Retrovox - Australian Guitar Amps - 1940's Amplivox other pages in this section - 1966 Fi Sonic

 

Bridgewater Amplivox Guitar Amp

This Bridgewater Amplivox is the oldest Australian made guitar amp in Retrovox House.

Forgotten in a shed somewhere for many years, BW's slumber has yet to be disturbed.

10" Magnavox Australian made field coil speaker fitted with 5K:VC transfomer. The field coil is energised with dc and acts as the filter choke as well, so there's a few extra wires and volts in the five core speaker connection.

Chassis removed from cabinet. Valve lineup is 6J7G pentode preamp, 6J7G pentode driver 6V6GT pentode output and 5Y3GT rectifer. Power transformer made by Henderson.


"adjust volume as required"


Internal construction. The big caps are 8uF


Detail of field coil speaker and output transformer


Porthole cell grill cutout


Last Update 10NOV2000. This webspace
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Retrovox - Australian Guitar Amps - 1940's Amplivox other pages in this section - 1966 Fi Sonic