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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Quotation from Johnson & Phillips Ltd for a J.& P. Full wave converter and battery charger.

Identifier  ExFiles\Box 32\5\  Scan013
Date  28th November 1922
  
V1589
.E.F.C.
COPY OF LETTER RECEIVED FROM:-
JOHNSON & PHILLIPS, LIMITED,
CHARLTON, LONDON, S.E.7.
JAE.69698.
28th November, 1922.
Messrs. Rolls-Royce Ltd.,
Nightingale Road,
Derby.
Dear Sirs,
Your reference - Wd{Mr Wood/Mr Whitehead}/CEA17/EJ241122.
In reply to your enquiry of the 24th inst.,
we have much pleasure in quoting you for -
1 - J.{Mr Johnson W.M.}& P. Full wave converter as illustrated
and described in lists herewith, suitable for
use on 50 cycle A.C. circuit having an output
of 6 amperes at 18 volts suitable for charging
a 12 volt, 60 ampere hour battery. (We have these
converters in stock suitable for 100-110 volt
or 200-220 volt supply).
40 to 50.
PRICE.......... £12.10.0 Nett.
We regret we are unable to quote for a converter
suitable for charging 12 volt batteries in series, it would
be necessary to use a separate converter for each battery
if more than one is required to be charged at the same time.
Trusting to be favoured with esteemed order,
We are,
Yours faithfully,
JOHNSON & PHILLIPS LIMITED
AC.
Sales and Contact Manager.
  
  


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