifier for use in hospitality

Adastra Amplifier for Pubs, Cafes and Restaurants

28th May 2021 OVS 0

A modern class D multizone amplifier designed for use in hospitality.

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Recent Blog Posts
  • Quad 34 Preamp – Picking up Computer Noise
  • Repair of a Vintage Hitachi HA-5300 Amplifier
  • Repair of a Rotel RA-840B Amplifier
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Email: orangevalleysystems@gmail.com
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