Which solid state bass amp?

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Which solid state bass amp?

Postby redheadav on Wed Sep 06, 2017 11:48 am

Hi, I'm new to this forum so I'm hoping someone here has the info I am looking for.

I recently bought the guts of a solid state Vox bass amp (PCB, input/control panel, speaker but no cab) for a project. I am trying to identify which model it is and find a correct schematic. Can anyone help? I have searched online and even asked Vox but to no avail.

Here's what I know:
- it's a solid state bass combo amp with a single 12" speaker (4 ohm)
- dates to 1978/79 (the speaker had a VSL label overlaid with a Vox Limited label)
- the input and control panel looks identical to the Vox Escort Bass 50. The text on the panel reads "Vox Limited" and "Bass 50"
- circuit appears to be similar to 1984 Vox Escort Bass 50 schematic I have found except lots of R and C values are different
- the bridge rectifier diodes are soldered across a smoothing cap which does not appear on the 1984 schematic
- the PCB was "manufactured by the Faraday group of companies" according to the text on the PCB
- the guy who sold it to me said it was a Cambridge Bass 50 but Vox do not recognise this model when I asked about it.
- there is a number on the inside of the control panel "185108"

Do I have an early version of the Escort Bass 50, or is it something entirely different? Does anyone have the correct schematic please? I have photos if it helps, but the board will not let me upload at the moment.


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