Bush TR82C Transistor Radio

Serial Number 349/....

Bush TR82C Transistor Radio LW/MW Wavebands (158 to 280 kHz and 525 to 1605 kHz) with push button waveband selection, off/on/tone control and volume control.Powered by a single 9v PP9 battery.Seven transistors (AF117, AF117, AF117, OC71, OC81D, OC81, OC81) with push-pull output driving a 5 inch Celestion loudspeaker. Like many transistor radios of this era it has a socket for a car aerial in the back panel. UK 1963

I was lucky to get this radio as part of a job lot on Ebay as nobody else seemed to want them. There was not much wrong with it that could not be rectified with a good clean, though it had been dropped at some time and there were a couple of chips to the case and the cover to one side of the handle was missing. I had to replace the rubber grommets which hold the tuning capacitor in place and use epoxy adhesive to repair one of the internal fixings. It has a cream coloured cabinet and blue leather look sides and chrome trim. This one of the later versions of the TR82, which has the less reliable AF series transistors. Unlike the original TR82 this has an earphone socket and the BUSH on the front is part of the plastic moulding rather than the separate brass letters of the originals.

The following is an interesting snippet from the operating instructions:
Transistors may be expected, under normal operating conditions to have a much longer life than valves. If, however a transistor should need be replaced, this must be done by your dealer. Transistors cannot be plugged in like valves and for the purposes of servicing the must be treated in the same way as other components.

I was puzzled by the circular indentation on the lower right of the back panel and discovered that this case was designed in 1957 to house the Bush MB60 5 valve mains/battery MW/LW portable radio. This case designed by David Ogle was used for many years and is perhaps the most remembered British transistor radio. More recently the design has been resurrected and used to house a modern set including a VHF band.

The white circular disc on the aluminium chassis has the chassis number A349. The pushbuttons actuate a conventional rotary wafer switch.

Martin J. Pratt who is a Director of R&M Rentals Ltd recently contacted me to say that his granddad Robert J Sprules who worked for Bush before and after WW2 designed the circuit for this model. Sadly he passed away lin 2013 but was still repairing the odd TR82, he was 92. Martin has a number of working examples of the TR82.
 

You can find a link to a very informative article on these radios here: http://www.vintage-radio.net/ Have a look as well at the page describing my other TR82 radios: bushtr82b.html and bushtr82c_2.html