- Released May 1959
- LW plus MW
- 7 new-fangled transistor thingies.
- Battery only (9V)
- Original cost £17 8s 11d
A classic case style designed by David Ogle that first
saw the light of day in 1957 as a proper (valve) radio.
There are various model number suffixes such as 'B', 'C' and 'D'. These
are not circuit revisions but in fact refer to the different colours that
were produced. 'B' refers to brass with brown sides and 'C' refers
to chrome with blue sides ; can anyone suggest what the 'D' would
stand for ? This particular set has the additional 'L' suffix which indicates
that it has an additional tuning button labled '208' which was intended
to recieve Radio Luxembourg. I believe there is also a version which was
equipped with the marine "Trawler Band" though I've not seen
There are a number of variants of circuitry used in these sets. The first
sets used the generally reliable OC44/5 transistors with OC71's doing
the audio work. The audio section was later updated to used OC78's and
OC81's, and the R.F. transistors replaced with the dodgy AF117's which
have developed a reputation for developing internal shorts.
have to grudgingly admit it doesn't sound bad, certainly far better than
any other tranny set I've heard from the period. I'm no expert on this
transistor stuff but the audio stage is more complex than I'd expected,
with two driver transistors providing enough gain such that the push-pull
output stage can afford to utilise negative feedback (center-tapped winding
on transformer T2). This helps reduce distortion, particularly cross-over
distortion ofwhich this type of push-pull circuit is only too keen to
generate. A tone control on an early transistor set also seems unusual
to me, but then what do I know.
The same case design was used in a number of Bush models :-
- The MB60 mains/battery valve set
- Various TR82's
- ETR82 valve / transistor hybrid. As is typical of a number of manufacturers,
export models would have the standard L.W. band replaced by a S.W. band.
In 1959 commercial transistors were not really up to the higher frequencies
of S.W. and hence the front end circuitry would need to be valve based.
- ETR92 - Rapid transistor development meant by the end of 1959 the
old ETR82 design could be replaced by an all-transistor design. Or,
I guess, perhaps a portable radio still having valves in it had proved
unpopular ? It'd be interesting to compare the cost of these two export
- Transistor development continued apace and by 1961 were cost-effective
enough for use in high frequency consumer electronics, leading to the
V.H.F.-equipped Bush VTR103.
||There is a copy of the Trader service sheet #1459 on CD#1.
clean, excellent chrome,and complete right down to the original little plastic
bag intended to protect the set's internals should the battery leak.
There are a few signs of previous work, such as the replacement of one of
the notoriously unreliable AF117's but there's no bodges and it works well.
is the case with so many TR82's, there is a small chip missing out of a
lower corner of the rear cover. I can only assume this is due to people
trying to prise the rear cover off, though once the thumping great chrome
you-must-be-freakin'-blind-if-you-can't-see-me retaining screw is undone
the back seemed to come off quite easilly to my mind.
||May 2003 N.V.C.F for £25. A very reasonable price with no sign of
the usual "N.V.C.F. surcharge".
||In recent years, modern manufacturers have released modern radios styled
as per previous 60's designs, and this case design has re-appeared with
a Bush badge and are readilly available (model TR82/97). If you directly
comare the new set with the original then a number of errors will be seen,
but then I guess the main buyers ofthese sets probably wouldn't notice or
You can find a review of the modern version on the Vintage
Radio website (www.vintage-radio.com/reviews/tr82-97-radio.shtml)
Extra push button (right) for '208'
No PCB's here. And hey, there's enough room to
replace them trannies with some valves. Hmmm ....